Type 321 is an austenitic chromium-nickel stainless steel containing Titanium which is recommended for parts fabricated by welding which cannot subsequently be annealed. Type 321 is a stabilized austenitic stainless steel similar to type 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. Type 321 provides excellent resistance to oxidation and corrosion and possesses good creep strength.
Application Of 321 Stainless Steel Wire
Property of 321 Stainless Steel Wire
| Element | Min % | Max % |
| C | – | 0.08 |
| Mn | – | 2 |
| P | – | 0.04 |
| S | – | 0.03 |
| Si | 0.4 | 1 |
| Cr | 17 | 19 |
| Ni | 9.5 | 12 |
| N | – | 0.1 |
| Mo | – | 0.5 |
| Ti | 5 x C | 0.7 |
| Fe | BAL |
| Type | Tensile Strength, ksi (MPa) | Yield Strength | Elongation in 10 in. (254 mm) , %, min | Reduction of Area, %, min | Condition |
| 321 | 90 (620) | 45 (310) | 30 | 40 | cold finished |
| 75 (520) | 30 (210) | 35 | 50 | annealed |
Package Of 321 Stainless Steel Wire
