​06Cr13, the American standard 410S, is the lowest carbon content in the Cr13 martensitic stainless steel.Due to the microstructure of[TJC STEEL] the matrix under annealing condition, it is also classified as ferritic stainless steel in a few standards.

Standard Control
CHINA GB/T 20878-2007 S41008 06Cr13
（0Cr13）
GB/T 24511-2009 S11306
AMERICA ASTM A240-15a S41008,410S
JAPAN JIS G 4304:2005 SUS410S
GERMANY DIN EN 10088-2:1995[TJC STEEL] X6Cr13,1.4000

Component Specification
GRADE 06Cr13* 410S SUS410S 1.4000
C ≤0.08 ≤0.08 ≤0.08 ≤0.08
Si ≤1.00 ≤1.00 ≤1.00 ≤1.00
Mn ≤1.00 ≤1.00[TJC STEEL] ≤1.00 ≤1.00
P ≤0.040 ≤0.040 ≤0.040 ≤0.040
S ≤0.030 ≤0.030 ≤0.030 ≤0.015
Cr 11.5~13.5 11.5~13.5 11.5~13.5 12.0~14.0
Ni (≤0.60) ≤0.60 (≤0.60) --
*：S41008 is listed in the table, while S11306 is slightly different in composition.

Mechanical Property
Density（g/cm3）20℃[TJC STEEL] 7.75
Specific heat [kJ/(kg·K)]  0~100℃ 0.46
Heat conductivity [W/(m·K)] 100℃ 25.0
coefficient of linear expansion（10-6/K） 0~100℃ 10.6
0~500℃ 12.0
specific resistance（Ω·mm2/m）20℃ 0.60
longitudinal modulus of elasticity（kN/mm2）20℃ 220
magnetism Y

Mechanical Property

Dimensions of sample hairs（mm） ≤75
heat treating regime anneal[TJC STEEL] 800 ~ 900 ℃ slow cooling
Or about 750℃ fast cooling

quench 950 ~ 1000 ℃ cold oil
temper 700~750℃cold oil
Mechanical properties 
(quenching + tempering)
Specified non-proportionality
Extension strength MPa ≥345
strength of extension MPa ≥490
Percentage elongation after fracture % ≥24
Percentagereduction of area; reduction of area ≥60
The hardness of delivery HBW anneal ≤183

Material Characteristics:
(1) The corrosion resistance and corrosion resistance are similar to 1Cr13 (410) and better, in low concentration of mild organic and [TJC STEEL]inorganic acid, alkali and some chemical conditions have corrosion resistance.
(2) Good oxidation resistance, sustainable use in 705℃ environment.
(3) good plastic toughness, easy to be formed by rotation, bending and rolling.
(4) It can be welded by common fusion and resistance technology.

Applications:
The main product form [TJC STEEL]is plate, used for structural parts such as automobile muffler and exhaust system components, but also widely used in containers, heat exchangers, underground pipes, etc.

T4003, equivalent to the European standard 1.4003, is a practical ferritic stainless stee  l, often used in place of low carbon steel. Around 2008, [TJC STEEL]TICO introduced and developed this brand for C80B stainless steel heavy load coal trains.

Standard Control
CHINA GB/T 20878-2007
GB/T 3280-2015
GB/T 4237-2015 022Cr12Ni
Ministry of Railways、TISCO T4003
AMERICA ASTM A240-15a[TJC STEEL] S40977
GERMANY DIN EN 10088-1:2005 X2CrNi12
1.4003

Component Specification
GRADE 1.4003
S40977
022Cr12Ni T4003
C ≤0.030 ≤0.030
Si ≤1.00 ≤1.00
Mn ≤1.50 1.00~2.50
P ≤0.040 ≤0.040
S ≤0.015 ≤0.015
Cr 10.5~12.5[TJC STEEL] 11.0~13.0
Ni 0.30~1.00 0.60~1.00
N ≤0.030 ≤0.025
Ti -- 8C~0.35

Mechanical Property
Rp0.2
(MPa) Rm
(MPa) A
(%) HARDNESS
HBW
≥350 ≥480 ≥20 ≤250
COLD BEND  180°d=2a -40℃AKV(J)
--[TJC STEEL] ≥34*
THK≥6mm.

Material Characteristics:
The T4003 offers a range of benefits of ferritic stainless steels such as strength, corrosion and wear resistance, weldability, formability, good durability [TJC STEEL]and lower maintenance.

Applications:
In China,T4003 is mainly used for railway freight car body, the product form is plate coil, TISCO's market share accounts for more than 90%.As a good low cost stainless steel solution, the T4003 is also used in sweeps, gravel vehicles, tanks, [TJC STEEL]chimney pipes, staircases, railings, etc.

​14CrMnNi2MoA is a kind of low alloy high [TJC STEEL]strength structural steels.

Standard
BAR GJB 1951-1994
《Specification for high quality structural steel bars for aviation use》
FORGE PIECE HB 5024-1989
《Steel forgings for aviation》[TJC STEEL]

Component Specification（GJB 1951-1994）
C Cr Ni Mo
0.11~0.17 1.20~1.60 1.40~2.00 0.20~0.40
Si Mn[TJC STEEL] P S
0.35~0.65 0.65~0.95 ≤0.025 ≤0.015

Heat Treatment And Mechanics（GJB 1951-1994）
Dimensions of sample hairs（mm） 16
Heat treatment （℃） Quenching (oil cooling) 820~860
Tempering (air cooling) 180~220
Mechanical property Specified non-proportionality
Extension strength MPa ≥1080
yield  MPa[TJC STEEL] ≥885
Percentage elongation after fracture % ≥12
Percentagereduction of area; reduction of area % ≥55
Impact absorption work J ≥78
Hardness HBS Annealing or high tempering ≤255
Quenching + tempering 321~415

Performance and Application：
14CrMnsNi2MoA is a kind of excellent carburizing steel, which has good hardenability, high strength and impact toughness, good thermal stability, high bending fatigue strength and low notch sensitivity.After carburizing and[TJC STEEL] quenching and low temperature tempering, the surface has a high hardness, and the heart has good strength and toughness.Medium performance in cutting and cold deformation.It is suitable for the manufacture of heavy duty and high speed transmission gear, shaft and other parts requiring surface carburizing.

HC420LA is German standard, material number is 1.0556. It is a kind of low alloy high strength steel requiring high yield strength. [TJC STEEL]The product form is cold rolled coil.

Component Specification（DIN EN 10268-2013）
C ≤0.14 Al ≥0.015
Si ≤0.5 Ti ≤0.15
Mn ≤1.6 Nb ≤0.09
P ≤0.030[TJC STEEL] S ≤0.025

Mechanical Property
item transverse longitudinal test piece
yield strength Rp0.2 420~520 390~500
strength of extensionRm 470~600 460~580
elongation %[TJC STEEL] ≥17 ≥18

Applications:
HC420LA has good comprehensive performance. It is mainly used to manufacture auto parts, such as chassis, internal panel,[TJC STEEL] seat parts, etc. The processing method is cold forming.

