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C70400 Copper-nickel vs. S21600 Stainless Steel

C70400 copper-nickel belongs to the copper alloys classification, while S21600 stainless steel belongs to the iron alloys. There are 22 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is C70400 copper-nickel and the bottom bar is S21600 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 45
79
Tensile Strength: Ultimate (UTS), MPa 300 to 310
710
Tensile Strength: Yield (Proof), MPa 95 to 230
390

Thermal Properties

Latent Heat of Fusion, J/g 210
290
Maximum Temperature: Mechanical, °C 210
990
Melting Completion (Liquidus), °C 1120
1420
Melting Onset (Solidus), °C 1060
1380
Specific Heat Capacity, J/kg-K 390
480
Thermal Expansion, µm/m-K 17
17

Otherwise Unclassified Properties

Base Metal Price, % relative 32
17
Density, g/cm3 8.9
7.7
Embodied Carbon, kg CO2/kg material 3.0
3.6
Embodied Energy, MJ/kg 47
50
Embodied Water, L/kg 300
160

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 38 to 220
370
Stiffness to Weight: Axial, points 7.5
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 9.3 to 9.8
25
Strength to Weight: Bending, points 11 to 12
23
Thermal Shock Resistance, points 10 to 11
15

Alloy Composition

Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
17.5 to 22
Copper (Cu), % 89.8 to 93.6
0
Iron (Fe), % 1.3 to 1.7
57.6 to 67.8
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0.3 to 0.8
7.5 to 9.0
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 4.8 to 6.2
5.0 to 7.0
Nitrogen (N), % 0
0.25 to 0.5
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 0 to 1.0
0
Residuals, % 0 to 0.5
0