CuAl10Ni5Fe4
CW307GThe premium aluminium bronze grade. Exceptional combination of high strength (700+ MPa), excellent corrosion resistance (especially seawater), and wear resistance. Used for ship propellers, heavy-duty bearings and bushings, valve bodies, pump impellers, and offshore platform components.
International equivalents
| Flag | Standard | Country | Grade | Number | Match |
|---|---|---|---|---|---|
| 🇺🇸 | UNS | USA | UNS C63000 | C63000 | REF |
| 🇪🇺 | EN | Europe | CuAl10Ni5Fe4 | CW307G | 100% |
| 🇬🇧 | BS | United Kingdom | CA104 | — | 95% |
Sources: ASTM B150, EN 1652, BS 2874
Chemical composition comparison (wt%)
Side-by-side: CuAl10Ni5Fe4 (EN) (EN 1652) vs CA104 (BS)
| Element | CuAl10Ni5Fe4 (EN) | CA104 (BS) | Overlap |
|---|---|---|---|
| Mn | 0–2% | — | — |
| Ni | 4–6% | — | — |
| Cu | — | — | — |
| Al | 8.5–11% | — | — |
| Fe | 3–5% | — | — |
| Zn | 0–0.5% | — | — |
Mechanical properties
Hot Worked
| Property | Value | Unit |
|---|---|---|
| Tensile Strength | ≥ 630 | MPa |
| Yield Strength | ≥ 250 | MPa |
| Elongation | ≥ 13 | % |
| Hardness HB | 150–210 | HB |
| Elastic Modulus | ≥ 120 | GPa |
| Density | ≥ 7.58 | g/cm3 |
Compatibility verdict
CuAl10Ni5Fe4 and CA104: 95% composition match
Close equivalents but NOT identical.
Related materials
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