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America SAE M-252 Special Purpose Alloys (Superalloys) and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: M-252 / M-252
Category Grade Standard Region/Area Standard Content
Metals M-252 SAE J 467B America Special Purpose Alloys (Superalloys)

Chemical composition(mass fraction)(wt.%) of the M-252

Element Min Max Similar
Ti - - 2.6000
Si - - 0.5000
Ni - - -
Mo - - 10.0000
Mn - - 0.5000
Cr - - 20.0000
Co - - 10.0000
C - - 0.1500
B - - 0.0050
Al - - 1.0000

Mechanical Properties of steel grade M-252

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)
112 (≥) 955 (≥) 21 12 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 122

Physical Properties of steel grade M-252

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
14 - -     0.23 -  
242 544 - 31.3 341   -  
131 - 11 41.2   111 113

Heat Treatment of steel grade M-252

Heat treated : 1746°C - 1465°C

Technological Curves of steel grade M-252

Cross Reference Table (Equivalent Grade) of M-252

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