Nickel & chromium-nickel casting alloys
CW12MW (UNS N30002) chemical composition
Nickel-base casting alloy CW12MW (Hastelloy C)
Nickel-base Ni-Mo-Cr-W casting alloy of the Hastelloy C type. Resists both reducing and oxidising acids and chloride pitting; normally supplied solution annealed, for pump casings, impellers and valve bodies in chemical processing.
- Designation
- CW12MW
- Material no.
- UNS N30002
- Standard
- ASTM A494
- Also known as
- ≈ Hastelloy C (cast)
- Family
- Nickel & chromium-nickel casting alloys
Chemical composition (mass %)
| Element | min | max |
|---|---|---|
| CCarbon | – | 0.12 |
| SiSilicon | – | 1.00 |
| MnManganese | – | 1.00 |
| PPhosphorus | – | 0.03 |
| SSulphur | – | 0.02 |
| CrChromium | 15.5 | 17.5 |
| MoMolybdenum | 16.0 | 18.0 |
| VVanadium | 0.20 | 0.40 |
| WTungsten | 3.75 | 5.25 |
| FeIron | 4.50 | 7.50 |
| NiNickel | remainder | |
Basis of values: Limits per ASTM A494.
We cast CW12MW
We cast these nickel-base and chromium-nickel alloys to the ordered standard, with spectrometer analysis of every melt, heat treatment, CNC machining in our own machine shop and EN 10204 3.1 certificates.
- Sand casting at our foundry in Mandra, Attica; centrifugal casting for bushings, sleeves and liners
- Heat treatment at the foundry (water, oil or air quench); CNC machining in our machine shop in Perama
- Spectrometer analysis of every heat, mechanical testing and NDT
- EN 10204 3.1 inspection certificates; ISO 9001 (both plants) and ISO 14001 (foundry) certified
Other grades in this family
For information only, without warranty: limits per the cited standard or, where stated, typical or house values; ≈ marks a comparable grade, not an equivalent. The current edition of the standard, the purchase order and the drawing govern.