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SAE-AISI M41 Steel vs. ACI-ASTM CK3MCuN Steel

Both SAE-AISI M41 steel and ACI-ASTM CK3MCuN steel are iron alloys. They have 62% 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 CK3MCuN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
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
300
Melting Completion (Liquidus), °C 1600
1460
Melting Onset (Solidus), °C 1550
1350
Specific Heat Capacity, J/kg-K 440
460
Thermal Conductivity, W/m-K 22
12
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 33
29
Density, g/cm3 8.4
8.0
Embodied Carbon, kg CO2/kg material 9.1
5.6
Embodied Energy, MJ/kg 140
76
Embodied Water, L/kg 120
190

Common Calculations

PREN (Pitting Resistance) 28
45
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
3.2
Thermal Shock Resistance, points 25 to 71
14

Alloy Composition

Carbon (C), % 1.1 to 1.2
0 to 0.025
Chromium (Cr), % 3.8 to 4.5
19.5 to 20.5
Cobalt (Co), % 4.8 to 5.8
0
Copper (Cu), % 0 to 0.25
0.5 to 1.0
Iron (Fe), % 73.4 to 78.9
49.5 to 56.3
Manganese (Mn), % 0.2 to 0.6
0 to 1.2
Molybdenum (Mo), % 3.3 to 4.3
6.0 to 7.0
Nickel (Ni), % 0 to 0.3
17.5 to 19.5
Nitrogen (N), % 0
0.18 to 0.24
Phosphorus (P), % 0 to 0.030
0 to 0.045
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