​GH3536 is a nickel-based superalloy with high iron content, mainly reinforced by solid solution of chromium and molybdenum, with a density [TJC STEEL]of 8.3g/cm3.The most well-known commercial grade of the same steel is Hastelloy ® X Alloy.

National Standard
CHINA GB/T 14992-2005 GH3536(GH536)
AMERICA ASTM B572-2011 UNS N06002
HAYNES HASTELLOY® X alloy
JAPAN JIS H 4551-2000 NW6002
NiCr21Fe18Mo9
NIPPON YAKIN NAS HX
GERMANY DIN 17744-2002 2.4665
NiCr22Fe18Mo
VDM Metals[TJC STEEL] Nicrofer®4722 Co
alloy X

Component Specification
GRADE GH3536 N06002 NW6002 2.4665
C 0.05~0.15 0.05~0.15 0.05~0.15 0.05~0.15
Si ≤1.00 ≤1.00 ≤1.00 ≤1.00
Mn ≤1.00 ≤1.00 ≤1.00 ≤1.00
P ≤0.025 ≤0.040 ≤0.040 ≤0.020
S ≤0.015 ≤0.030 ≤0.030 ≤0.015
Ni -- Remainder[TJC STEEL] -- Other
Cr 20.5~23.0 20.5~23.0 20.5~23.0 20.5~23.0
Mo 8.0~10.0 8.0~10.0 8.0~10.0 8.0~10.0
Fe 17.0~20.0 17.0~20.0 17.0~20.0 17.0~20.0
Co 0.5~2.5 0.5~2.5 0.5~2.5 0.5~2.5
W 0.2~1.0 0.2~1.0 0.2~1.0 0.2~1.0
Al ≤0.50 -- -- ≤0.50
Ti ≤0.15 -- -- --
Cu ≤0.50 -- -- ≤0.50
B ≤0.01 -- ≤0.01 ≤0.01

Application：
GH3536 alloy under the high temperature of 1200 ℃, still has a very high strength and oxidation resistance, combined with excellent forming and welding performance, and excellent resistance to stress corrosion cracking performance, is widely used in gas turbine, industrial furnace, heat treatment equipment and the process of [TJC STEEL]nuclear components, such as gas turbine combustion cylinder, burner taper pipe, transition, spray rod, distillation and the chemical industry, muffle furnace, catalyst support grille, hearth baffle, pyrolysis operation and flash drier parts of pipes, etc.

Gr.8 is 9Ni type low carbon quenching and tempering steel, listed in the American standard of low temperature pipe A333 and low temperature heat exchanger pipe A334 two standards.Nickel is the most effective element to improve the low temperature toughness of steel -- GR.8 contains 9% Ni, which ensures its good toughness and[TJC STEEL] high strength at very low temperature, and its service temperature can be as low as -195℃.

National Standard
CHINA GB/T 18984-2016 06Ni9DG
AMERICA ASTM A333/A333M-11
ASTM A334/A334M-04a[TJC STEEL] Grade 8
JAPAN JIS G 3460:2013
JIS G 3464:2013 STPL 690
GERMANY DIN EN 10216-4:2004 X10Ni9
1.5682

Component Specification
GRADE Grade  8 06Ni9DG STPL 690 1.5682
C ≤0.13 ≤0.10 ≤0.13 ≤0.13
Si 0.13~0.32 0.10~0.35 0.10~0.35 0.15~0.35
Mn ≤0.90 ≤0.90[TJC STEEL] ≤0.90 0.30~0.80
P ≤0.025 ≤0.015 ≤0.030 ≤0.020
S ≤0.025 ≤0.008 ≤0.030 ≤0.010
Ni 8.4~9.6 8.5~9.5 8.5~9.5 8.5~9.5
Mo -- -- -- ≤0.10
Cu -- -- -- ≤0.30
V -- -- -- ≤0.05

Heat Treatment
Gr.8 Heat treated to control the microstructure as follows before delivery.

① quenching + tempering
Heat evenly to 800℃±15℃;Heat preservation, the heat preservation time is proportional to the thickness of 2min/mm, and not less than 15min;Immerse in circulating water and quench.
The steel tubes were reheated evenly[TJC STEEL] to 565-605 ℃;Heat preservation, the heat preservation time is proportional to the thickness of 2min/mm, and not less than 15min;Air cooling, or water quenching with a cooling rate of not less than 165℃/h.
(2) secondary normalizing + tempering
Heat evenly to 900℃±15℃;Heat preservation, the heat preservation time is proportional to the thickness of 2min/mm, and not less than [TJC STEEL]15min;Air cooling.
Reheated to 790℃±15℃;Heat preservation, the heat preservation time is proportional to the thickness of 2min/mm, and not less than 15min;Then air cooling.
Heat evenly to 565-605 ℃;Heat preservation, the heat preservation time is proportional to the thickness of 2min/mm, and not less than 15min;Air cooling, or water quenching with a cooling rate of not less than 165℃/h.

Tensile Property
strength of extension MPa ≥690
yield strength MPa ≥515

Elongation (longitudinal) % ≥22a
≥16b
A. Longitudinal strip test with a standard distance of 50mm and a wall thickness of ≥8mm, or all small-size samples tested with full section.
B. Standard round sample with a standard distance of 50mm or a smaller size sample with a standard distance of 4 times the diameter.

Impact toughness：
The minimum impact test temperature of the steel tube GR.8 is -195℃.The test results are determined by the average lateral expansion value of the impact sample relative to the notch.
Applications：
GR.8 is primarily used for the storage of structural materials for liquefied natural gas (LNG) terminals.LNG is stored at around -162 ° C and must be made from ultra-low temperature materials.Compared with other ultra-low temperature materials, GR.8 has lower cost than stainless steel and nickel-based alloy, higher strength than aluminum alloy and better low temperature toughness, and is currently the main material for large LNG storage tanks.

​

GH1139, original GH139, also expressed as 12 cr25ni16mn7nb, brand comes from the former Soviet union Э И 835, is a veteran of austenite[TJC STEEL] steel body is strong, its density is 7.83 g/cm3, main products for the sheet and rod form.

Component Specification（GB/T 14992-2005）
C ≤0.12 Cr 23.00~26.00 Ni 15.00~18.00
Si ≤1.00 P ≤0.035 N 0.30~0.45
Mn 5.00~7.00 S ≤0.020[TJC STEEL] B ≤0.010

Applications:
The performance level of GH1139 alloy is similar to that of GH3030 alloy. It has the characteristics of good hot working plasticity, stable structure [TJC STEEL] and friendly welding. It is suitable for making high-temperature bearing parts such as combustion chamber after stamping and welding, such as gas conduit parts made of thin plate, strip and profile working at 800~950℃ and medium stress.

