CuZn39Pb2
CW612NFree-cutting brass with 2% lead. Good machinability (80% of CuZn39Pb3) with slightly better cold formability. Used for fittings, valves, electrical connectors, and turned parts where slightly less Pb is acceptable or required by regulation. ≈ UNS C37700.
International equivalents
| Flag | Standard | Country | Grade | Number | Match |
|---|---|---|---|---|---|
| 🇺🇸 | UNS | USA | UNS C37700 (approx) | C37700 | REF |
| 🇪🇺 | EN | Europe | CuZn39Pb2 | CW612N | 100% |
Sources: ASTM B124, EN 12164
Chemical composition comparison (wt%)
Side-by-side: CuZn39Pb2 (EN 12164) vs CuZn39Pb2 (EN) (EN 12164)
| Element | CuZn39Pb2 (EN 12164) | CuZn39Pb2 (EN) | Overlap |
|---|---|---|---|
| Ni | — | 0–0.3% | — |
| Cu | — | 59–62% | — |
Mechanical properties
Compatibility verdict
CuZn39Pb2 and CuZn39Pb2: 100% composition match
Related materials
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