BÖHLER M238
BÖHLER M238 is a prehardened, non-corrosion-resistant plastic mould steel with good machinability. The addition of Ni guarantees uniform strength across the entire cross-section, even with large dimensions (up to 600 mm).
Available Product Shapes
Long Products: Presented data refer exclusivly to long products. Please observe the detailed explanations at the end of the data sheet (pdf).
Melting Route
Airmelted
Property Features
- Toughness & Ductility: very high
- Wear Resistance: good
- English (United Kingdom): good
- Dimensional stability: good
- Polishability: high
- No heat treatment necessary
- Prehardened
Technical Specifications
Material Numbers
- SEL
- 1.2738
- EN
- 40CrMnNiMo8-6-4
Standards
- EN ISO
- 4957
Chemical Composition
* Chemical Composition (Average %)
- C
- 0.38
- Si
- 0.30
- Mn
- 1.50
- Cr
- 2.00
- Mo
- 0.20
- Ni
- 1.10