Hastelloy C-22 alloy is a general Ni-Cr-Mo alloy with a density of 8.7g/cm3.Compared with the common Ni-Cr-Mo alloy, such as C-276, C-4, [TJC STEEL]625 alloy, it has better and more comprehensive corrosion resistance.

National Standard
CHINA GB/T 15007-2008 NS3308
AMERICA ASTM B462-2006
ASTM B574-2006
ASTM B575-2006 N06022
Special Metals INCONEL® alloy 22
Haynes International HASTELLOY® C-22®
JAPAN JIS H 4551:2000 NW6022
Nippon Yakin[TJC STEEL] NAS NW22
GERMANY DIN 17744:2002 NiCr21Mo14W
2.4602
VDM Metals VDM® Alloy 22
Nicrofer® 5621 hMoW

Component Specification
GRADE NS3308 N06022 NW6022 2.4602
C ≤0.015 ≤0.015 ≤0.015 ≤0.010
Si ≤0.08 ≤0.08[TJC STEEL] ≤0.08 ≤0.08
Mn ≤0.50 ≤0.50 ≤0.50 ≤0.50
P ≤0.020 ≤0.020 ≤0.025 ≤0.025
S ≤0.020 ≤0.020 ≤0.020 ≤0.015
Ni --- Remainder --- Other
Cr 20.0~22.5 20.0~22.5 20.0~22.5 20.0~22.5
Mo 12.5~14.5 12.5~14.5 12.5~14.5 12.5~14.5
Fe 2.0~6.0 2.0~6.0 2.0~6.0 2.0~6.0
W 2.5~3.5 2.5~3.5 2.5~3.5 2.5~3.5
Co ≤2.50 ≤2.50 ≤2.50 ≤2.50
V ≤0.35 ≤0.35 ≤0.35 ≤0.35

Material Characteristics:
(1) Excellent resistance to various corrosive media under oxidation and reduction conditions;It is one of the few materials that can resist the corrosion of moist chlorine gas, hypochlorite and chlorine dioxide solution, and has[TJC STEEL] significant corrosion resistance to high concentration of salt chloride solution (such as ferric chloride and copper chloride).
(2) It can also resist a variety of corrosive [TJC STEEL]environments at a high temperature of up to 677℃.
(3)Good resistance to pitting corrosion, crevice corrosion and stress corrosion cracking.
(4) Excellent welding performance.

Applications:
Hastelloy C-22 alloy has been widely used in chemical and petrochemical fields, such as the application in the contact with chloride-containing organic components and catalytic systems.This material is especially suitable for high temperature, mixed with impurities of inorganic acids and organic acids (such as formic acid and acetic acid), sea water corrosion environment.

​Alloy20 is an austenitic Ni-Fe-Cr based [TJC STEEL]superalloy, which can be regarded as both stainless steel and nickel based alloy.

National Standard
CHINA GB/T 15007
GB/T 15008
YB/T 5353
YB/T 5354 NS1403（NS143）
0Cr20Ni35Mo3Cu4Nb
AMERICA Special Metals INCOLOY® alloy 020
CARPENTER CarTech® 20Cb-3® 
ASTM B473
ASTM B462
ASTM B463
ASTM B464
ASTM B468[TJC STEEL] UNS N08020
ASTM A182 F20（forge）
GERMANY VDM Metals Nicrofer ® 3620 Nb
DIN 17744
DIN 17750
DIN 17751
DIN 17752
DIN 17753 NiCr20CuMo
2.4660

Component Specification
GRADE NS1403 N08020 2.4660
C ≤0.07 ≤0.07 ≤0.07
Si ≤1.00 ≤1.00 ≤1.00
Mn ≤2.00 ≤2.00 ≤2.00
P ≤0.030 ≤0.045 ≤0.025
S ≤0.030 ≤0.035 ≤0.015
Ni 32.0~38.0 32.0~38.0 32.0~38.0
Cr 19.0~21.0[TJC STEEL] 19.0~21.0 19.0~21.0
Mo 2.0~3.0 2.0~3.0 2.0~3.0
Cu 3.0~4.0 3.0~4.0 3.0~4.0
Nb 8×C~1.0 Nb+Ta:
8×C~1.0 Nb+Ta:
8×C~1.0
Co -- -- ≤1.5
Fe -- Remainder Other

Material performance：
(1) In chemicals containing [TJC STEEL]chloride, sulfuric acid, phosphoric acid and nitric acid, it has excellent ability to resist overall corrosion, intergranular corrosion, pitting and crevit corrosion.Corrosion resistance between 316L and Hastelloy alloy.Corrosion resistance is less than 316L in some amine facilities because of the tendency to form nickel-ammonium complex compounds.
(2) The extremely low carbon content, plus niobium element helps to reduce the precipitation of carbide in the heat-affected [TJC STEEL]zone, so it can be used in the welding state in most cases.All the common welding methods can be used successfully except oxy-acetylene.
(3) good cold forming, can be twice the radius of the material thickness of the bending, as well as tensile pressing molding operations.
(4) It also has excellent [TJC STEEL]mechanical properties in the environment of up to 500℃.
Applications：
Alloy 20 was first developed in 1951 for use in sulphuric acid and is the preferred alloy for sulphuric acid industry environments.It exhibits excellent stress corrosion cracking resistance in 20% ~ 40% boiling sulfuric acid.Because of its extraordinary corrosion resistance, the 20 alloy is now a popular choice in many [TJC STEEL]industries such as chemical, food, pharmaceutical and plastics, and is used as a high temperature alloy in heat exchangers, mixing tanks, metal cleaning and pickling equipment, and pipes.

C14415 is a copper alloy with a small amount of tin element added. Its electrical conductivity is close to that of pure copper, but it has better mechanical [TJC STEEL]properties.C14415 and C19210 have the same material characteristics, can be used interchangeably.

