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C72200 Copper-nickel vs. S31277 Stainless Steel

C72200 copper-nickel belongs to the copper alloys classification, while S31277 stainless steel belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is C72200 copper-nickel and the bottom bar is S31277 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 130
210
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 48
80
Tensile Strength: Ultimate (UTS), MPa 350 to 580
860

Thermal Properties

Latent Heat of Fusion, J/g 220
310
Maximum Temperature: Mechanical, °C 230
1100
Melting Completion (Liquidus), °C 1180
1460
Melting Onset (Solidus), °C 1120
1410
Specific Heat Capacity, J/kg-K 400
460
Thermal Expansion, µm/m-K 16
16

Otherwise Unclassified Properties

Base Metal Price, % relative 36
36
Density, g/cm3 8.9
8.1
Embodied Carbon, kg CO2/kg material 3.9
6.7
Embodied Energy, MJ/kg 59
90
Embodied Water, L/kg 300
220

Common Calculations

Stiffness to Weight: Axial, points 8.0
14
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 11 to 18
29
Strength to Weight: Bending, points 12 to 17
25
Thermal Shock Resistance, points 12 to 20
19

Alloy Composition

Carbon (C), % 0
0 to 0.020
Chromium (Cr), % 0.3 to 0.7
20.5 to 23
Copper (Cu), % 78.1 to 84.2
0.5 to 1.5
Iron (Fe), % 0.5 to 1.0
35.5 to 46.2
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0 to 1.0
0 to 3.0
Molybdenum (Mo), % 0
6.5 to 8.0
Nickel (Ni), % 15 to 18
26 to 28
Nitrogen (N), % 0
0.3 to 0.4
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0
0 to 0.010
Zinc (Zn), % 0 to 1.0
0
Residuals, % 0 to 0.2
0