321 Stainless Steel is an austenitic chromium-nickel stainless steel containing Titanium which is recommended for parts fabricated by welding which cannot subsequently be annealed. 321 Stainless Steel is a stabilized austenitic stainless steel similar to ss 304 but with a titanium addition. This titanium addition reduces or prevents carbide precipitation during welding and in 800 - 1500 °F (427 - 816 °C) service. It also improves the elevated temperature properties of the alloy. 321 Stainless Steel provides excellent resistance to oxidation and corrosion and possesses good creep strength.
| GB | JIS | ASTM | DIN EN/DIN | NF EN/NF | EN | GOST | SS | BS EN/BS |
| 0Cr18Ni10Ti | SUS321 | 321 | X10CrNiTi18-9 | Z6CNT18-10 | X6CrNiTi18-10 | 08KH18N10T | 2337 | 321S31 |
| 1Cr18Ni11Ti | X6CrNiTi18-10 | 08KH18N12T | ||||||
| H0Cr20Ni10Ti | 12KH18N10T |
Type 321 Stainless Steel Chemical Composition
| UNS | Grades | C | Mn | P | S | Si | Cr | Ni | Mo | N | Cu | EF |
| S32100 | 321 (1Cr18Ni10Ti) | 0.08 | 2 | 0.045 | 0.03 | 0.75 | 17.0-19.0 | 9.0-12.0 | … | 0.1 | … | Ti:5(C+N)min, |
| Property | Density, lb/in3 | Modulus of Elasticity, psi | Coefficient of Thermal Expansion, 68-212˚F, /˚F | Thermal Conductivity, Btu/ft hr ˚F | Specific Heat, Btu/lb ˚F | Electrical Resistivity, Microohm-in |
| 321 Data | 0.286 | 28.0 x 106 | 9.2 x 10-6 | 9.3 | 0.12 | 28.4 |
Useful in the chromium carbide precipitation range (800-1500°F, 427-815°C)
Aircraft exhaust stacks
Manifolds
Chemical processing equipment
Welded equipment
Jet engine parts
Heat Exchangers
Expansion joints
Qinghe Steel is a full line supplier and processer of stainless steel coil, sheet, plate, bar, and strip products. We stock many grades of stainless steel, including 300 and 400 series stainless, annealed and in various tempers and high temperature grades, for shipments worldwide. View our steel center here