National Standard
CHINA GB/T 2061-2013 TSn0.12，C14415
AMERICA ASTM，CDA UNS C14415
JAPAN JIS H 3100:2012[TJC STEEL] C1441
GERMANY DIN CEN-TS 13388-2008 CuSn0.15，CW117C

Component Specification
GRADE TSn0.12
C14415 C1441 CuSn0.15
Cu ≥99.96* Rest Rest
Sn 0.10~0.15 0.10~0.20 0.10~0.15
Pb -- ≤0.03 --
Fe -- ≤0.02 ≤0.02
Zn -- ≤0.10 ≤0.10
P —[TJC STEEL] 0.001~0.020 ≤0.015
Ni -- -- ≤0.02
OTHER -- -- ≤0.10
*：The value includes (Cu+Ag+Sn)

Physical Properties (20℃)
DENSITY 8.9 g/cm3
ELECTRIC CONDUCTIVITY 85 %IACS
CONDUCTIVITY 49.30 MS/m
HEAT CONDUCTIVITY[TJC STEEL] 350 W/（m·K）
COEFFICIENT OF THERMAL EXPANSION 17.7 10-6/K
ELASTICITY MODULIS 128 GPa
SPECIFIC HEAT 0.385 J/（g·K）
POISSON RATIO 0.34 --

Processing Property
Cold workability GOOD
machinability[TJC STEEL] GENERAL
Electroplating sex FINE
Hot dip plating FINE
Soft soldering FINE
ERW GOOD

Applications:
The product form of C14415 is mainly [TJC STEEL]strip, which is widely used in lead frame of transistor (power integrated circuit chip), car water tank, refrigerated heat sink and switch socket, etc.

​Al-6XN is a super austenitic stainless steel developed and produced by Allegheny Technologies in the United States, with a density of [TJC STEEL]8.06g/cm3.The composition of Al-6XN is similar to that of 926 alloy.

Component Specification
GRADE AL-6XN Alloy 926
UNS N08367 N08926
C ≤0.030 ≤0.020
Si ≤1.00[TJC STEEL] ≤0.50
Mn ≤2.00 ≤2.00
P ≤0.040 ≤0.030
S ≤0.030 ≤0.010
Ni 23.50~25.50 24.00~26.00
Cr 20.00~22.00 19.00~21.00
Mo 6.0~7.0 6.0~7.0
Cu ≤0.75 0.5~1.5
N 0.18~0.25 0.15~0.25

Performance Characteristics：
(1) The high ratio of Cr, Mo, Ni and N alloy has good resistance to pitting corrosion, crack corrosion, intergranular corrosion and stress corrosion in various acidic corrosive environments containing chloride ions. The [TJC STEEL]comprehensive corrosion resistance is better than 316L, which is close to nickel-based alloy.
(2) Good mechanical properties, compared with the conventional austenitic stainless steel such as 304,316,317, has a higher tensile [TJC STEEL]strength, while maintaining excellent material toughness and impact strength.
(3) Excellent welding performance, easy to manufacture and install on site.

Applications：
Al-6XN alloys are ideal for the following applications:
-- Chemical treatment tanks and pipes
-- Process systems for offshore oil and gas platforms
-- Condensers, heat exchangers [TJC STEEL]and pipes containing seawater or crude oil
-- Filter washers, vats and press rollers in pulp bleaching plants
-- Flue gas scrubber environment of power plant
-- Tall distillation tower and packaging
-- Desalination equipment and pumps
-- Water piping system for nuclear power plants
-- Transformer boxes exposed to the Marine environment
-- Pharmaceutical equipment (purification)
-- Food processing equipment

1.2738 is a commonly used German standard plastic die steel, usually referred to as 738.The more popular name for this kind of steel is 718, which is the product name of Sweden One Win 100.718 general hardening hardening[TJC STEEL] to HRC28~36, processed into a mold after direct use, no further heat treatment.The pre-hardened 718 is called 718H.

National Standard
CHINA YB/T 094-1997 SM3Cr2NiMo
YB/T 107-2013 SM3Cr2MnNiMo
GB/T 24594-2009 3Cr2MnNiMo
GB/T 1299-2014
AMERICA approximate≈ P20+Ni
SWEDEN UDDEHOLM IMPAX SUPREME
ASSAB[TJC STEEL] 718 SUPREME
GERMANY DIN 17350-1980 40CrMnNiMo8-6-4
1.2738
Component Specification
STANDARD GB/T 1299 ASSAB DIN 17350
GRADE 3Cr2MnNiMo 718 1.2738
C 0.32~0.40 0.37 0.35~0.45
Si 0.20~0.40 0.30 0.20~0.40
Mn 1.10~1.50 1.40 1.30~1.60
P ≤0.030 -- ≤0.035
S ≤0.030 -- ≤0.035
Cr 1.70~2.00 2.0 1.80~2.10
Mo 0.25~0.40[TJC STEEL] 0.2 0.15~0.25
Ni 0.85~1.15 1.0 0.90~1.20

Performance Characteristics：
(1) excellent performance of polishing and photoetching;
(2) good machining performance;
(3)High purity and uniformity;
(4) uniform[TJC STEEL] hardness;
(5) The subsequent nitriding treatment or local flame quenching can improve the surface strength and surface wear resistance, and reduce the surface failure.

Applications：
Compared with the traditional plastic die steel P20, 718 has better toughness and hardenability due to the addition of 1% nickel, and it performs better in large cross section size molds.This steel is suitable for large, especially the thickness of more than 400mm, requiring uniform hardness, high toughness and good [TJC STEEL]surface polishing performance of plastic molds, such as TV frame and back shell, copy machine shell, bumper, shock absorber, instrument panel and other large molds, as well as trash can mold, die casting mold frame, etc..

​444 stainless steel is an ultra-low carbon and nitrogen, 18% chromium and 2% molybdenum, high corrosion resistance ferritic stainless steel, [TJC STEEL]steel added niobium or titanium for stabilization, can avoid the intergranular corrosion after welding.

National Standard
CHINA GB/T 20878-2007 S11972
019Cr19Mo2NbTi
(00Cr18Mo2)
AMERICA ASTM A240-15a S44400，444
JAPAN JIS G4305:2005[TJC STEEL] SUS444
GERMANY DIN EN 10088-2:1995 X2CrMoTi18-2
1.4521

Component Specification
GRADE GB：S11972
ASTM：444 SUS444 1.4521
C ≤0.025 ≤0.025[TJC STEEL] ≤0.025
Si ≤1.00 ≤1.00 ≤1.00
Mn ≤1.00 ≤1.00 ≤1.00
P ≤0.040 ≤0.040 ≤0.040
S ≤0.030 ≤0.030 ≤0.015
Ni ≤1.00 （≤0.60） --
Cr 17.5~19.5 17.0~20.0 17.0~20.0
Mo 1.75~2.5 1.75~2.5 1.8~2.5
N ≤0.035 ≤0.025 ≤0.030
Ti+Nb [0.2+4(C+N)]
~0.80 Ti、Nb、Zr or any combination thereof:
8(C+N) ~0.80 Ti:[0.15+4(C+N)]
~0.80

Material Characteristics:
(1) It has low content of carbon and nitrogen, and added about 2% molybdenum. Its resistance to chlorine ion pitting and stress corrosion cracking is better than 304, which is similar to 316L.
(2) Ferritic steels are the most [TJC STEEL]heat-resistant steels with excellent oxidation resistance at high temperature within 1000℃.
(23)Good thermal conductivity, easy to heat dissipation.
(4) less thermal expansion, small welding deformation.
(5) With the addition of stabilizing [TJC STEEL]elements, there is no intergranular corrosion in the weld zone.

