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SAE-AISI M2 Steel vs. EN 1.3975 Stainless Steel

Both SAE-AISI M2 steel and EN 1.3975 stainless steel are iron alloys. They have 67% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (10, 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 1.3975 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
660

Thermal Properties

Latent Heat of Fusion, J/g 260
340
Melting Completion (Liquidus), °C 1610
1360
Melting Onset (Solidus), °C 1570
1320
Specific Heat Capacity, J/kg-K 440
500
Thermal Expansion, µm/m-K 10
16

Otherwise Unclassified Properties

Base Metal Price, % relative 24
15
Density, g/cm3 8.4
7.5
Embodied Carbon, kg CO2/kg material 8.8
3.3
Embodied Energy, MJ/kg 130
47
Embodied Water, L/kg 98
150

Common Calculations

PREN (Pitting Resistance) 31
21
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
26
Strength to Weight: Axial, points 25 to 71
24
Strength to Weight: Bending, points 22 to 44
22
Thermal Shock Resistance, points 27 to 76
15

Alloy Composition

Carbon (C), % 0.78 to 1.1
0 to 0.050
Chromium (Cr), % 3.8 to 4.5
16 to 18
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 78.5 to 83.4
58.2 to 65.4
Manganese (Mn), % 0.15 to 0.4
7.0 to 9.0
Molybdenum (Mo), % 4.5 to 5.5
0 to 1.0
Nickel (Ni), % 0 to 0.3
8.0 to 9.0
Nitrogen (N), % 0
0.080 to 0.18
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0.2 to 0.45
3.5 to 4.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 5.5 to 6.8
0
Vanadium (V), % 1.8 to 2.2
0