N08120 Alloy/ HAYNES HR120 is one kind of alloys with extremely high temperature strength and anti-carburizing and anti-curing. N08120 Alloy has good resistance to industrial environment performing with solid solution strengthened heat resistant. Besides, this alloy offers excellent oxidation resistance and is comparable to any of the widely used Fe-Ni-Cr alloys, such as 300 series stainless steel, 800H [TJC STEEL]and 800HT.  Its strength is significantly higher at 1095°C, even compared to ni-Cr alloy.  N08120 Alloy/ HAYNES HR120 can be formed by cold and hot processing. When welding, Hastelloy X or HAYNES 556 cases are selected as welding materials according to the performance requirements.  
 
N08120/ HAYNES HR120 Alloy’s oxidation resistance is comparable to that of other widely used Fe-Ni-Cr materials (such as 330 and 800H alloys), but still has high strength at temperatures up to 2000ºF (1095ºC) degrees.  [TJC STEEL]It is significantly higher even when compared to Ni-Cr alloy.  The alloy is usually welded using a HAYNES 556 filler wire.  

Chemical Composition（%）
C（%）：0.02~0.10
Si（%）：≤1.00
Mn（%）：≤1.50
P（%）≤：0.035
S（%）≤：0.030
Cr（%）：23.0~27.0
Ni（%）：35.0~39.0
Mo（%）：≤2.50
Nb（%）：0.40~0.90
Ti（%）：≤0.20
Cu（%）：≤0.50
Al（%）：≤0.40
N（%）：0.15~0.30
B（%）：≤0.010

Physical Property：

GRADE DATA
HAYNES HR120 ROOM TEM 1000℃
DENSITY 8.07
MELTING POINT/℃ 1300
THERMAL CONDUCTIVITY/[W/(m.k)] 11.4 28
THERMAL DIFFUSION /(cm²/s) 30.4*0.01 50.7*0.01
MASSIC HEAT CAPACITY/[J(KG.K][TJC STEEL] 476 663
ELASTICITY MODULUS/GPa 197 128
THERMAL EXPANSIVITY /[m/(M.℃] 14.3 17.8

Mechanical Property：
GRADE DATA/MPa
HAYNES HR120 ROOM TEM 1000℃
TENSILE STRENGTH 734 104
YIELD STRENGTH[TJC STEEL] 314 62.7
ELONGATION 50% 89%

​S690Q is used in the manufacture of low temperature resistant, high strength key components, construction machinery, mining machinery structure, etc., [TJC STEEL]is a high strength structural steel plate.  
 
Execution Standard  
GB/T16270-2009  
 
Mechanical Properties
Yield strength σ0.2 ≥690-≥650 MPa  
 
Relevant Series Steels with S690Q
S590Q, S690Q, S690Q, S690QL,[TJC STEEL] S690QL1, WQ690D, Q550D, WQ590D, WH70Q, WDB620E, WH785E  
 
Chemical Composition  
Element content - [maximum %]  
The maximum values of Cu, Mo, Nb, Ni, Ti, V and Zr are 0.50, 0.70, 0.06, 2.0, 0.05, 0.12 and 0.15 respectively[TJC STEEL]  
 
Execution Standard  
EN10025-6, GB/T16270-2009  
 
Application
S690Q is used in the manufacture of low temperature resistant, high strength key components, construction machinery, mining machinery structure, etc., is a high strength structural steel plate.  
 
Mechanical Properties
S690Q: yield strength σ0.2 ≥690-≥650 MPa, S690Q: tensile strength σ B 770-940mpa, S690Q: elongation ≥14 δ 5%, S690Q: [TJC STEEL]-20℃V type impact energy longitudinal ≥30J.  

Delivery Status: Controlled rolling or Normalizing.  
Material: A573Gr70.  
Grade: A573Gr58, A573Gr65, A573Gr70, three quality grades.  
Implementation Standard: American[TJC STEEL] Society for Materials and Testing standard, ASTM A573/A573M.  
Technical Conditions: the chemical composition and mechanical properties of this steel are omitted. When ordering, additional impact, flaw detection, Z direction, composition control and performance requirements beyond the [TJC STEEL]standard can be added.  

Chemical Composition:(%)
Element Max %
C 0.27-0.28
Mn 0.85-1.20
P 0.035
S 0.004
Si[TJC STEEL] 0.15-0.40

Mechanical Property:
A573Gr70 Tensile Strength Mpa Yield Strength Mpa Elongation, Min %,A
485-620 290 18

Application:
Carbon - Fierce - Silicon steel [TJC STEEL]plate is mainly used to improve notch toughness at room temperature.  

​SCM435 has high static strength, impact toughness and high fatigue limit, higher hardenability than 40Cr, high creep strength and durable strength at high temperature, long-term working temperature can reach 500℃;  [TJC STEEL]Cold deformation plastic medium, poor weldability.  Important structural parts used for working under high load, such as transmission parts of vehicles and engines;  Turbine generator rotor, spindle, heavy load transmission shaft, large section parts.  
 