Applications:
Typical applications are hot water tanks, solar water heaters, automotive exhaust systems, electric heaters and microwave components, brewing equipment, automotive trim strips, and outdoor panels.

​430F is a free cutting stainless steel, which is[TJC STEEL] made by adding free cutting sulfur element on the basis of 430.

National Standard
CHINA GB/T 1220-2007 Y10Cr17
(Y1Cr17)
AMERICA ASTM A582-2005 S43020
430F
JAPAN JIS G 4303-2005 SUS430F
GERMANY DIN EN 10088-1:2005[TJC STEEL] X6CrMoS17
1.4105

Component Specification
GRADE Y10Cr17 430F SUS430F 1.4105
C ≤0.12 ≤0.12 ≤0.12 ≤0.08
Si ≤1.00 ≤1.00 ≤1.00 ≤1.50
Mn ≤1.25 ≤1.25 ≤1.25 ≤1.50
P ≤0.06 ≤0.06 ≤0.040 ≤0.040
S ≥0.15 ≥0.15 ≥0.15 0.15~0.35
Cr 16.0~18.0 16.0~18.0 16.0~18.0 16.0~18.0
Mo (≤0.60) -- (≤0.60) 0.20~0.60
Ni (≤0.60) —[TJC STEEL] -- --

Mechanical Property
Density（g/cm3）20℃ 7.78
Melting point（℃） 1427~1510
Specific heat [kJ/(kg·K)] 0~100℃ 0.46
Heat conductivity [W/(m·K)][TJC STEEL] 100℃ 26.0
500℃
coefficient of linear expansion（10-6/K） 0~100℃ 10.4
0~500℃ 11.4
specific resistance（Ω·mm2/m）20℃ 0.60
longitudinal modulus of elasticity（kN/mm2）20℃ 200

Steel Grade Characteristics：
Compared with 430, adding sulfur makes 430F:
(1) easier to cut, good mechanical performance;
(2) reduce the corrosion[TJC STEEL] resistance;
(3) reduced solderability.
In addition, the 430F has similar mechanical properties to the 430, as well as:
(4) can not heat treatment;
(5) with ferromagnetism;
(6)The corrosion resistance is not as good as austenite.

Applications：
430F is a widely used free [TJC STEEL]cutting stainless steel, mainly used in the manufacture of high cutting volume automatic lathe machining parts, hydraulic parts, fasteners, sanitary and durable appliances, etc.

444 stainless steel is an ultra-low carbon and nitrogen, 18% chromium and 2% molybdenum, high corrosion resistance ferritic stainless steel, [TJC STEEL]steel added niobium or titanium for stabilization, can avoid the intergranular corrosion after welding.

National Standard
CHINA GB/T 20878-2007 S11972
019Cr19Mo2NbTi
(00Cr18Mo2)
AMERICA ASTM A240-15a S44400，444
JAPAN JIS G4305:2005[TJC STEEL] SUS444
GERMANY DIN EN 10088-2:1995 X2CrMoTi18-2
1.4521

Component Specification
GRADE GB：S11972
ASTM：444 SUS444 1.4521
C ≤0.025 ≤0.025[TJC STEEL] ≤0.025
Si ≤1.00 ≤1.00 ≤1.00
Mn ≤1.00 ≤1.00 ≤1.00
P ≤0.040 ≤0.040 ≤0.040
S ≤0.030 ≤0.030 ≤0.015
Ni ≤1.00 （≤0.60） --
Cr 17.5~19.5 17.0~20.0 17.0~20.0
Mo 1.75~2.5 1.75~2.5 1.8~2.5
N ≤0.035 ≤0.025 ≤0.030
Ti+Nb [0.2+4(C+N)]
~0.80 Ti、Nb、Zr or any combination thereof:
8(C+N) ~0.80 Ti:[0.15+4(C+N)]
~0.80

Material Characteristics:
(1) It has low content of carbon and nitrogen, and added about 2% molybdenum. Its resistance to chlorine ion pitting and stress corrosion cracking is better than 304, which is similar to 316L.
(2) Ferritic steels are the most [TJC STEEL]heat-resistant steels with excellent oxidation resistance at high temperature within 1000℃.
(23)Good thermal conductivity, easy to heat dissipation.
(4) less thermal expansion, small welding deformation.
(5) With the addition of stabilizing [TJC STEEL]elements, there is no intergranular corrosion in the weld zone.

Applications:
Typical applications are hot water tanks, solar water heaters, automotive exhaust systems, electric heaters and microwave components, brewing equipment, automotive trim strips, and outdoor panels.

​347 is a niobium-containing austenitic stainless steel and 347H is its high carbon version.From the composition, 347 can be seen as 304 [TJC STEEL]stainless steel on the basis of the addition of niobium element.Niobium, a rare earth element, has a similar effect to titanium in that it can refine grains, resist intergranular corrosion and promote aging hardening.

National Standard
CHINA GB/T 20878-2007 06Cr18Ni11Nb 07Cr18Ni11Nb
(0Cr18Ni11Nb) (1Cr19Ni11Nb)
AMERICA ASTM A240-15a S34700，347 S34709，347H
JAPAN JIS G 4304:2005 SUS 347 --
GERMANY EN 10088-1:2005[TJC STEEL] X6CrNiNb18-10 X7CrNiNb18-10
1.455 1.4912

Component Specification-347
GRADE 06Cr18Ni11Nb 347 SUS 347 1.455
C ≤0.08 ≤0.08 ≤0.08 ≤0.08
Si ≤1.00 ≤0.75 ≤1.00 ≤1.00
Mn ≤2.00 ≤2.00 ≤2.00 ≤2.00
P ≤0.045 ≤0.045 ≤0.045 ≤0.045
S ≤0.030 ≤0.030 ≤0.030 ≤0.015
Ni 9.0~12.0 9.0~13.0 9.0~13.0 9.0~12.0
Cr 17.0~19.0 17.0~19.0 17.0~19.0 17.0~19.0
Nb 10C~1.10 10C~1.00 ≥10×C% 10C~1.00
GRADE 07Cr18Ni11Nb 347H 1.4912
C 0.04~0.10 0.04~0.10 0.04~0.10
Si ≤1.00 ≤0.75 ≤1.00
Mn ≤2.00[TJC STEEL] ≤2.00 ≤2.00
P ≤0.045 ≤0.045 ≤0.045
S ≤0.030 ≤0.030 ≤0.015
Ni 9.0~12.0 9.0~13.0 9.0~12.0
Cr 17.0~19.0 17.0~19.0 17.0~19.0
Nb 8C~1.10 8C~1.00 10C~1.20

Component Specification-347H

 Physical Properties
Density（g/cm3）20℃ 8.03
Melting point (℃) 1398~1427
Specific Heat [kJ/(kg·K)]   0~100℃ 0.5
Heat Conductivity [W/(m·K)] 100℃ 16.3
500℃ 22.2
Coefficient of linear expansion（10-6/K） 0~100℃ 16.6
0~500℃ 18.6
Electrical resistivity（Ω·mm2/m）20℃ 0.73
Longitudinal modulus of elasticity（kN/mm2）20℃ 193
Magnetism[TJC STEEL] Slightly magnetic after cold deformation

Material Performance:
(1) Good corrosion resistance with 304 stainless steel.
(2) At 427~816℃, it can inhibit the formation of chromium carbide, resist sensitization, and have good intergranular c[TJC STEEL]orrosion resistance.
(3) In the high temperature of 816℃ strong oxidation environment, it still has a certain creep resistance.
(4) easy to extend and shape, easy to weld.
(5) Good low temperature toughness.

