CuAl8Fe3
CW303GStandard single-phase aluminium bronze — 8% Al + 3% Fe. Good balance of strength (UTS 500-600 MPa), corrosion resistance (especially seawater), and wear resistance. Fe refines grain and improves hot working. No Ni = lower cost than CuAl10Ni5Fe4 but still excellent marine performance. Used for pump impellers, valve bodies, marine hardware, bushings, and non-sparking tools. C61400 equivalent.
International equivalents
| Flag | Standard | Country | Grade | Number | Match |
|---|---|---|---|---|---|
| 🇺🇸 | UNS | USA | UNS C61400 | C61400 | REF |
| 🇪🇺 | EN | Europe | CuAl8Fe3 / CW303G | CW303G | 100% |
Sources: ASTM B169, EN 1652
Chemical composition comparison (wt%)
Side-by-side: CuAl8Fe3 (EN) (EN 1652) vs CuAl8Fe3 / CW303G (EN) (EN 1652)
| Element | CuAl8Fe3 (EN) | CuAl8Fe3 / CW303G (EN) | Overlap |
|---|---|---|---|
| Mn | 0–0.5% | 0–0.5% | OK |
| Ni | 0–0.5% | 0–0.5% | OK |
| Cu | — | — | — |
| Al | 7–9% | 7–9% | OK |
| Fe | 1.5–3.5% | 1.5–3.5% | OK |
Mechanical properties
As Drawn
| Property | Value | Unit |
|---|---|---|
| Tensile Strength | 500–650 | MPa |
| Yield Strength | 200–350 | MPa |
| Elongation | 15–35 | % |
| Elastic Modulus | ≥ 120 | GPa |
| Density | ≥ 7.6 | g/cm3 |
Compatibility verdict
CuAl8Fe3 and CuAl8Fe3 / CW303G: 100% composition match
Close equivalents but NOT identical.
Related materials
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