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C71520 Copper-nickel vs. EN 1.3956 Stainless Steel

C71520 copper-nickel belongs to the copper alloys classification, while EN 1.3956 stainless steel belongs to the iron alloys. There are 24 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 C71520 copper-nickel and the bottom bar is EN 1.3956 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
200
Elongation at Break, % 10 to 45
27
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 51
79
Tensile Strength: Ultimate (UTS), MPa 370 to 570
650
Tensile Strength: Yield (Proof), MPa 140 to 430
330

Thermal Properties

Latent Heat of Fusion, J/g 230
300
Maximum Temperature: Mechanical, °C 260
1080
Melting Completion (Liquidus), °C 1170
1420
Melting Onset (Solidus), °C 1120
1380
Specific Heat Capacity, J/kg-K 400
480
Thermal Expansion, µm/m-K 15
13

Otherwise Unclassified Properties

Base Metal Price, % relative 40
22
Density, g/cm3 8.9
7.8
Embodied Carbon, kg CO2/kg material 5.0
4.8
Embodied Energy, MJ/kg 73
68
Embodied Water, L/kg 280
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 54 to 130
150
Resilience: Unit (Modulus of Resilience), kJ/m3 67 to 680
270
Stiffness to Weight: Axial, points 8.6
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 12 to 18
23
Strength to Weight: Bending, points 13 to 17
21
Thermal Shock Resistance, points 12 to 19
18

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.060
Chromium (Cr), % 0
20.5 to 23.5
Copper (Cu), % 65 to 71.6
0
Iron (Fe), % 0.4 to 1.0
51.9 to 62.1
Lead (Pb), % 0 to 0.020
0
Manganese (Mn), % 0 to 1.0
4.0 to 6.0
Molybdenum (Mo), % 0
1.5 to 3.0
Nickel (Ni), % 28 to 33
11.5 to 13.5
Niobium (Nb), % 0
0.1 to 0.3
Nitrogen (N), % 0
0.2 to 0.4
Phosphorus (P), % 0 to 0.2
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.030
Vanadium (V), % 0
0.1 to 0.3
Zinc (Zn), % 0 to 0.5
0
Residuals, % 0 to 0.5
0