BÖHLER M238

m238_werkzeug01jpg

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
  • Plates
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

General Information

  • Toughness & Ductility: very high
  • Wear Resistance: good
  • Machinability: good
  • Dimensional stability: good
  • Polishability: high
  • No heat treatment necessary
  • Prehardened

Technical Data

 Etchability
Machinability in as supplied condition
Polishability
Through-hardenable
Toughness
Wear resistance

Chemical composition (average %)

C Si Mn Cr Mo Ni
0.38 0.30 1.50 2.00 0.20 1.10
SEL EN
1.2738 40CrMnNiMo8-6-4
EN ISO
4957

Downloads

M238 Datasheet
PDF | 58 KB
M238 Brochure
PDF | 924 KB
BL009_Tool Steels, High Speed Steels
PDF | 2,89 MB
BW010_plastic mould steels
PDF | 6,26 MB
BW140_Welding in tool making
PDF | 494 KB
BW141_Grinding for toolmaking
PDF | 1,42 MB
BW142_Polishing in mold making
PDF | 2,67 MB
BW145_High peformance metals for racing applications
PDF | 646 KB

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