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MAR-M 322

Description

USA UNS SAE J 467 (1968), MAR-M 322 Specialsteel Special Purpose Alloys ("Superalloys") and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: MAR-M 322
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel MAR-M 322 Precipitation-Hardening UNS USA Special Purpose Alloys ("Superalloys")

Chemical composition(mass fraction)(wt.%) of the MAR-M 322

C Si Mn Cr Ni Mo Co W Al Cu Ti Fe Ta Zr
≤1.00 ≤0.10 ≤0.10 ≤21.50 ≤ ≥ ≤ ≥ ≤remaining ≤9.00 ≤ ≥ ≤ ≥ ≤0.75 ≤0.75 ≤4.50 ≤2.25

Mechanical Properties of steel grade MAR-M 322

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)
379 (≥) 319 (≥) 21 11 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 122

Physical Properties of steel grade MAR-M 322

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
22 - -     0.13 -  
448 382 - 33.3 442   -  
447 - 11 44.2   131 131

Heat Treatment of steel grade MAR-M 322

Heat treated : 1919°C - 1571°C

Technological Curves of steel grade MAR-M 322

Relevant standard of MAR-M 322

SAE J 467 (1968) Special Purpose Alloys ("Superalloys") SAE-J-467-(1968).pdf

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