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SAE-AISI M2 Steel vs. AISI W1 Steel

Both SAE-AISI M2 steel and AISI W1 steel are iron alloys. They have 83% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M2 steel and the bottom bar is AISI W1 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
72
Tensile Strength: Ultimate (UTS), MPa 760 to 2150
590 to 2320

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Melting Completion (Liquidus), °C 1610
1450
Melting Onset (Solidus), °C 1570
1410
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 22
48
Thermal Expansion, µm/m-K 10
10

Otherwise Unclassified Properties

Base Metal Price, % relative 24
2.2
Density, g/cm3 8.4
7.8
Embodied Carbon, kg CO2/kg material 8.8
1.6
Embodied Energy, MJ/kg 130
21
Embodied Water, L/kg 98
47

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 25 to 71
21 to 83
Strength to Weight: Bending, points 22 to 44
20 to 50
Thermal Diffusivity, mm2/s 5.9
13
Thermal Shock Resistance, points 27 to 76
22 to 85

Alloy Composition

Carbon (C), % 0.78 to 1.1
0.7 to 1.5
Chromium (Cr), % 3.8 to 4.5
0 to 0.15
Copper (Cu), % 0 to 0.25
0 to 0.2
Iron (Fe), % 78.5 to 83.4
96.4 to 98.9
Manganese (Mn), % 0.15 to 0.4
0.35 to 0.73
Molybdenum (Mo), % 4.5 to 5.5
0 to 0.1
Nickel (Ni), % 0 to 0.3
0 to 0.2
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0.2 to 0.45
0.1 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.025
Tungsten (W), % 5.5 to 6.8
0 to 0.15
Vanadium (V), % 1.8 to 2.2
0 to 0.1

Comparable Variants