CuAl9Ni3Fe2
CC331GStandard aluminum bronze casting alloy — 9% Al, lower Ni (3%) and Fe (2%) than CuAl10Ni5Fe4 (NAB). Good strength and corrosion resistance at lower cost than NAB. Used for valve bodies, pump casings, bearing bushings, and marine fittings where NAB-level performance is not required. UNS C95400 equivalent.
International equivalents
| Flag | Standard | Country | Grade | Number | Match |
|---|---|---|---|---|---|
| 🇺🇸 | UNS | USA | UNS C95400 | C95400 | REF |
| 🇪🇺 | EN | Europe | CuAl9Ni3Fe2 / CC331G | CC331G | 100% |
Sources: ASTM B148, EN 1982
Chemical composition comparison (wt%)
Side-by-side: CuAl9Ni3Fe2 (EN) (EN 1982) vs CuAl9Ni3Fe2 / CC331G (EN) (EN 1982)
| Element | CuAl9Ni3Fe2 (EN) | CuAl9Ni3Fe2 / CC331G (EN) | Overlap |
|---|---|---|---|
| Mn | 0–2% | 0–2% | OK |
| Ni | 1.5–3.5% | 1.5–3.5% | OK |
| Cu | — | — | — |
| Al | 8–10% | 8–10% | OK |
| Fe | 1.5–3.5% | 1.5–3.5% | OK |
Mechanical properties
As Cast
| Property | Value | Unit |
|---|---|---|
| Tensile Strength | 500–600 | MPa |
| Yield Strength | 180–250 | MPa |
| Elongation | 15–20 | % |
| Hardness HB | 110–150 | HB |
| Density | ≥ 7.45 | g/cm3 |
Compatibility verdict
CuAl9Ni3Fe2 and CuAl9Ni3Fe2 / CC331G: 100% composition match
Close equivalents but NOT identical.
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