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C96300 Copper-nickel vs. S31730 Stainless Steel

C96300 copper-nickel belongs to the copper alloys classification, while S31730 stainless steel belongs to the iron alloys. They have a modest 22% 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 (9, in this case) are not shown.

For each property being compared, the top bar is C96300 copper-nickel and the bottom bar is S31730 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
180
Elastic (Young's, Tensile) Modulus, GPa 130
200
Elongation at Break, % 11
40
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 49
77
Tensile Strength: Ultimate (UTS), MPa 580
540
Tensile Strength: Yield (Proof), MPa 430
200

Thermal Properties

Latent Heat of Fusion, J/g 230
290
Maximum Temperature: Mechanical, °C 240
990
Melting Completion (Liquidus), °C 1200
1430
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
4.6
Embodied Energy, MJ/kg 76
63
Embodied Water, L/kg 290
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 59
170
Resilience: Unit (Modulus of Resilience), kJ/m3 720
99
Stiffness to Weight: Axial, points 8.2
14
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 18
19
Strength to Weight: Bending, points 17
18
Thermal Shock Resistance, points 20
12

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.030
Chromium (Cr), % 0
17 to 19
Copper (Cu), % 72.3 to 80.8
4.0 to 5.0
Iron (Fe), % 0.5 to 1.5
52.4 to 61
Lead (Pb), % 0 to 0.010
0
Manganese (Mn), % 0.25 to 1.5
0 to 2.0
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 18 to 22
15 to 16.5
Niobium (Nb), % 0.5 to 1.5
0
Nitrogen (N), % 0
0 to 0.045
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.010
Residuals, % 0 to 0.5
0