This specification covers iron-chromium-nickel alloy, stainless steel castings intended for particularly severe corrosive applications.This specification requires postweld heat-treatment of all weld repairs affecting surfaces intended to be wetted by the corrosive medium. For applications for which postweld heattreatment is not considered mandatory for retention of acceptable corrosion resistance.
| Grades | UNS | Type |
|---|---|---|
| CF8 | J92600 | 19 Chromium, 9 Nickel |
| CF8M | J92900 | 19 Chromium, 10 Nickel, with Molybdenum |
| CF8C | J92710 | 19 Chromium, 9 Nickel |
| CF3 | J92500 | 19 Chromium, 9 Nickel |
| CF3M | J92800 | 19 Chromium, 10 Nickel, with Molybdenum |
| CG3M | J92999 | 19 Chromium, 11 Nickel with Molybdenum |
| CG8M | J93000 | 19 Chromium, 11 Nickel, with Molybdenum |
| CN7M | N08007 | 20 Chromium, 29 Nickel, with Copper and Molybdenum |
| CN7MS | J64650 | 19 Chromium, 24 Nickel, with Copper and Molybdenum |
| CN3MN | J94651 | 21 Chromium, 24 Nickel with Molybdenum and Nitrogen |
| CK3MCuN | J93254 | 20 Chromium, 18 Nickel, with Copper and Molybdenum |
| CN3MCu | J80020 | - |