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C72900 Copper-nickel vs. S35140 Stainless Steel

C72900 copper-nickel belongs to the copper alloys classification, while S35140 stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is C72900 copper-nickel and the bottom bar is S35140 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 6.0 to 20
34
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 45
78
Shear Strength, MPa 540 to 630
460
Tensile Strength: Ultimate (UTS), MPa 870 to 1080
690
Tensile Strength: Yield (Proof), MPa 700 to 920
310

Thermal Properties

Latent Heat of Fusion, J/g 210
300
Maximum Temperature: Mechanical, °C 210
1100
Melting Completion (Liquidus), °C 1120
1420
Melting Onset (Solidus), °C 950
1370
Specific Heat Capacity, J/kg-K 380
470
Thermal Conductivity, W/m-K 29
14
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.8
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 39
31
Density, g/cm3 8.8
8.0
Embodied Carbon, kg CO2/kg material 4.6
5.5
Embodied Energy, MJ/kg 72
78
Embodied Water, L/kg 360
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 49 to 210
190
Resilience: Unit (Modulus of Resilience), kJ/m3 2030 to 3490
250
Stiffness to Weight: Axial, points 7.6
14
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 27 to 34
24
Strength to Weight: Bending, points 23 to 27
22
Thermal Diffusivity, mm2/s 8.6
3.7
Thermal Shock Resistance, points 31 to 38
16

Alloy Composition

Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0
20 to 22
Copper (Cu), % 74.1 to 78
0
Iron (Fe), % 0 to 0.5
44.1 to 52.7
Lead (Pb), % 0 to 0.020
0
Magnesium (Mg), % 0 to 0.15
0
Manganese (Mn), % 0 to 0.3
1.0 to 3.0
Molybdenum (Mo), % 0
1.0 to 2.0
Nickel (Ni), % 14.5 to 15.5
25 to 27
Niobium (Nb), % 0 to 0.1
0.25 to 0.75
Nitrogen (N), % 0
0.080 to 0.2
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 7.5 to 8.5
0
Zinc (Zn), % 0 to 0.5
0
Residuals, % 0 to 0.3
0