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SAE-AISI M42 Steel vs. ACI-ASTM CF10SMnN Steel

Both SAE-AISI M42 steel and ACI-ASTM CF10SMnN 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 M42 steel and the bottom bar is ACI-ASTM CF10SMnN 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 78
75
Tensile Strength: Ultimate (UTS), MPa 810 to 2310
660

Thermal Properties

Latent Heat of Fusion, J/g 270
340
Melting Completion (Liquidus), °C 1540
1360
Melting Onset (Solidus), °C 1490
1310
Specific Heat Capacity, J/kg-K 450
500
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 30
15
Density, g/cm3 8.2
7.5
Embodied Carbon, kg CO2/kg material 7.4
3.1
Embodied Energy, MJ/kg 100
45
Embodied Water, L/kg 140
150

Common Calculations

PREN (Pitting Resistance) 38
19
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 28 to 79
24
Strength to Weight: Bending, points 24 to 48
22
Thermal Shock Resistance, points 25 to 71
15

Alloy Composition

Carbon (C), % 1.1 to 1.2
0 to 0.1
Chromium (Cr), % 3.5 to 4.3
16 to 18
Cobalt (Co), % 7.8 to 8.8
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 76.3 to 81
59.1 to 65.4
Manganese (Mn), % 0.15 to 0.4
7.0 to 9.0
Molybdenum (Mo), % 9.0 to 10
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 0.060
Silicon (Si), % 0.15 to 0.65
3.5 to 4.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 1.2 to 1.9
0
Vanadium (V), % 1.0 to 1.4
0