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ACI-ASTM CE3MN Steel vs. SAE-AISI M42 Steel

Both ACI-ASTM CE3MN steel and SAE-AISI M42 steel are iron alloys. They have 71% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CE3MN steel and the bottom bar is SAE-AISI M42 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 81
78
Tensile Strength: Ultimate (UTS), MPa 770
810 to 2310

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Melting Completion (Liquidus), °C 1450
1540
Melting Onset (Solidus), °C 1410
1490
Specific Heat Capacity, J/kg-K 470
450
Thermal Conductivity, W/m-K 15
20
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 21
30
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 4.2
7.4
Embodied Energy, MJ/kg 58
100
Embodied Water, L/kg 180
140

Common Calculations

PREN (Pitting Resistance) 43
38
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 27
28 to 79
Strength to Weight: Bending, points 24
24 to 48
Thermal Diffusivity, mm2/s 4.1
5.4
Thermal Shock Resistance, points 21
25 to 71

Alloy Composition

Carbon (C), % 0 to 0.030
1.1 to 1.2
Chromium (Cr), % 24 to 26
3.5 to 4.3
Cobalt (Co), % 0
7.8 to 8.8
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 58.1 to 65.9
76.3 to 81
Manganese (Mn), % 0 to 1.5
0.15 to 0.4
Molybdenum (Mo), % 4.0 to 5.0
9.0 to 10
Nickel (Ni), % 6.0 to 8.0
0 to 0.3
Nitrogen (N), % 0.1 to 0.3
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0.15 to 0.65
Sulfur (S), % 0 to 0.040
0 to 0.030
Tungsten (W), % 0
1.2 to 1.9
Vanadium (V), % 0
1.0 to 1.4