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C72700 Copper-nickel vs. S34565 Stainless Steel

C72700 copper-nickel belongs to the copper alloys classification, while S34565 stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is C72700 copper-nickel and the bottom bar is S34565 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
210
Elongation at Break, % 4.0 to 36
39
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 44
80
Shear Strength, MPa 310 to 620
610
Tensile Strength: Ultimate (UTS), MPa 460 to 1070
900
Tensile Strength: Yield (Proof), MPa 580 to 1060
470

Thermal Properties

Latent Heat of Fusion, J/g 210
310
Maximum Temperature: Mechanical, °C 200
1100
Melting Completion (Liquidus), °C 1100
1420
Melting Onset (Solidus), °C 930
1380
Specific Heat Capacity, J/kg-K 380
470
Thermal Conductivity, W/m-K 54
12
Thermal Expansion, µm/m-K 17
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 11
2.1

Otherwise Unclassified Properties

Base Metal Price, % relative 36
28
Density, g/cm3 8.8
7.9
Embodied Carbon, kg CO2/kg material 4.0
5.3
Embodied Energy, MJ/kg 62
73
Embodied Water, L/kg 350
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20 to 380
300
Resilience: Unit (Modulus of Resilience), kJ/m3 1420 to 4770
540
Stiffness to Weight: Axial, points 7.4
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 14 to 34
32
Strength to Weight: Bending, points 15 to 26
26
Thermal Diffusivity, mm2/s 16
3.2
Thermal Shock Resistance, points 16 to 38
22

Alloy Composition

Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
23 to 25
Copper (Cu), % 82.1 to 86
0
Iron (Fe), % 0 to 0.5
43.2 to 51.6
Lead (Pb), % 0 to 0.020
0
Magnesium (Mg), % 0 to 0.15
0
Manganese (Mn), % 0.050 to 0.3
5.0 to 7.0
Molybdenum (Mo), % 0
4.0 to 5.0
Nickel (Ni), % 8.5 to 9.5
16 to 18
Niobium (Nb), % 0 to 0.1
0 to 0.1
Nitrogen (N), % 0
0.4 to 0.6
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.010
Tin (Sn), % 5.5 to 6.5
0
Zinc (Zn), % 0 to 0.5
0
Residuals, % 0 to 0.3
0