321H stainless steel is an kind of stainless steel with high corrosion resistance and Has excellent high temperature performance.

The application of 321H stainless steel: Boiler shell, heat exchanger, Silencer Parts for Diesel Engines, Boiler pressure vessel, Chemical vehicle, Expansion Joints, Spiral welded pipes for furnace pipes and dryers and so on.

chemical composition:
 

Carbon C: 0.04~0.10

Manganese Mn: ≤ 2.00

Silicon Si:≤0.75

Chrome Cr: 17.0 to 19.0

Nickel Ni2: 9~12.0

Phosphorus P: ≤ 0.045

Sulfur S: ≤ 0.03

Titanium Ti:4*(C+N)~0.70

Mechanical properties:
 

Tensile strength σb (MPa): ≥515

Conditional yield strength σ0.2 (MPa): ≥205

Elongation δ5 (%): ≥40

Hardness: ≤217HB;