High quality special steel supplier.Old rev.
  • Certified Company

    DNV&ABS
  • Certified Company

    ISO 9001:2008
  • R&D Production

    In China

W108 Extra


W108 Extra material is SAE SAE J 437 (1970) Selection and heat treatment of tool and die steels SAE SAE J 438 (1970) Tool and die steels Tool and die steels.

Chemical composition of W108 Extra, W108 Extra mechanical properties, W108 Extra datasheet, W108 Extra equivalent grade, Heat treatment and temperature process of W108 Extra.


W108 Extra property sheet

W108 Extra Spec.

SAE SAE J 437 (1970)
Selection and heat treatment of tool and die steels
SAE SAE J 438 (1970)
Tool and die steels

Chemical Composition of W108 Extra

C: 0.70 0.85
Si: 0.10 0.40
Mn: 0.10 0.40
Cr: Max Min
V: Max Min

Mechanical Properties of W108 Extra

Rp0.2 (MPa) 163 (≥)
Rm (MPa) 492 (≥)
AKV (J) 31
A (%) 22
Z (%) 42
Hardness HBW 431

W108 Extra shape and dimensions

W108 Extra Round bar: 1mm-800mm
W108 Extra Square bar: 10mm * 10mm-600mm *600mm
W108 Extra Flat bar: Thickness:8mm-800mm Width:10mm to 1500mm
W108 Extra Sheet or Plate: Thickness:3mm-80mm Width:1.5mm to 1500mm
W108 Extra Strip or Coil: Thickness:0.1mm-3mm Width:1.5mm-1500mm
W108 Extra Forgings: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes