BÖHLER M238 Highhard

m238highhard-werkzeug03jpg

BÖHLER M238HH corresponds to BÖHLER M238 in High-Hard product variant. A variation in the heat treatment enables significantly higher wear resistance and edge-stability for improved tool life.

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: high
  • Machinability: good
  • Dimensional stability: good
  • Polishability: very 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 HIGHHARD Datasheet
PDF | 63 KB
M238 Brochure
PDF | 924 KB
BL009_Tool Steels, High Speed Steels
PDF | 2.89 MB
BW010_plastic mould steels
PDF | 6.26 MB
BW141_Grinding for toolmaking
PDF | 1.42 MB
BW142_Polishing in mold making
PDF | 2.67 MB

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