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C72700 Copper-nickel vs. EN 1.4020 Stainless Steel

C72700 copper-nickel belongs to the copper alloys classification, while EN 1.4020 stainless steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is C72700 copper-nickel and the bottom bar is EN 1.4020 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 4.0 to 36
13 to 34
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 44
77
Shear Strength, MPa 310 to 620
510 to 680
Tensile Strength: Ultimate (UTS), MPa 460 to 1070
770 to 1130
Tensile Strength: Yield (Proof), MPa 580 to 1060
430 to 950

Thermal Properties

Latent Heat of Fusion, J/g 210
280
Maximum Temperature: Mechanical, °C 200
890
Melting Completion (Liquidus), °C 1100
1390
Melting Onset (Solidus), °C 930
1350
Specific Heat Capacity, J/kg-K 380
480
Thermal Expansion, µm/m-K 17
17

Otherwise Unclassified Properties

Base Metal Price, % relative 36
11
Density, g/cm3 8.8
7.6
Embodied Carbon, kg CO2/kg material 4.0
2.5
Embodied Energy, MJ/kg 62
37
Embodied Water, L/kg 350
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20 to 380
140 to 220
Resilience: Unit (Modulus of Resilience), kJ/m3 1420 to 4770
460 to 2290
Stiffness to Weight: Axial, points 7.4
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 14 to 34
28 to 41
Strength to Weight: Bending, points 15 to 26
25 to 32
Thermal Shock Resistance, points 16 to 38
16 to 23

Alloy Composition

Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0
16.5 to 19
Copper (Cu), % 82.1 to 86
0
Iron (Fe), % 0 to 0.5
62.8 to 71.8
Lead (Pb), % 0 to 0.020
0
Magnesium (Mg), % 0 to 0.15
0
Manganese (Mn), % 0.050 to 0.3
11 to 14
Nickel (Ni), % 8.5 to 9.5
0.5 to 2.5
Niobium (Nb), % 0 to 0.1
0
Nitrogen (N), % 0
0.2 to 0.45
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 5.5 to 6.5
0
Zinc (Zn), % 0 to 0.5
0
Residuals, % 0 to 0.3
0