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C96400 Copper-nickel vs. N08031 Stainless Steel

C96400 copper-nickel belongs to the copper alloys classification, while N08031 stainless steel belongs to the iron alloys. They have a modest 33% of their average alloy composition in common, which, by itself, doesn't mean much. There are 26 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 C96400 copper-nickel and the bottom bar is N08031 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
210
Elongation at Break, % 25
45
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 51
81
Tensile Strength: Ultimate (UTS), MPa 490
730
Tensile Strength: Yield (Proof), MPa 260
310

Thermal Properties

Latent Heat of Fusion, J/g 240
310
Maximum Temperature: Mechanical, °C 260
1100
Melting Completion (Liquidus), °C 1240
1440
Melting Onset (Solidus), °C 1170
1390
Specific Heat Capacity, J/kg-K 400
460
Thermal Conductivity, W/m-K 28
12
Thermal Expansion, µm/m-K 15
18

Otherwise Unclassified Properties

Base Metal Price, % relative 45
39
Density, g/cm3 8.9
8.1
Embodied Carbon, kg CO2/kg material 5.9
7.1
Embodied Energy, MJ/kg 87
96
Embodied Water, L/kg 280
240

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
270
Resilience: Unit (Modulus of Resilience), kJ/m3 250
230
Stiffness to Weight: Axial, points 8.6
14
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 15
25
Strength to Weight: Bending, points 16
22
Thermal Diffusivity, mm2/s 7.8
3.1
Thermal Shock Resistance, points 17
14

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.015
Chromium (Cr), % 0
26 to 28
Copper (Cu), % 62.3 to 71.3
1.0 to 1.4
Iron (Fe), % 0.25 to 1.5
29 to 36.9
Lead (Pb), % 0 to 0.010
0
Manganese (Mn), % 0 to 1.5
0 to 2.0
Molybdenum (Mo), % 0
6.0 to 7.0
Nickel (Ni), % 28 to 32
30 to 32
Niobium (Nb), % 0.5 to 1.5
0
Nitrogen (N), % 0
0.15 to 0.25
Phosphorus (P), % 0 to 0.020
0 to 0.020
Silicon (Si), % 0 to 0.5
0 to 0.3
Sulfur (S), % 0 to 0.020
0 to 0.010
Residuals, % 0 to 0.5
0