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ASTM M4

M4


M4 material is Molybdenum series High-speed tool steel.

Chemical composition of M4, M4 mechanical properties, M4 datasheet, M4 equivalent grade, Heat treatment and temperature process of M4.

  • Tags: M4,

M4 property sheet

M4 Spec.

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Chemical Composition of M4

C 1.25～1.40
Si 0.20～0.45
Mn 0.15～0.40
P ≤0.030
S ≤0.030
Cr 3.75～4.75
Mo 4.25～5.50
V 3.75～4.50
W 5.25～6.50

Mechanical Properties of M4

Rp0.2 (MPa) 654 (≥)
Rm (MPa) 375 (≥)
AKV (J) 13
A (%) 21
Z (%) 13
Hardness HBW 421

M4 shape and dimensions

M4 Round bar: 1mm-800mm
M4 Square bar: 10mm * 10mm-600mm *600mm
M4 Flat bar: Thickness:8mm-800mm Width:10mm to 1500mm
M4 Sheet or Plate: Thickness:3mm-80mm Width:1.5mm to 1500mm
M4 Strip or Coil: Thickness:0.1mm-3mm Width:1.5mm-1500mm
M4 Forgings: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes

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