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SAE-AISI M2 Steel vs. EN 1.6958 Steel

Both SAE-AISI M2 steel and EN 1.6958 steel are iron alloys. They have 84% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (12, 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 1.6958 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 760 to 2150
1140

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Melting Completion (Liquidus), °C 1610
1460
Melting Onset (Solidus), °C 1570
1420
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 22
47
Thermal Expansion, µm/m-K 10
11

Otherwise Unclassified Properties

Base Metal Price, % relative 24
5.0
Density, g/cm3 8.4
7.9
Embodied Carbon, kg CO2/kg material 8.8
2.0
Embodied Energy, MJ/kg 130
27
Embodied Water, L/kg 98
60

Common Calculations

PREN (Pitting Resistance) 31
2.9
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 25 to 71
40
Strength to Weight: Bending, points 22 to 44
31
Thermal Diffusivity, mm2/s 5.9
13
Thermal Shock Resistance, points 27 to 76
39

Alloy Composition

Aluminum (Al), % 0
0.0050 to 0.050
Carbon (C), % 0.78 to 1.1
0.25 to 0.3
Chromium (Cr), % 3.8 to 4.5
1.2 to 1.7
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 78.5 to 83.4
92.6 to 94.5
Manganese (Mn), % 0.15 to 0.4
0.2 to 0.5
Molybdenum (Mo), % 4.5 to 5.5
0.35 to 0.55
Nickel (Ni), % 0 to 0.3
3.3 to 3.8
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0.2 to 0.45
0.15 to 0.3
Sulfur (S), % 0 to 0.030
0 to 0.015
Tungsten (W), % 5.5 to 6.8
0
Vanadium (V), % 1.8 to 2.2
0 to 0.12