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C96400 Copper-nickel vs. S40977 Stainless Steel

C96400 copper-nickel belongs to the copper alloys classification, while S40977 stainless steel belongs to the iron alloys. There are 28 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 S40977 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
190
Elongation at Break, % 25
21
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 51
76
Tensile Strength: Ultimate (UTS), MPa 490
510
Tensile Strength: Yield (Proof), MPa 260
310

Thermal Properties

Latent Heat of Fusion, J/g 240
270
Maximum Temperature: Mechanical, °C 260
720
Melting Completion (Liquidus), °C 1240
1440
Melting Onset (Solidus), °C 1170
1400
Specific Heat Capacity, J/kg-K 400
480
Thermal Conductivity, W/m-K 28
25
Thermal Expansion, µm/m-K 15
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 5.0
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 5.1
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 45
6.5
Density, g/cm3 8.9
7.8
Embodied Carbon, kg CO2/kg material 5.9
1.9
Embodied Energy, MJ/kg 87
27
Embodied Water, L/kg 280
97

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
92
Resilience: Unit (Modulus of Resilience), kJ/m3 250
250
Stiffness to Weight: Axial, points 8.6
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 15
18
Strength to Weight: Bending, points 16
18
Thermal Diffusivity, mm2/s 7.8
6.7
Thermal Shock Resistance, points 17
18

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.030
Chromium (Cr), % 0
10.5 to 12.5
Copper (Cu), % 62.3 to 71.3
0
Iron (Fe), % 0.25 to 1.5
83.9 to 89.2
Lead (Pb), % 0 to 0.010
0
Manganese (Mn), % 0 to 1.5
0 to 1.5
Nickel (Ni), % 28 to 32
0.3 to 1.0
Niobium (Nb), % 0.5 to 1.5
0
Nitrogen (N), % 0
0 to 0.030
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 0.015
Residuals, % 0 to 0.5
0