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C72150 Copper-nickel vs. S32950 Stainless Steel

C72150 copper-nickel belongs to the copper alloys classification, while S32950 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is C72150 copper-nickel and the bottom bar is S32950 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 99
260
Elastic (Young's, Tensile) Modulus, GPa 150
200
Elongation at Break, % 29
17
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 55
80
Shear Strength, MPa 320
480
Tensile Strength: Ultimate (UTS), MPa 490
780
Tensile Strength: Yield (Proof), MPa 210
550

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 600
1100
Melting Completion (Liquidus), °C 1210
1430
Melting Onset (Solidus), °C 1250
1390
Specific Heat Capacity, J/kg-K 410
480
Thermal Conductivity, W/m-K 22
16
Thermal Expansion, µm/m-K 14
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.5
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 3.6
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 45
17
Density, g/cm3 8.9
7.7
Embodied Carbon, kg CO2/kg material 6.1
3.4
Embodied Energy, MJ/kg 88
47
Embodied Water, L/kg 270
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
120
Resilience: Unit (Modulus of Resilience), kJ/m3 150
730
Stiffness to Weight: Axial, points 9.1
15
Stiffness to Weight: Bending, points 20
25
Strength to Weight: Axial, points 15
28
Strength to Weight: Bending, points 15
24
Thermal Diffusivity, mm2/s 6.0
4.3
Thermal Shock Resistance, points 18
21

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.030
Chromium (Cr), % 0
26 to 29
Copper (Cu), % 52.5 to 57
0
Iron (Fe), % 0 to 0.1
60.3 to 69.4
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0 to 0.050
0 to 2.0
Molybdenum (Mo), % 0
1.0 to 2.5
Nickel (Ni), % 43 to 46
3.5 to 5.2
Nitrogen (N), % 0
0.15 to 0.35
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.5
0 to 0.6
Sulfur (S), % 0
0 to 0.010
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.5
0