1.7225 | 42CrMo4 nitrocarburized + oxidized
| Numeric designation | 1.7225 |
|---|---|
| Chemical designation | 42CrMo4 |
| State | nitrocarburized + oxidized |
| Etching | 3 % Nital |
The bright grain boundary precipitations in the diffusion zone are probably (chromium) nitrides, but could also be cementite. The oxidation after nitrocarburizing serves as corrosion protection; the approx. 1 µm thin oxide layer is only visible in places.
Edge zone
1.0718 | 11SMnPb30 +C carbonitrided
Hot-dip galvanising
Ir-MMO coatings on titanium anodes
1.8519 | 31CrMoV9 +QT Long-term plasma-nitrided
1.8550 | 34CrAlNi7-10 +QT Long-term plasma-nitrided
1.2343 | X38CrMoV5-1 +QT Long-term plasma-nitrided
1.1181 | C35E +N nitrocarburized
1.1181 | C35E +N gas nitrided
1.7225 | 42CrMo4 +HL nitrocarburised
1.7225 | 42CrMo4 +HL gas-nitrided