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K94200 Alloy vs. SAE-AISI M4 Steel

Both K94200 alloy and SAE-AISI M4 steel are iron alloys. There are 15 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is K94200 alloy and the bottom bar is SAE-AISI M4 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
200
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 54
76
Tensile Strength: Ultimate (UTS), MPa 500 to 710
770 to 2150

Thermal Properties

Melting Onset (Solidus), °C 1440
1560
Specific Heat Capacity, J/kg-K 500
440
Thermal Conductivity, W/m-K 15
25
Thermal Expansion, µm/m-K 5.0
12

Otherwise Unclassified Properties

Density, g/cm3 8.2
8.3

Common Calculations

Stiffness to Weight: Axial, points 9.8
13
Stiffness to Weight: Bending, points 21
23
Strength to Weight: Axial, points 17 to 24
26 to 72
Strength to Weight: Bending, points 17 to 22
23 to 45
Thermal Diffusivity, mm2/s 3.7
6.9
Thermal Shock Resistance, points 49 to 70
24 to 68

Comparable Variants