CuZn30
CW505L70/30 Brass — the "Cartridge Brass." Best cold formability of all brasses. Excellent deep drawing properties. Good corrosion resistance (better than higher-Zn brasses). Used for cartridge cases, radiator cores, lamp fittings, musical instruments, and decorative hardware. ≈ UNS C26000.
International equivalents
| Flag | Standard | Country | Grade | Number | Match |
|---|---|---|---|---|---|
| 🇺🇸 | UNS | USA | UNS C26000 | C26000 | REF |
| 🇪🇺 | EN | Europe | CuZn30 | CW505L | 100% |
Sources: ASTM B36, EN 12163
Chemical composition comparison (wt%)
Side-by-side: CuZn30 (EN 12163) vs CuZn30 (EN) (EN 12163)
| Element | CuZn30 (EN 12163) | CuZn30 (EN) | Overlap |
|---|---|---|---|
| Ni | — | 0–0.3% | — |
| Cu | — | 69–71% | — |
Mechanical properties
Compatibility verdict
CuZn30 and CuZn30: 100% composition match
Related materials
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CuZn37
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