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SAE-AISI M43 Steel vs. C70400 Copper-nickel

SAE-AISI M43 steel belongs to the iron alloys classification, while C70400 copper-nickel belongs to the copper alloys. There are 21 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M43 steel and the bottom bar is C70400 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 77
45
Tensile Strength: Ultimate (UTS), MPa 810 to 2290
300 to 310

Thermal Properties

Latent Heat of Fusion, J/g 270
210
Melting Completion (Liquidus), °C 1550
1120
Melting Onset (Solidus), °C 1500
1060
Specific Heat Capacity, J/kg-K 450
390
Thermal Conductivity, W/m-K 19
64
Thermal Expansion, µm/m-K 12
17

Otherwise Unclassified Properties

Base Metal Price, % relative 33
32
Density, g/cm3 8.2
8.9
Embodied Carbon, kg CO2/kg material 8.5
3.0
Embodied Energy, MJ/kg 120
47
Embodied Water, L/kg 140
300

Common Calculations

Stiffness to Weight: Axial, points 14
7.5
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 27 to 77
9.3 to 9.8
Strength to Weight: Bending, points 24 to 47
11 to 12
Thermal Diffusivity, mm2/s 5.3
18
Thermal Shock Resistance, points 25 to 71
10 to 11

Alloy Composition

Carbon (C), % 1.2 to 1.3
0
Chromium (Cr), % 3.5 to 4.3
0
Cobalt (Co), % 7.8 to 8.8
0
Copper (Cu), % 0 to 0.25
89.8 to 93.6
Iron (Fe), % 70.8 to 76
1.3 to 1.7
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0.2 to 0.4
0.3 to 0.8
Molybdenum (Mo), % 7.5 to 8.5
0
Nickel (Ni), % 0 to 0.3
4.8 to 6.2
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.15 to 0.65
0
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 2.3 to 3.0
0
Vanadium (V), % 1.5 to 1.8
0
Zinc (Zn), % 0
0 to 1.0
Residuals, % 0
0 to 0.5