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C72200 Copper-nickel vs. S40977 Stainless Steel

C72200 copper-nickel belongs to the copper alloys classification, while S40977 stainless steel belongs to the iron alloys. There are 25 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 C72200 copper-nickel and the bottom bar is S40977 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 130
190
Poisson's Ratio 0.33
0.28
Rockwell B Hardness 71 to 86
76
Shear Modulus, GPa 48
76
Tensile Strength: Ultimate (UTS), MPa 350 to 580
510

Thermal Properties

Latent Heat of Fusion, J/g 220
270
Maximum Temperature: Mechanical, °C 230
720
Melting Completion (Liquidus), °C 1180
1440
Melting Onset (Solidus), °C 1120
1400
Specific Heat Capacity, J/kg-K 400
480
Thermal Conductivity, W/m-K 34
25
Thermal Expansion, µm/m-K 16
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.5
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 6.6
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 36
6.5
Density, g/cm3 8.9
7.8
Embodied Carbon, kg CO2/kg material 3.9
1.9
Embodied Energy, MJ/kg 59
27
Embodied Water, L/kg 300
97

Common Calculations

Stiffness to Weight: Axial, points 8.0
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 11 to 18
18
Strength to Weight: Bending, points 12 to 17
18
Thermal Diffusivity, mm2/s 9.6
6.7
Thermal Shock Resistance, points 12 to 20
18

Alloy Composition

Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0.3 to 0.7
10.5 to 12.5
Copper (Cu), % 78.1 to 84.2
0
Iron (Fe), % 0.5 to 1.0
83.9 to 89.2
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0 to 1.0
0 to 1.5
Nickel (Ni), % 15 to 18
0.3 to 1.0
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Zinc (Zn), % 0 to 1.0
0
Residuals, % 0 to 0.2
0