1.7225 | 42CrMo4 +N Normalised at 850 °C (furnace cooling)
| Numeric designation | 1.7225 |
|---|---|
| Chemical designation | 42CrMo4 |
| State | Normalised at 850 °C (furnace cooling) |
| Etching | 3% Nital |
This hypoeutectoid steel (bar material with ⌀ = 28 mm) with 0.38 % carbon (measured with OES) was normalised at 850 °C and then slowly cooled in the furnace. The microstructure consists, typical for this material and heat treatment condition, of ferrite and fine and ultra-fine-grained pearlite. The average core hardness is 207 HV5.
