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C72700 Copper-nickel vs. EN 1.4971 Stainless Steel

C72700 copper-nickel belongs to the copper alloys classification, while EN 1.4971 stainless steel belongs to the iron alloys. There are 27 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 C72700 copper-nickel and the bottom bar is EN 1.4971 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
210
Elongation at Break, % 4.0 to 36
34
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 44
81
Shear Strength, MPa 310 to 620
530
Tensile Strength: Ultimate (UTS), MPa 460 to 1070
800
Tensile Strength: Yield (Proof), MPa 580 to 1060
340

Thermal Properties

Latent Heat of Fusion, J/g 210
300
Maximum Temperature: Mechanical, °C 200
1100
Melting Completion (Liquidus), °C 1100
1460
Melting Onset (Solidus), °C 930
1410
Specific Heat Capacity, J/kg-K 380
450
Thermal Conductivity, W/m-K 54
13
Thermal Expansion, µm/m-K 17
15

Otherwise Unclassified Properties

Base Metal Price, % relative 36
70
Density, g/cm3 8.8
8.4
Embodied Carbon, kg CO2/kg material 4.0
7.6
Embodied Energy, MJ/kg 62
110
Embodied Water, L/kg 350
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20 to 380
220
Resilience: Unit (Modulus of Resilience), kJ/m3 1420 to 4770
280
Stiffness to Weight: Axial, points 7.4
14
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 14 to 34
26
Strength to Weight: Bending, points 15 to 26
23
Thermal Diffusivity, mm2/s 16
3.4
Thermal Shock Resistance, points 16 to 38
19

Alloy Composition

Carbon (C), % 0
0.080 to 0.16
Chromium (Cr), % 0
20 to 22.5
Cobalt (Co), % 0
18.5 to 21
Copper (Cu), % 82.1 to 86
0
Iron (Fe), % 0 to 0.5
24.3 to 37.1
Lead (Pb), % 0 to 0.020
0
Magnesium (Mg), % 0 to 0.15
0
Manganese (Mn), % 0.050 to 0.3
0 to 2.0
Molybdenum (Mo), % 0
2.5 to 3.5
Nickel (Ni), % 8.5 to 9.5
19 to 21
Niobium (Nb), % 0 to 0.1
0.75 to 1.3
Nitrogen (N), % 0
0.1 to 0.2
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Tin (Sn), % 5.5 to 6.5
0
Tungsten (W), % 0
2.0 to 3.0
Zinc (Zn), % 0 to 0.5
0
Residuals, % 0 to 0.3
0