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C71640 Copper-nickel vs. S28200 Stainless Steel

C71640 copper-nickel belongs to the copper alloys classification, while S28200 stainless steel belongs to the iron alloys. There are 22 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is C71640 copper-nickel and the bottom bar is S28200 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
200
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 52
77
Tensile Strength: Ultimate (UTS), MPa 490 to 630
870
Tensile Strength: Yield (Proof), MPa 190 to 460
460

Thermal Properties

Latent Heat of Fusion, J/g 240
290
Maximum Temperature: Mechanical, °C 260
900
Melting Completion (Liquidus), °C 1180
1380
Melting Onset (Solidus), °C 1120
1330
Specific Heat Capacity, J/kg-K 410
480
Thermal Expansion, µm/m-K 15
18

Otherwise Unclassified Properties

Base Metal Price, % relative 40
12
Density, g/cm3 8.9
7.6
Embodied Carbon, kg CO2/kg material 5.0
2.8
Embodied Energy, MJ/kg 73
41
Embodied Water, L/kg 280
160

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 750
540
Stiffness to Weight: Axial, points 8.7
15
Stiffness to Weight: Bending, points 20
26
Strength to Weight: Axial, points 15 to 20
32
Strength to Weight: Bending, points 16 to 18
27
Thermal Shock Resistance, points 16 to 21
17

Alloy Composition

Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0
17 to 19
Copper (Cu), % 61.7 to 67.8
0.75 to 1.3
Iron (Fe), % 1.7 to 2.3
57.7 to 64.1
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 1.5 to 2.5
17 to 19
Molybdenum (Mo), % 0
0.75 to 1.3
Nickel (Ni), % 29 to 32
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
Zinc (Zn), % 0 to 1.0
0
Residuals, % 0 to 0.5
0