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C72700 Copper-nickel vs. S28200 Stainless Steel

C72700 copper-nickel belongs to the copper alloys classification, while S28200 stainless steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is C72700 copper-nickel and the bottom bar is S28200 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 4.0 to 36
45
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 44
77
Shear Strength, MPa 310 to 620
610
Tensile Strength: Ultimate (UTS), MPa 460 to 1070
870
Tensile Strength: Yield (Proof), MPa 580 to 1060
460

Thermal Properties

Latent Heat of Fusion, J/g 210
290
Maximum Temperature: Mechanical, °C 200
900
Melting Completion (Liquidus), °C 1100
1380
Melting Onset (Solidus), °C 930
1330
Specific Heat Capacity, J/kg-K 380
480
Thermal Expansion, µm/m-K 17
18

Otherwise Unclassified Properties

Base Metal Price, % relative 36
12
Density, g/cm3 8.8
7.6
Embodied Carbon, kg CO2/kg material 4.0
2.8
Embodied Energy, MJ/kg 62
41
Embodied Water, L/kg 350
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20 to 380
330
Resilience: Unit (Modulus of Resilience), kJ/m3 1420 to 4770
540
Stiffness to Weight: Axial, points 7.4
15
Stiffness to Weight: Bending, points 19
26
Strength to Weight: Axial, points 14 to 34
32
Strength to Weight: Bending, points 15 to 26
27
Thermal Shock Resistance, points 16 to 38
17

Alloy Composition

Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0
17 to 19
Copper (Cu), % 82.1 to 86
0.75 to 1.3
Iron (Fe), % 0 to 0.5
57.7 to 64.1
Lead (Pb), % 0 to 0.020
0
Magnesium (Mg), % 0 to 0.15
0
Manganese (Mn), % 0.050 to 0.3
17 to 19
Molybdenum (Mo), % 0
0.75 to 1.3
Nickel (Ni), % 8.5 to 9.5
0
Niobium (Nb), % 0 to 0.1
0
Nitrogen (N), % 0
0.4 to 0.6
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 5.5 to 6.5
0
Zinc (Zn), % 0 to 0.5
0
Residuals, % 0 to 0.3
0