1.4582 | X4CrNiMoNb25-7
| Numeric designation | 1.4582 |
|---|---|
| Chemical designation | X4CrNiMoNb25-7 |
| Etching | V2A-Beize @ 70 °C |
High-alloy duplex steel, here after solution annealing and water quenching. The austenite phase (light) lies in the ferritic matrix. The fine needles are presumably nitrides (NbN?), the dark spots either micro blowholes or sulfide inclusions removed during etching.
Fe-Base
1.1221 | C60E +I Prior austenite grain boundaries
1.1274 | C100S +QW +T Prior austenite grain boundaries
1.1269 | C85S +QW +T Prior austenite grain boundaries
1.7076 | 32CrB4 +Q Prior austenite grain boundaries
1.1221 | C60E +QW +T Prior austenite grain boundaries
1.1191 | C45E +QW +T Prior austenite grain boundaries
1.7220 | 34CrMo4 +Q Prior austenite grain boundaries
1.7220 | 34CrMo4 +QT (12.9) Prior austenite grain boundaries
1.7076 | 32CrB4 +QT (12.9) Prior austenite grain boundaries
1.5511 | 35B2 +QT (9.8) Prior austenite grain boundaries