 
Species  
Alloy Structural Steel: SCM435  
Implementation Standard: JIS G4053-2008  
 
Chemical Composition of SCM435  
C: 0.33 ~ 0.38 Si: 0.15 ~ 0.35  
Manganese Mn: 0.60 ~ 0.90  
Sulfur S: Allowable [TJC STEEL]residual content ≤0.030  
Phosphorus P: Allowable residual content ≤0.030  
Cr: 0.90 ~ 1.20  
Nickel Ni: Permissible residual content ≤0.25  
Cu Cu: Permissible residual content ≤0.30  
Mo: 0.15 ~ 0.30  
 
SCM435 Standard  
SCM435 standard :SCM435 [TJC STEEL]is the Japanese standard (JIS G4053-2008) steel, the domestic corresponding steel 35CrMo  
 
SCM435 Hardness  
The hardness of SCM435 is HRC36 ~ 43, HB269 ~ 341  
 
Mechanical Properties of SCM435 
Tensile Strength (MPa) : ≥985(100)  
Yield Strength σs (MPa) : ≥835(85)  
Elongation δ5 (%) : ≥12  
Section Shrinkage rate ψ (%) : ≥45  
Impact Energy Akv (J) : ≥63  
Impact Toughness αkv (J/cm²)  A: 78 (8) or  
Hardness: 229 hb or less  
Sample Size: [TJC STEEL]sample blank size is 25mm  
 
Heat Treatment Specification  
Heat Treatment Specification: quenching 850℃, oil cooling;  Tempering 550℃, water cooling, oil cooling.  
Delivery Status: heat treatment (normalizing, annealing or high temperature tempering) or no heat treatment, delivery [TJC STEEL]status should be indicated in the contract.  Annealing no.1 "annealing at 760±10℃, furnace cooling to 400℃ air cooling.  
HB220-230  
860±10℃ normalize, air cooling out of the oven.  
Quenching water or oil (depending on the complexity of product type), 680-700 degrees tempering.  HB<217  
Quenching oil at 840±10℃ and then tempering at 470 ℃.  HRC41-45  
Quenching oil at 840±10℃ and then tempering at 480 ℃.  HRC35-45  
Tempering +tempering No.8 quenching oil at 850℃ and tempering at 510 ℃.  HRC38-42  
Tempering +tempering No.9 quenching oil at 850℃ and then tempering at 500 ℃.  HRC40-43  
Tempering +tempering [TJC STEEL]No.10 quenching oil at 850℃ and tempering at 510℃.  HRC36-42  
Quenching oil at 850℃ and then tempering at 560℃.  HRC32-36  
Oil quenching at 860℃ and tempering at 390 ℃.  HRC48-52  
 

SCM440 is a commonly used steel for the production of high strength fasteners. The products have the advantages of stable composition, low harmful elements, high purity of steel, small decarburization layer, [TJC STEEL]less surface defects and so on. When used, it is easy to conduct spherospherification annealing, low cold heading cracking rate, stable heat treatment quality, uniform hardness, widely used in the engine, mold and other industries.  
 
Material Name: Alloy Structural Steel  
Brand: SCM440(Japanese [TJC STEEL]brand, see JIS G4053-2008, similar to Chinese brand 42CrMo)  
Corresponding: 42 crmo4  
Features and Scope of Application:  
It is a medium hardenability steel. After heat treatment, it has good strength and comprehensive mechanical properties, good technology and high yield.  The highest operating temperature is 427℃.  Used as steam turbine fasteners.  
 
Characteristics and Application  
1. Good quenching, deep quenching can be carried out, rather than the surface quenching of anti-saw lock on the market  
2. Less tendency to temper brittleness  
3. High temperature [TJC STEEL]processing, beautiful after processing  
4. Good welding performance  
5 impact absorption performance is good, hammer hit up will have a rebound feeling, can not be violent damage advantages:  
(1) Good processability  
(2) Good shock absorption performance  
(3) Easy to weld  
 
Chemical Composition  
0.38 0.43 C  
Si, 0.15 to 0.35  
Mn, 0.60 to 0.85  
P 0.03 or less  
S 0.03 or less  
Cu 0.30 or less  
Ni 0.25 or less  
Cr 0.90 to 1.20  
MO, 0.15 to 0.30  
Ni 0.25 or less  
Cu 0.30 or less  
 
Mechanical properties of SCM440  
Tensile strength σb (MPa) : ≥1080(110) Yield [TJC STEEL]strength σs (MPa) : ≥930(95)  
Elongation δ5 (%) : ≥12  
Section shrinkage rate ψ (%) : ≥45  
Impact energy Akv (J) : ≥63  
Impact toughness αkv (J/cm²)  A: 78 (8) or  
Hardness: 217 hb or less  
Sample size: sample blank size is 25mm  
 
Heat Treatment Specification and Metallographic Structure  
Heat treatment specification: 880℃,1h oil quenching, 650-680 ℃, 2H tempering, air cooling.  
Metallographic structure: tempered martensite.  
 
Heat treatment Process  
Annealing no.1 "annealing at 760±10℃, furnace cooling to 400℃ air cooling.  
HB220-230  
860±10℃ normalize, air cooling out of the oven.  
Quenching water or oil (depending on the complexity of product type), 680-700 degrees tempering.  HB<217  
Quenching oil at 840±10℃ and then tempering at 470 ℃.  HRC41-45  
Quenching oil at 840±10℃ and then tempering at 480 ℃.  HRC35-45  
Tempering +tempering No.8 quenching oil at 850℃ and tempering at 510 ℃.  HRC38-42  
Tempering +tempering No.9 [TJC STEEL]quenching oil at 850℃ and then tempering at 500 ℃.  HRC40-43  
Tempering +tempering No.10 quenching oil at 850℃ and tempering at 510℃.  HRC36-42  
Quenching oil at 850℃ and then tempering at 560℃.  HRC32-36  
SCM440  
Oil quenching at 860℃ and tempering at 390 ℃.  HRC48-52 42 crmo round rods