Material
Stainless Steel 321
Stainless Steel 321 is a titanium-stabilized austenitic alloy that is engineered to resist intergranular corrosion during welding and sustained high-temperature service.
Manufacturing processes
About
Stainless Steel 321 is a titanium-stabilized version of Stainless Steel 304. Titanium binds with carbon to prevent chromium carbide forming at grain boundaries, giving it superior resistance to intergranular corrosion after welding or exposure between roughly 425-900 °C, with continuous service up to about 815 °C.
General corrosion resistance is similar to 304, but it performs poorly in chloride or marine environments, and it doesn't polish well, so it isn't suited for decorative finishes.
Stainless Steel 321 is best suited to exhaust manifolds, expansion joints, furnace components, and other high-temperature or welded assemblies.
Technical Details
- Accuracy
- ±0.2% (lower limit of ±0.13 mm)
- Density
- 7.9 g/cm³
- Min. wall thickness
- -
Technical Properties
- Tensile strength
- 515 - 700 MPa
- Tensile modulus
- 180000 - 193000 MPa
- Tensile elongation
- 40%
- Embossing
- min. 0.3 mm
- Engraving
- min. 0.3 mm
- Warping risk
- N/A