In general, the performance of 347 stainless steel is similar to 321 (304 plus Ti) but better than 321;Compared with 347, [TJC STEEL]347H has higher carbon content, and its creep resistance and high temperature strength are further strengthened.

Applications:
347&347H stainless steel has better high temperature performance than 304 and 321. It is widely used in aviation, petrochemical, food, paper and other industries, such as exhaust manifold and branch pipe of aero engine,[TJC STEEL] hot gas pipe of turbine compressor and parts working under low load and temperature not exceeding 850℃.

317&317L is an austenitic stainless steel containing molybdenum. Its corrosion resistance is better than 304&304L and [TJC STEEL]316&316L.

Component characteristics：
In terms of chemical composition, the contents of chromium, nickel and molybdenum in 317 are increased by 2%, 1% and 1% respectively on the basis of 316.Three elements are the main elements that determine the performance [TJC STEEL]of stainless steel.The value of 317 is higher than that of 304 and 316 in terms of pitting corrosion equivalent.

National Standard
CHINA GB/T 20878 06Cr19Ni13Mo3
(0Cr19Ni13Mo3) 022Cr19Ni13Mo3
(00Cr19Ni13Mo3)
AMERICA ASTM A240[TJC STEEL] 317, S31700 317L, S31703
JAPAN JIS G 4303 SUS 317 SUS 317L
GERMANY EN 10088-1 -- X2CrNiMo18-15-4
1.4438

Component Specification（317）
GRADE 06Cr19Ni13Mo3
SUS317（fit） 317 316
C ≤0.08[TJC STEEL] ≤0.08 ≤0.08
Si ≤1.00 ≤0.75 ≤0.75
Mn ≤2.00 ≤2.00 ≤2.00
P ≤0.045 ≤0.045 ≤0.045
S ≤0.030 ≤0.030 ≤0.030
Ni 11.0~15.0 11.0~15.0 10.0~14.0
Cr 18.0~20.0 18.0~20.0 16.0~18.0
Mo 3.0~4.0 3.0~4.0 2.0~3.0
N -- ≤0.10 ≤0.10

Component Specification（317L）
GRADE 022Cr19Ni13Mo3
SUS317L（fit） 317L 1.4438
C ≤0.03 ≤0.03 ≤0.03
Si ≤1.00 ≤0.75 ≤1.00
Mn ≤2.00 ≤2.00 ≤2.00
P ≤0.045 ≤0.045 ≤0.045
S ≤0.030[TJC STEEL] ≤0.030 ≤0.030
Ni 11.0~15.0 11.0~15.0 13.0~16.0
Cr 18.0~20.0 18.0~20.0 17.5~19.5
Mo 3.0~4.0 3.0~4.0 3.0~4.0
N -- ≤0.10 ≤0.11

The Performance Characteristics：
The corrosion resistance of 317 is similar to but superior to 316. The high molybdenum content ensures its overall and local corrosion resistance in most media, such as sulfuric acid, acid chlorine and phosphoric acid.317 is easily corroded in strong oxidizing acids such as nitric acid.
The performance of 317L is basically the same as that of 317.Due to lower carbon content, 317L has better welding [TJC STEEL]properties and intergranular corrosion resistance at high temperatures (427~816℃) than 317.

Applications：
317&317L is usually used in flue gas desulfurization system, chemical and petrochemical processing, food and beverage industry, petroleum refining, condenser of generator equipment, paper industry, etc.

​12Cr21Ni5Ti (1Cr21Ni5Ti) is a dual-phase stainless steel developed in the former Soviet Union.The steel is designed to save nickel instead of 1Cr18Ni9Ti, [TJC STEEL]but has better mechanical properties than the latter, especially higher strength.

Component specification（GB/T 20878-2007）
C 0.09~0.14 Ni 4.80~5.80
Si ≤0.80 Cr 20.00~22.00
Mn ≤0.80 Ti 5(C-0.02)~0.80
P ≤0.035[TJC STEEL] S ≤0.030

Corrosion Resistance
12Cr21Ni5Ti steel has good corrosion resistance in oxidizing acid and organic acid, and can be used instead of 1Cr18Ni9Ti steel.Because the steel contains stabilized element titanium and is a two-phase structure, there is [TJC STEEL]generally no tendency of intergranular corrosion.

Corrosion Rate Under Three Media Conditions
ambient condition T testing time corrosion rate
mm/a
65%HNO3 boiling 96~192h 0.5
10% oxalic acid boiling 96~192h 0.01
oxalic acid（10copies） boiling 22h[TJC STEEL] 5.6~7.1
+NaCl（1copies）
 
Welding Performance：
12Cr21Ni5Ti steel has good weldability and can be welded by various methods.The performance of the weld metal is similar to that of the base metal when the welding filler material with the same composition as the base metal is[TJC STEEL] used.For manual welding (SMAW), an 18-8 type austenitic stainless steel electrode without a stable element can also be used.

Cold And Hot Working Properties：
The cold and hot working properties of 12Cr21Ni5Ti steel are good.Thermal processing temperature range 1050 ~ 800℃.The best thermoplasticity occurs at 950 ~ 1050℃.Due to the higher yield strength, cold processing, especially pipe flares and sheet deep drawing are slightly worse than austenitic stainless steel, [TJC STEEL]but once the yield deformation, you can be smooth processing.

Applications:
12Cr21Ni5Ti steel can be used to replace 1Cr18Ni9Ti steel, mostly used to manufacture both oxidation resistance acid corrosion, and requires higher strength of equipment or components, used in the aviation industry for the [TJC STEEL]manufacture of aircraft engine shell and rocket engine combustion outdoor wall.

314 is an austenitic stainless steel. Due to its high silicon content and high [TJC STEEL]oxidation resistance, 314 is mainly used as a heat resistant steel.

