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SAE-AISI M2 Steel vs. EN 1.4150 Stainless Steel

Both SAE-AISI M2 steel and EN 1.4150 stainless steel are iron alloys. They have 87% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M2 steel and the bottom bar is EN 1.4150 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 77
76
Tensile Strength: Ultimate (UTS), MPa 760 to 2150
730

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Melting Completion (Liquidus), °C 1610
1420
Melting Onset (Solidus), °C 1570
1380
Specific Heat Capacity, J/kg-K 440
490
Thermal Conductivity, W/m-K 22
23
Thermal Expansion, µm/m-K 10
10

Otherwise Unclassified Properties

Base Metal Price, % relative 24
8.5
Density, g/cm3 8.4
7.6
Embodied Carbon, kg CO2/kg material 8.8
2.8
Embodied Energy, MJ/kg 130
42
Embodied Water, L/kg 98
120

Common Calculations

PREN (Pitting Resistance) 31
19
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 25 to 71
27
Strength to Weight: Bending, points 22 to 44
24
Thermal Diffusivity, mm2/s 5.9
6.2
Thermal Shock Resistance, points 27 to 76
27

Alloy Composition

Carbon (C), % 0.78 to 1.1
0.45 to 0.6
Chromium (Cr), % 3.8 to 4.5
15 to 16.5
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 78.5 to 83.4
79 to 82.8
Manganese (Mn), % 0.15 to 0.4
0 to 0.8
Molybdenum (Mo), % 4.5 to 5.5
0.2 to 0.4
Nickel (Ni), % 0 to 0.3
0 to 0.4
Nitrogen (N), % 0
0.050 to 0.2
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.2 to 0.45
1.3 to 1.7
Sulfur (S), % 0 to 0.030
0 to 0.010
Tungsten (W), % 5.5 to 6.8
0
Vanadium (V), % 1.8 to 2.2
0.2 to 0.4