321H Stainless Steel- TJC STEEL.
321H stainless steel has good corrosion resistance, especially in oxidizing medium has good corrosion resistance. Because of its good heat resistance and oxidation resistance, it is more used as a heat resistant steel. Comparing with 321 Stainless steel, [TJC STEEL]321H has higher Carbon content and similar properties with 321 Stainless.
A. 321H Corresponding Brand:
1, GB GB-T standard: digital brand number: S32169, new brand number: 07Cr19Ni11Ti, old brand number: 1Cr18Ni11Ti;
2, American standard: ASTM standard: [TJC STEEL]S32109, UNS standard: 321H;
3, JIS standard: SUS321HTB;
4, DIN standard: 1.4940,1.4541;
5, European standard EN standard: "X8CrNiTI18-10, X7CrNiTI18-10;
6, NF standard: /;
7, British BS standard: 321S20.
B. 321H Stainless Steel Chemical Composition:
⑴ carbon C: 0.04~0.10⑵ silicon Si: ≤0.75, [TJC STEEL]⑶ manganese Mn: ≤2.00, ⑷ phosphorus P: ≤0.030, ⑸ sulfur S: ≤0.030,[TJC STEEL] ⑹ chromium Cr: 17.00 ~ 20.00, ⑺ nickel Ni: 9.00 ~ 13.00, other elements: Ti≥4C~0.60.
C. 321H Stainless Steel Physical Properties:
Density Density (20℃) /kg/dm3:"8.03,, magnetism: none.
D. 321H Stainless Steel Mechanical Properties:
(1) Delivery status: solid solution treatment of bar, solid solution pickling of plate;
⑵ Tensile strength (RM/MPa) 520;
⑶ Elongation strength[TJC STEEL] (Rp0.2/MPa) : 205;
⑷ Elongation A/% : 40;
⑸ Area shrinkage (Z/%) : 50.
E. 321H Stainless Steel Heat Treatment:
1. Hardness HBW≤ : solution 187, hardness HRB≤ : 90;
2. Heating temperature: 920~1150;
3. Heating method: fast cooling.
321H Stainless Steel’s Application:
321H Stainless Steel is [TJC STEEL]widely used for boiler superheater, heat exchanger, condenser, catalytic tube, cracking tube device and other steel tubes and fittings.
GS-25CrNiMo4 alloy is one kind of special Cr-Ni-Mo Alloy which is suitable used under the environment with temperature up to 300℃[TJC STEEL].
Chemical Composition for GS-25CrNiMo4 Alloy:
Ni(％):0.80-1.20 [TJC STEEL]
Mechanical Property for GS-25CrNiMo4 Alloy:
Proof Strength Rp0.2(MPa):350-400
Tensile Strength Rm(MPa):650-850
Impact Energy KV(J):24
Elongation at Fracture A(%):21
Reduction in Cross [TJC STEEL]section on Fracture Z(%):43
As-Heat-Treated Conditions:Solution and Aging,Annealing,Ausaging,Q+T,etc
For Moe Infos about GS-25CrNiMo4, pls feel free to contact us.
I. Introduction of 12Ni14 Nickel Alloy Plate
12Ni14 is a boiler pressure vessel steel plate, using the European standard brand, 12Ni14 is a nickel alloy steel plate used in pressure equipment, [TJC STEEL]the common brand of European standard container plate are: HII/P265GH P275NH P275NL P355GH P355NH P355NH P355NL1 P460NH 16Mo3, etc
2. The Implementation Standard of 12Ni14 Steel Plate: EN10028-4(Hot Rolled Type), EN10222-2( Forged Type)
3. Delivery Status of 12Ni14 Steel Plate:
The steel plate is usually delivered by normalizing, [TJC STEEL]normalizing and tempering, quenching and tempering
4. Chemical Composition of 12Ni14(%):
Mn: 0.30-0.80[TJC STEEL]
5.Mechanical Property of 12Ni14 Alloy:
[GRADE] [DELIVERY STATUS] [THICKNESS
/MM] [YIELD STRENGTH
/MPa] [TENSILE STRENGTH/MPa] [ELONGATION/% MIN.]
/ EN10222-3 12Ni14] [N/N+T/Q+T] [≤30] [≥355] [490-640] 
6. Main Applications of 12Ni14 Alloy:
12Ni14 is one kind of nickel [TJC STEEL]alloy materials for pressure equipment especially under low temperature, mainly used in building of pressure equipment, boiler, pressure vessel, LNG tanks, etc.
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