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SAE-AISI M41 Steel vs. ACI-ASTM CN3MN Steel

Both SAE-AISI M41 steel and ACI-ASTM CN3MN steel are iron alloys. They have 55% of their average alloy composition in common. There are 22 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 M41 steel and the bottom bar is ACI-ASTM CN3MN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 77
80
Tensile Strength: Ultimate (UTS), MPa 800 to 2290
620

Thermal Properties

Latent Heat of Fusion, J/g 260
310
Melting Completion (Liquidus), °C 1600
1460
Melting Onset (Solidus), °C 1550
1410
Specific Heat Capacity, J/kg-K 440
460
Thermal Conductivity, W/m-K 22
13
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 33
33
Density, g/cm3 8.4
8.1
Embodied Carbon, kg CO2/kg material 9.1
6.2
Embodied Energy, MJ/kg 140
84
Embodied Water, L/kg 120
200

Common Calculations

PREN (Pitting Resistance) 28
46
Stiffness to Weight: Axial, points 13
14
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
3.4
Thermal Shock Resistance, points 25 to 71
14

Alloy Composition

Carbon (C), % 1.1 to 1.2
0 to 0.030
Chromium (Cr), % 3.8 to 4.5
20 to 22
Cobalt (Co), % 4.8 to 5.8
0
Copper (Cu), % 0 to 0.25
0 to 0.75
Iron (Fe), % 73.4 to 78.9
41.4 to 50.3
Manganese (Mn), % 0.2 to 0.6
0 to 2.0
Molybdenum (Mo), % 3.3 to 4.3
6.0 to 7.0
Nickel (Ni), % 0 to 0.3
23.5 to 25.5
Nitrogen (N), % 0
0.18 to 0.26
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.15 to 0.5
0 to 1.0
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