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C70620 Copper-nickel vs. S41050 Stainless Steel

C70620 copper-nickel belongs to the copper alloys classification, while S41050 stainless steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is C70620 copper-nickel and the bottom bar is S41050 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
190
Poisson's Ratio 0.34
0.28
Rockwell B Hardness 65 to 87
77
Shear Modulus, GPa 46
76
Tensile Strength: Ultimate (UTS), MPa 300 to 570
470

Thermal Properties

Latent Heat of Fusion, J/g 220
270
Maximum Temperature: Mechanical, °C 220
720
Melting Completion (Liquidus), °C 1120
1440
Melting Onset (Solidus), °C 1060
1400
Specific Heat Capacity, J/kg-K 390
480
Thermal Conductivity, W/m-K 49
27
Thermal Expansion, µm/m-K 17
10

Otherwise Unclassified Properties

Base Metal Price, % relative 33
7.0
Density, g/cm3 8.9
7.8
Embodied Carbon, kg CO2/kg material 3.4
1.9
Embodied Energy, MJ/kg 51
27
Embodied Water, L/kg 300
97

Common Calculations

Stiffness to Weight: Axial, points 7.7
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 9.3 to 18
17
Strength to Weight: Bending, points 11 to 17
17
Thermal Diffusivity, mm2/s 14
7.2
Thermal Shock Resistance, points 10 to 20
17

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.040
Chromium (Cr), % 0
10.5 to 12.5
Copper (Cu), % 86.5 to 90
0
Iron (Fe), % 1.0 to 1.8
84.2 to 88.9
Lead (Pb), % 0 to 0.020
0
Manganese (Mn), % 0 to 1.0
0 to 1.0
Nickel (Ni), % 9.0 to 11
0.6 to 1.1
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.2
0 to 0.045
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.030
Zinc (Zn), % 0 to 0.5
0
Residuals, % 0 to 0.5
0