1.7335 | 13CrMo4-5 laser welded
| Numeric designation | 1.7335 |
|---|---|
| Chemical designation | 13CrMo4-5 |
| State | laser welded |
| Etching | 3 % Nital |
This alloyed pressure vessel steel was laser welded. The weld area was preheated by a graphite bush. A ledeburitic layer was formed by diffusion (see hardness curve). Below the ledeburitic layer, there is martensite with a lot of retained austenite. In the transition zone, all microstructures are present (martensite, bainite, pearlite and ferrite).
