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.