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SAE-AISI M41 Steel vs. ASTM A372 Grade B Steel

Both SAE-AISI M41 steel and ASTM A372 grade B steel are iron alloys. They have 77% 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 M41 steel and the bottom bar is ASTM A372 grade B 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 800 to 2290
600

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Melting Completion (Liquidus), °C 1600
1460
Melting Onset (Solidus), °C 1550
1420
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 22
52
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 33
1.8
Density, g/cm3 8.4
7.8
Embodied Carbon, kg CO2/kg material 9.1
1.4
Embodied Energy, MJ/kg 140
18
Embodied Water, L/kg 120
46

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 26 to 76
21
Strength to Weight: Bending, points 23 to 46
20
Thermal Diffusivity, mm2/s 6.0
14
Thermal Shock Resistance, points 25 to 71
19

Alloy Composition

Carbon (C), % 1.1 to 1.2
0 to 0.35
Chromium (Cr), % 3.8 to 4.5
0
Cobalt (Co), % 4.8 to 5.8
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 73.4 to 78.9
97.9 to 99.85
Manganese (Mn), % 0.2 to 0.6
0 to 1.4
Molybdenum (Mo), % 3.3 to 4.3
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0 to 0.015
Silicon (Si), % 0.15 to 0.5
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.010
Tungsten (W), % 6.3 to 7.0
0
Vanadium (V), % 1.8 to 2.3
0