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SAE-AISI M1 Steel vs. ASTM A372 Grade C Steel

Both SAE-AISI M1 steel and ASTM A372 grade C steel are iron alloys. They have 84% of their average alloy composition in common. There are 21 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 M1 steel and the bottom bar is ASTM A372 grade C 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 730 to 2140
710

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Melting Completion (Liquidus), °C 1560
1460
Melting Onset (Solidus), °C 1510
1420
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 29
51
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 18
1.8
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 7.0
1.4
Embodied Energy, MJ/kg 99
19
Embodied Water, L/kg 98
46

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 25 to 73
25
Strength to Weight: Bending, points 22 to 45
23
Thermal Diffusivity, mm2/s 8.0
14
Thermal Shock Resistance, points 23 to 66
22

Alloy Composition

Carbon (C), % 0.78 to 0.88
0 to 0.48
Chromium (Cr), % 3.5 to 4.0
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 81 to 84.8
97.5 to 99.85
Manganese (Mn), % 0.15 to 0.4
0 to 1.7
Molybdenum (Mo), % 8.2 to 9.2
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0 to 0.015
Silicon (Si), % 0.2 to 0.5
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.010
Tungsten (W), % 1.4 to 2.1
0
Vanadium (V), % 1.0 to 1.4
0