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C71500 Copper-nickel vs. S35135 Stainless Steel

C71500 copper-nickel belongs to the copper alloys classification, while S35135 stainless steel belongs to the iron alloys. They have a modest 33% of their average alloy composition in common, which, by itself, doesn't mean much. 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 C71500 copper-nickel and the bottom bar is S35135 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
200
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 52
79
Tensile Strength: Ultimate (UTS), MPa 380 to 620
590

Thermal Properties

Latent Heat of Fusion, J/g 230
320
Maximum Temperature: Mechanical, °C 260
1100
Melting Completion (Liquidus), °C 1240
1430
Melting Onset (Solidus), °C 1170
1380
Specific Heat Capacity, J/kg-K 400
470
Thermal Expansion, µm/m-K 16
16

Otherwise Unclassified Properties

Base Metal Price, % relative 41
37
Density, g/cm3 8.9
8.1
Embodied Carbon, kg CO2/kg material 5.1
6.8
Embodied Energy, MJ/kg 74
94
Embodied Water, L/kg 280
220

Common Calculations

Stiffness to Weight: Axial, points 8.6
14
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 12 to 19
20
Strength to Weight: Bending, points 13 to 18
19
Thermal Shock Resistance, points 12 to 20
13

Alloy Composition

Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
20 to 25
Copper (Cu), % 63.5 to 70.6
0 to 0.75
Iron (Fe), % 0.4 to 1.0
28.3 to 45
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0
4.0 to 4.8
Nickel (Ni), % 29 to 33
30 to 38
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0
0.6 to 1.0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0
0.4 to 1.0
Zinc (Zn), % 0 to 1.0
0
Residuals, % 0 to 0.5
0