Corrosion Resistant
| Alloy | ASTM | AISI | Cr% | Ni% | Other | Description |
|---|---|---|---|---|---|---|
| CA-15 | A351 A487 A743 |
410 | 12 | 1 | Widely used in mildly corrosive environments; hardenable, good erosion resistance | |
| CA-40 | A743 | 420 | 12 | 1 | Similar to CA-15 at higher strength level | |
| CA-6NM | A487 A743 |
12 | 4 | Mo .7 | Improved properties over CA-15, especially improved resistance to cavitations | |
| CF-3 | A743 A351 |
304L | 19 | 10 | CF types most widely used corrosion resistant alloys at ambient and cryogenic temperatures | |
| CF-8 | A743 A351 |
304 | 19 | 9 | CF types most widely used corrosion resistant alloys at ambient and cryogenic temperatures | |
| CF-3M | A743 A351 |
316L | 19 | 11 | Mo 2 | Enhanced resistance to halogen ion and reducing acids |
| CF-8M | A743 A351 |
316 | 19 | 9 | Mo 2 | Enhanced resistance to halogen ion and reducing acids |
| CF-8C | A351 | 347 | 19 | 9 | Used where application does not permit post-weld heat treat | |
| CG-8M | A743 A351 |
317 | 19 | 11 | Mo 3 | Greater resistance to pitting and corrosion in reducing media than CF-8M |
| CH-20 | A743 A351 |
309 | 13 | 24 | Superior to CF-8 in specialized chemical and paper applications in resistance to hot H2SO3 organic acids and dilute H2SO4 | |
| CK-20 | A743 A351 |
310 | 25 | 20 | Improved corrosion resistance compared with CH-20 | |
| CN-7M | A743 A351 |
20 | 29 | Mo 2 Cu 3 |
Highly resistant to H2SO4, H3PO4 and H2SO3, salts, seawater | |
| CY-40 | A494 | 15 | 74 | Fe 10 | Superb corrosion resistance over widest temperature range; virtually immune to chloride SCC |
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