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SAE-AISI M4 Steel vs. ACI-ASTM CF10SMnN Steel

Both SAE-AISI M4 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 M4 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 76
75
Tensile Strength: Ultimate (UTS), MPa 770 to 2150
660

Thermal Properties

Latent Heat of Fusion, J/g 260
340
Melting Completion (Liquidus), °C 1610
1360
Melting Onset (Solidus), °C 1560
1310
Specific Heat Capacity, J/kg-K 440
500
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 25
15
Density, g/cm3 8.3
7.5
Embodied Carbon, kg CO2/kg material 14
3.1
Embodied Energy, MJ/kg 210
45
Embodied Water, L/kg 110
150

Common Calculations

PREN (Pitting Resistance) 30
19
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
26
Strength to Weight: Axial, points 26 to 72
24
Strength to Weight: Bending, points 23 to 45
22
Thermal Shock Resistance, points 24 to 68
15

Alloy Composition

Carbon (C), % 1.3 to 1.4
0 to 0.1
Chromium (Cr), % 3.8 to 4.8
16 to 18
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 75.9 to 81.4
59.1 to 65.4
Manganese (Mn), % 0.15 to 0.4
7.0 to 9.0
Molybdenum (Mo), % 4.3 to 5.5
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), % 0.2 to 0.45
3.5 to 4.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 5.3 to 6.5
0
Vanadium (V), % 3.8 to 4.5
0