321 stainless steel

321 stainless steel forgings are critical for high-temperature and corrosive environments, combining titanium stabilization, oxidation resistance, and mechanical durability. Their compliance with stringent international standards ensures reliability in aerospace, energy, and chemical industries.

Descriptions

1. Chemical Composition

The titanium content in 321 stainless steel (≥5×C% by weight) stabilizes the alloy against sensitization. Below is the detailed chemical composition:

2. Mechanical Properties

321 stainless steel forgings exhibit excellent mechanical properties at both room temperature and elevated temperatures. Typical values in the annealed condition are:

3. Common Forging Product

Forged Flanges

Forged Valves

Forged Pipe Fittings

Forged Shafts

Forged Turbine Blades

4. Industry standards

Standard	Scope
ASTM A182/A182M	Forged fittings, flanges, and valves.
ASTM A473	Stainless steel forgings (general).
ASME SA182/SA182M	ASME Boiler and Pressure Vessel Code.
EN 10088-3	Technical delivery conditions for bars, rods, and wire.
AMS 5510	Aerospace-grade sheet, strip, and plate.
GB/T 1220 (China)	Stainless steel bars (Chinese standard).