CW604N | CuZn37Pb0.5 Stress corrosion cracking
| Numeric designation | CW604N |
|---|---|
| Chemical designation | CuZn37Pb0,5 |
| State | Stress corrosion cracking |
| Etching | Messingätzmittel |
The screw connection of a water fitting has broken due to stress corrosion cracking caused by excessive hardness (131 HBW 2.5/62.5). Parallel to the fracture, there are numerous other, predominantly transcrystalline cracks with typical branching on the inside. The microstructure is a pure alpha brass.
Corrosion Damages
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Corroded Heating Pipes Made from Construction Steel