National Standard
CHINA GB/T  1221-2007 16Cr25Ni20Si2
GB/T  4237-2007 (1Cr25Ni20Si2)
AMERICA ASTM  A276-2010 S31400
314
GERMANY DIN EN  10088-1-2005 X15CrNiSi25-21
DIN EN  10095-1999 1.4841
SEW 470[TJC STEEL]

Component Specification
GRADE 16Cr25Ni20Si2 314 1.4841
C ≤0.20 ≤0.25 ≤0.20
Si 1.50~2.50 1.50~3.00 1.50~2.50
Mn ≤1.50 ≤2.00 ≤2.00
P ≤0.040 ≤0.045 ≤0.045
S ≤0.030[TJC STEEL] ≤0.030 ≤0.015
Ni 18.0~21.0 19.0~22.0 19.0~22.0
Cr 24.0~27.0 23.0~26.0 24.0~26.0
N -- -- ≤0.11

Material performance：
(1) The oxidation resistance and carburizing resistance are better than 310S, and the toughness and solderability are slightly [TJC STEEL]worse than 310S.
(2)  The highest service temperature is 1200℃, the highest continuous use temperature is 1150℃, and the highest intermittent use temperature is 1050~1100℃.
(3) Sensitive to sulfur-[TJC STEEL]containing atmosphere, there is a precipitate embrittlement tendency at 600~800℃.
(4) good resistance to general corrosion performance.

​09CrCuSb -- Nd steel is a new type of low temperature dew point corrosion resistant steel with sulfuric acid which was jointly developed by Shanghai [TJC STEEL]Institute of Materials and Xingcheng Special Steel (formerly Jiangyin Steel Plant) during 1987-1990.
ND steel is a low alloy structural steel. Compared with other steels such as low carbon steel, Corten, Cr1A, etc., ND steel has excellent corrosion [TJC STEEL]resistance and mechanical properties.

Material standard
①GB 150.2-2011 "Pressure vessels -- Part 2: Materials"
②NB/T 47019-2011 "boiler, heat exchanger pipe ordering technical conditions"
③SH/T 3096-2012 "High Sour Crude Oil [TJC STEEL]Processing Equipment and Pipeline Design Material Selection Principles"

Component Specification（GB 150.2-2011）
C ≤0.12 Cr 0.70~1.10
Si 0.20~0.40 Cu 0.25~0.45
Mn 0.35~0.65 Sb 0.04~0.10
P ≤0.030 S ≤0.020

Mechanical Property
nominal thickness
(mm) strength of extension
Rm(MPa) Lower yield strength
ReL(MPa) elongation
A(%)
≤8 390~550[TJC STEEL] ≥245 ≥25

Corrosion Resistance
In the medium temperature and concentration test of sulfuric acid, Nd steel passivation due to dissolution, the surface of the steel formed a layer rich in Cu, Cr, Sb (antimony, sound: tī) and other alloy elements of the passivation [TJC STEEL]layer, and has a high sulfuric acid corrosion resistance.

▽Corrosion Rate Comparison between ND Steel and Other Steels (70℃-50%H2SO4 Solution)
type of steel corrosion rate
mg/(cm2h) multiple
ND 7.3 1
A3 103.5 14.18
Cast 63 8.63
CR1A 13.4 1.84
321 21.7 2.97
S-TEN 27.4[TJC STEEL] 3.75

For corrosion resistance, GB 150.2-2011 stipulates that corrosion resistance test shall be carried out on steel pipes. One sample shall be taken from each of two steel pipes in each batch, and each sample shall be a 10mm long pipe segment.It was soaked in H2SO4 solution with mass fraction of 50% at 70℃ (±2℃) for [TJC STEEL]24h.The average corrosion rate of the two samples is not more than 80g/m2×h or 140g/m2×h, the specific indexes are specified in the order contract.
Applications：
ND steel is the most ideal "low temperature dew point corrosion resistance of sulfuric acid" steel at home and abroad, its seamless steel pipe[TJC STEEL] is widely used in the manufacture of high sulfur flue gas service in the economizer, air preheater, heat exchanger and evaporator and other devices to resist the dew point corrosion of sulfur flue gas. 

430 is the representative of ferritic stainless steel, the density of 7.75g/cm3.Steel is widely used, second only to 304.The composition is [TJC STEEL]characterized by high chromium and nickel free.

National Standard
CHINA GB/T 20878-2007 10Cr17（原1Cr17）
AMERICA ASTM A240 / A240M - 16a
ASTM A276 / A276M - 17 S43000
430
JAPAN JIS G 4303:2012
JIS G 4304:2012 SUS430
GERMANY DIN EN 10088-1-2005 X6Cr17
1.4016[TJC STEEL]

Component Specification
GRADE 10Cr17 430 SUS430 1.4016
C ≤0.12 ≤0.12 ≤0.12 ≤0.08
Si ≤1.00 ≤1.00 ≤0.75 ≤1.00
Mn ≤1.00 ≤1.00 ≤1.00 ≤1.00
P ≤0.040 ≤0.040 ≤0.040 ≤0.040
S ≤0.030 ≤0.030 ≤0.030 ≤0.015b
Cr 16.0~18.0 16.0~18.0 16.0~18.0 16.0~18.0
Ni （≤0.60） ≤0.75a （≤0.60） --
A. Astm A276 bar profile standard, it is stipulated that this steel does not contain Ni element.
B. For bars, wires, profiles, bright [TJC STEEL]products and related semi-finished products, the maximum sulfur content is 0.030%.

The Performance Characteristics Of：
(1) Good corrosion resistance, corrosion resistance of general atmosphere and a variety of media.
(2) Low work hardening rate, easy to bend and forming processing.
(3) Good mechanical properties, [TJC STEEL]high temperature resistance and oxidation resistance up to 816℃.
(4) through the appropriate processing, such as bright annealing, mirror processing, can obtain a good surface and improve the corrosion resistance.
(5) poor weldability.Proper heat treatment shall be carried out before and after welding.
(6) Not adding nickel and molybdenum and [TJC STEEL]other precious alloys, with cost advantages.

Applications：
430 is a more economical choice than 304, steel has a series of advantages, low thermal expansion rate, excellent formability and [TJC STEEL]oxidation resistance, more used in general atmosphere or mildly corrosive environment, such as kitchen POTS, household appliances, automotive interior and exterior decoration, architectural decoration, etc..

​1Cr12Ni3MoVN (S/SJ2) is martensitic heat resistant steel, which is imported from Rolls-Royce Company in China.The vacuum-smelted [TJC STEEL]1Cr12Ni3MoVNA is codenamed S/SJV.
S/SJ2 steel is 12%Cr type low carbon martensitic heat resistant steel.Adding Mo, V and N to steel can improve the high temperature[TJC STEEL] performance of steel.The addition of Ni to steel is mainly used to equalize δ-phase free ferrite.

