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SAE-AISI M50 Steel vs. K94200 Alloy

Both SAE-AISI M50 steel and K94200 alloy are iron alloys. There are 17 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M50 steel and the bottom bar is K94200 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
140
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 75
54
Tensile Strength: Ultimate (UTS), MPa 720 to 2250
500 to 710

Thermal Properties

Melting Onset (Solidus), °C 1440
1440
Specific Heat Capacity, J/kg-K 470
500
Thermal Conductivity, W/m-K 35
15
Thermal Expansion, µm/m-K 13
5.0

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.7
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 10
3.0

Otherwise Unclassified Properties

Density, g/cm3 7.9
8.2

Common Calculations

Stiffness to Weight: Axial, points 14
9.8
Stiffness to Weight: Bending, points 25
21
Strength to Weight: Axial, points 26 to 80
17 to 24
Strength to Weight: Bending, points 23 to 49
17 to 22
Thermal Diffusivity, mm2/s 9.7
3.7
Thermal Shock Resistance, points 21 to 66
49 to 70

Comparable Variants