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America AISI AISIM-4 Special Purpose Alloys ("Superalloys") and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: AISIM-4 / AISI M-4
Category Grade Standard Region/Area Standard Content
Metals AISI M-4 SAE J 467 America Special Purpose Alloys ("Superalloys")

Chemical composition(mass fraction)(wt.%) of the AISI M-4

Element Min Max Similar
W 5.2500 6.5000 -
V 3.9000 4.5000 -
Si 0.2000 0.4000 -
Mo 4.5000 5.5000 -
Mn 0.2000 0.4000 -
Cr 4.0000 4.7500 -
C 1.2500 1.4000 -
W 5.2500 6.5000 -
V 3.9000 4.5000 -
Si 0.2000 0.4000 -
Mo 4.5000 5.5000 -
Mn 0.2000 0.4000 -
Cr 4.0000 4.7500 -
C 1.2500 1.4000 -

Mechanical Properties of steel grade AISI M-4

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV/Ku (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
938 (≥) 843 (≥) 14 44 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 444

Physical Properties of steel grade AISI M-4

Temperature
(°C)
Modulus of elasticity
(GPa)
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)
Specific thermal capacity
(J/kg·°C)
Specific electrical resistivity
(Ω mm²/m)
Density
(kg/dm³)
Poisson’s coefficient, ν
13 - -     0.13 -  
577 217 - 23.3 423   -  
513 - 22 14.2   441 241

Heat Treatment of steel grade AISI M-4

Heat treated : 1912°C - 1571°C

Technological Curves of steel grade AISI M-4

Cross Reference Table (Equivalent Grade) of AISI M-4

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