Component Specification（WS9-6503-96）
C 0.08~0.13 Cr 11.00~12.50
Si ≤0.35 Ni 2.00~3.00
Mn 0.50~0.90 Mo 1.50~2.00
P ≤0.030 V 0.25~0.40
S ≤0.020 N 0.020~0.040

The performance characteristics of：
S/SJ2 is similar to China's GX-8, mainly having the following three characteristics:
(1) It has obvious tempering brittleness [TJC STEEL]zone: 450~550℃.
(2) It has good comprehensive properties: plasticity, fatigue performance, endurance
performance, creep performance, corrosion resistance, weldability and formability.
Considering the metallographic structure, the steel is already on the martensitic-ferrite boundary. Therefore, the increase of any ferrite forming element will obviously affect the ferrite content in the steel, and have a bad effect on[TJC STEEL] the mechanical properties of the steel.
Applications：
S/SJ2 is usually in service at a temperature of about 500℃. It is used to manufacture high pressure casing, inlet casing, combustion chamber casing, diffusion casing, exhaust mixer, mounting edge, support seat, [TJC STEEL]high pressure 1~2 static blades and other components of Spey engine.

0Cr16Ni6 is a precipitation-hardened stainless steel with controlled phase transition.The steel has austenite and martensite structure after solid solution treatment when cold to room temperature, and has good hot working property and cold deformation.[TJC STEEL] It is transformed into martensite structure through cold treatment or cold deformation, and then gets high strength after aging treatment.

Component Specification（C1J15-1990）
C 0.05~0.09 Cr 15.00~17.00 Ti ≤0.05
Si 0.30~0.80 Ni 5.00~7.50 N ≤0.10
Mn 0.30~0.80 P ≤0.030[TJC STEEL] S ≤0.020

Heat treatment system (C1J15-1990)
① Solid solution treatment (1000±10℃×30min, < 30℃ water cooling);
② cryogenic treatment (-70~-80℃×2h);
③ Tempering (420±10℃×1h), air cooling.
The hardness after the whole [TJC STEEL]heat treatment: room temperature HRC40~48.

The performance USES:
0Cr16Ni6 notch sensitivity is low, is not sensitive to hydrogen embrittlement, and has good stress corrosion resistance;It has stable oxidation resistance in the air medium below 420℃ and in the atmosphere of aviation fuel [TJC STEEL]combustion products.It is mainly used to manufacture aircraft and engine stress components working below 450℃ and other important parts working in atmosphere, acetic acid and salt medium.

​06Cr13, the American standard 410S, is the lowest carbon content in the Cr13 martensitic stainless steel.Due to the microstructure of[TJC STEEL] the matrix under annealing condition, it is also classified as ferritic stainless steel in a few standards.

Standard Control
CHINA GB/T 20878-2007 S41008 06Cr13
（0Cr13）
GB/T 24511-2009 S11306
AMERICA ASTM A240-15a S41008,410S
JAPAN JIS G 4304:2005 SUS410S
GERMANY DIN EN 10088-2:1995[TJC STEEL] X6Cr13,1.4000

Component Specification
GRADE 06Cr13* 410S SUS410S 1.4000
C ≤0.08 ≤0.08 ≤0.08 ≤0.08
Si ≤1.00 ≤1.00 ≤1.00 ≤1.00
Mn ≤1.00 ≤1.00[TJC STEEL] ≤1.00 ≤1.00
P ≤0.040 ≤0.040 ≤0.040 ≤0.040
S ≤0.030 ≤0.030 ≤0.030 ≤0.015
Cr 11.5~13.5 11.5~13.5 11.5~13.5 12.0~14.0
Ni (≤0.60) ≤0.60 (≤0.60) --
*：S41008 is listed in the table, while S11306 is slightly different in composition.

Mechanical Property
Density（g/cm3）20℃[TJC STEEL] 7.75
Specific heat [kJ/(kg·K)]  0~100℃ 0.46
Heat conductivity [W/(m·K)] 100℃ 25.0
coefficient of linear expansion（10-6/K） 0~100℃ 10.6
0~500℃ 12.0
specific resistance（Ω·mm2/m）20℃ 0.60
longitudinal modulus of elasticity（kN/mm2）20℃ 220
magnetism Y

Mechanical Property

Dimensions of sample hairs（mm） ≤75
heat treating regime anneal[TJC STEEL] 800 ~ 900 ℃ slow cooling
Or about 750℃ fast cooling

quench 950 ~ 1000 ℃ cold oil
temper 700~750℃cold oil
Mechanical properties 
(quenching + tempering)
Specified non-proportionality
Extension strength MPa ≥345
strength of extension MPa ≥490
Percentage elongation after fracture % ≥24
Percentagereduction of area; reduction of area ≥60
The hardness of delivery HBW anneal ≤183

Material Characteristics:
(1) The corrosion resistance and corrosion resistance are similar to 1Cr13 (410) and better, in low concentration of mild organic and [TJC STEEL]inorganic acid, alkali and some chemical conditions have corrosion resistance.
(2) Good oxidation resistance, sustainable use in 705℃ environment.
(3) good plastic toughness, easy to be formed by rotation, bending and rolling.
(4) It can be welded by common fusion and resistance technology.

Applications:
The main product form [TJC STEEL]is plate, used for structural parts such as automobile muffler and exhaust system components, but also widely used in containers, heat exchangers, underground pipes, etc.

3Cr17Ni7Mo2N, austenitic stainless steel, codename 318, was developed in 1968 by Shanghai Research Institute of Materials, Shanghai No. 5 Iron and Steel Works, Chongqing Steel Works, Sichuan Petroleum Management and Design Institute [TJC STEEL]jointly for the Sichuan gas field natural gas contains more hydrogen sulfide, which causes serious corrosion to the equipment.

Component Specification
C 0.22~0.30 Cr 16.00~18.00 Ni 6.00~8.00
Si 0.80~1.60 P ≤0.035 Mo 2.00~2.50
Mn ≤1.00 S ≤0.30[TJC STEEL] N 0.15~0.22

 Mechanical Property
solution heat treatment 1130℃±10℃, holding for 2h, water quenching
strength of extension MPa ≥785
yield MPa ≥420
percentage elongation after fracture % ≥35
reduction of area% ≥40
hardness HRC ≤24

Material performance:
318 is a low cost material developed for hydrogen sulfide corrosion resistance. It can resist hydrogen sulfide uniform corrosion, sulfide stress cracking resistance, hydrogen embrittlement resistance, pitting resistance, reducing [TJC STEEL]medium corrosion resistance.

Applications:
The 318 is typically used to manufacture sulfur [TJC STEEL]resistant wellheads, valves, stems, and fasteners for applications where H2S partial pressures exceed 1MPa.