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C71520 Copper-nickel vs. S41050 Stainless Steel

C71520 copper-nickel belongs to the copper alloys classification, while S41050 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is C71520 copper-nickel and the bottom bar is S41050 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
190
Elongation at Break, % 10 to 45
25
Poisson's Ratio 0.33
0.28
Rockwell B Hardness 35 to 86
77
Shear Modulus, GPa 51
76
Shear Strength, MPa 250 to 340
300
Tensile Strength: Ultimate (UTS), MPa 370 to 570
470
Tensile Strength: Yield (Proof), MPa 140 to 430
230

Thermal Properties

Latent Heat of Fusion, J/g 230
270
Maximum Temperature: Mechanical, °C 260
720
Melting Completion (Liquidus), °C 1170
1440
Melting Onset (Solidus), °C 1120
1400
Specific Heat Capacity, J/kg-K 400
480
Thermal Conductivity, W/m-K 32
27
Thermal Expansion, µm/m-K 15
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 5.7
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 5.8
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 40
7.0
Density, g/cm3 8.9
7.8
Embodied Carbon, kg CO2/kg material 5.0
1.9
Embodied Energy, MJ/kg 73
27
Embodied Water, L/kg 280
97

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 54 to 130
98
Resilience: Unit (Modulus of Resilience), kJ/m3 67 to 680
140
Stiffness to Weight: Axial, points 8.6
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 12 to 18
17
Strength to Weight: Bending, points 13 to 17
17
Thermal Diffusivity, mm2/s 8.9
7.2
Thermal Shock Resistance, points 12 to 19
17

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.040
Chromium (Cr), % 0
10.5 to 12.5
Copper (Cu), % 65 to 71.6
0
Iron (Fe), % 0.4 to 1.0
84.2 to 88.9
Lead (Pb), % 0 to 0.020
0
Manganese (Mn), % 0 to 1.0
0 to 1.0
Nickel (Ni), % 28 to 33
0.6 to 1.1
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.2
0 to 0.045
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.030
Zinc (Zn), % 0 to 0.5
0
Residuals, % 0 to 0.5
0