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C96300 Copper-nickel vs. S31727 Stainless Steel

C96300 copper-nickel belongs to the copper alloys classification, while S31727 stainless steel belongs to the iron alloys. They have a modest 21% of their average alloy composition in common, which, by itself, doesn't mean much. There are 25 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is C96300 copper-nickel and the bottom bar is S31727 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
190
Elastic (Young's, Tensile) Modulus, GPa 130
200
Elongation at Break, % 11
40
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 49
78
Tensile Strength: Ultimate (UTS), MPa 580
630
Tensile Strength: Yield (Proof), MPa 430
270

Thermal Properties

Latent Heat of Fusion, J/g 230
290
Maximum Temperature: Mechanical, °C 240
1010
Melting Completion (Liquidus), °C 1200
1440
Melting Onset (Solidus), °C 1150
1390
Specific Heat Capacity, J/kg-K 400
470
Thermal Expansion, µm/m-K 16
16

Otherwise Unclassified Properties

Base Metal Price, % relative 42
24
Density, g/cm3 8.9
8.0
Embodied Carbon, kg CO2/kg material 5.1
4.7
Embodied Energy, MJ/kg 76
64
Embodied Water, L/kg 290
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 59
200
Resilience: Unit (Modulus of Resilience), kJ/m3 720
190
Stiffness to Weight: Axial, points 8.2
14
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 18
22
Strength to Weight: Bending, points 17
20
Thermal Shock Resistance, points 20
14

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.030
Chromium (Cr), % 0
17.5 to 19
Copper (Cu), % 72.3 to 80.8
2.8 to 4.0
Iron (Fe), % 0.5 to 1.5
53.7 to 61.3
Lead (Pb), % 0 to 0.010
0
Manganese (Mn), % 0.25 to 1.5
0 to 1.0
Molybdenum (Mo), % 0
3.8 to 4.5
Nickel (Ni), % 18 to 22
14.5 to 16.5
Niobium (Nb), % 0.5 to 1.5
0
Nitrogen (N), % 0
0.15 to 0.21
Phosphorus (P), % 0 to 0.020
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.030
Residuals, % 0 to 0.5
0