Performance Metals Australia- High Performance Metal Suppliers
321 Stainless Steel Sheet
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Type 321 is an "18-8" chromium-nickel stainless steel modified by the addition of titanium to overcome the danger of intergranular corrosion, common to other austenitic stainless steels during or after exposure to temperatures of 800°F. This type is non-magnetic in the annealed condition and not hardenable by heat treatement. It is manufactured by the electric furnace process to meet the rigid requirements of the aircraft industry
- American Specifications:
- ASTM A167, ASTM A240, AMS 5510, QQ-S-766
- British Specifications:
- 321 S 31, 321 S 51, lw24, LWCF 24
- Applications:
- Used where freedom from intergranular corrosion is desired and milder corrosive conditions exist. It is used in parts subjected to sustained heating in, or slow cooling through, the range of 800ºF - 1500ºF. It is well suited for cold drawing and forming operations. In aircraft, it is used particularly for such applications as exhaust stacks, manifolds, and ring collectors
- Size Range:
- .012" [30 ga] - .156" [9ga] (.3mm - 4mm)
| Typical Mechanical Properties | ||
|---|---|---|
| Annealed | Normalized | |
| Tensile Strength (ksi) | 85 max | 90-95 min |
| Yield Point (ksi) | - | 70-75 |
| Elongation (% in 2") | - | 18-Aug |
| Typical Chemical Analysis | |
|---|---|
| C | .08 max |
| Mn | 2.00 max |
| P | .040 max |
| S | .030 max |
| Si | 1.00 max |
| Cr | 17.0 - 19.0 |
| Ni | 9.00 - 12.00 |
| Ti | 6xC - .70 |
| Cu | .75 max |
| Mo | .75 max |
Please note, this information is to be used as a guide only, for more specific information please
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