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SAE-AISI M41 Steel vs. ACI-ASTM CD4MCuN Steel

Both SAE-AISI M41 steel and ACI-ASTM CD4MCuN steel are iron alloys. They have 70% 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 SAE-AISI M41 steel and the bottom bar is ACI-ASTM CD4MCuN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 77
79
Tensile Strength: Ultimate (UTS), MPa 800 to 2290
770

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Melting Completion (Liquidus), °C 1600
1420
Melting Onset (Solidus), °C 1550
1380
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 22
17
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 33
18
Density, g/cm3 8.4
7.8
Embodied Carbon, kg CO2/kg material 9.1
3.5
Embodied Energy, MJ/kg 140
49
Embodied Water, L/kg 120
180

Common Calculations

PREN (Pitting Resistance) 28
35
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 26 to 76
28
Strength to Weight: Bending, points 23 to 46
24
Thermal Diffusivity, mm2/s 6.0
4.5
Thermal Shock Resistance, points 25 to 71
21

Alloy Composition

Carbon (C), % 1.1 to 1.2
0 to 0.040
Chromium (Cr), % 3.8 to 4.5
24.5 to 26.5
Cobalt (Co), % 4.8 to 5.8
0
Copper (Cu), % 0 to 0.25
2.7 to 3.3
Iron (Fe), % 73.4 to 78.9
59.5 to 66.3
Manganese (Mn), % 0.2 to 0.6
0 to 1.0
Molybdenum (Mo), % 3.3 to 4.3
1.7 to 2.3
Nickel (Ni), % 0 to 0.3
4.7 to 6.0
Nitrogen (N), % 0
0.1 to 0.25
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 0.040
Tungsten (W), % 6.3 to 7.0
0
Vanadium (V), % 1.8 to 2.3
0