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C72700 Copper-nickel vs. SAE-AISI M47 Steel

C72700 copper-nickel belongs to the copper alloys classification, while SAE-AISI M47 steel belongs to the iron alloys. There are 21 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 C72700 copper-nickel and the bottom bar is SAE-AISI M47 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 44
77
Tensile Strength: Ultimate (UTS), MPa 460 to 1070
810 to 2310

Thermal Properties

Latent Heat of Fusion, J/g 210
270
Melting Completion (Liquidus), °C 1100
1540
Melting Onset (Solidus), °C 930
1500
Specific Heat Capacity, J/kg-K 380
450
Thermal Conductivity, W/m-K 54
23
Thermal Expansion, µm/m-K 17
11

Otherwise Unclassified Properties

Base Metal Price, % relative 36
26
Density, g/cm3 8.8
8.1
Embodied Carbon, kg CO2/kg material 4.0
7.4
Embodied Energy, MJ/kg 62
100
Embodied Water, L/kg 350
120

Common Calculations

Stiffness to Weight: Axial, points 7.4
14
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 14 to 34
28 to 79
Strength to Weight: Bending, points 15 to 26
24 to 48
Thermal Diffusivity, mm2/s 16
6.3
Thermal Shock Resistance, points 16 to 38
27 to 77

Alloy Composition

Carbon (C), % 0
1.1 to 1.2
Chromium (Cr), % 0
3.5 to 4.0
Cobalt (Co), % 0
4.8 to 5.3
Copper (Cu), % 82.1 to 86
0 to 0.25
Iron (Fe), % 0 to 0.5
78.7 to 85
Lead (Pb), % 0 to 0.020
0
Magnesium (Mg), % 0 to 0.15
0
Manganese (Mn), % 0.050 to 0.3
0.15 to 0.4
Molybdenum (Mo), % 0
9.3 to 10
Nickel (Ni), % 8.5 to 9.5
0 to 0.3
Niobium (Nb), % 0 to 0.1
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0.2 to 0.45
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 5.5 to 6.5
0
Tungsten (W), % 0
1.3 to 1.8
Vanadium (V), % 0
1.2 to 1.4
Zinc (Zn), % 0 to 0.5
0
Residuals, % 0 to 0.3
0