M268
Product Description
BÖHLER M268 VMR is a hardened and tempered plastic mould steel with excellent cleanliness for best polishability. The hardness is constant over the entire cross-section of the steel block, even at large sizes, due to the addition of nickel.
Property Features
- Uniformly high strength and toughness, even at larger sizes
- High through hardenability
- Excellent thermal conductivity
- No heat treatment required
- Excellent, high polishability
- Good texturing properties
- Good electrical discharge machining properties
- The material does not require heat treatment, reducing the risk of errors
- The good toughness decreases the risk of cracking during service
Technical Specifications
| Etchability | Machinability supplied | Polishability | Through hardenable | Toughness | Wear resistance |
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Material Numbers
| DIN | EN | Others |
|---|---|---|
| 1.2738 | 40CrMnNiMo8-6-4 | AISI: ~ P20 |
Chemical Composition
| C | Si | Mn | Cr | Mo | Ni | |
|---|---|---|---|---|---|---|
| 0,38 | 0,30 | 1,50 | 2,00 | 0,20 | 1,10 |
Chemical composition (average %)
