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C72700 Copper-nickel vs. AWS E308L

C72700 copper-nickel belongs to the copper alloys classification, while AWS E308L belongs to the iron alloys. There are 24 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 AWS E308L.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 4.0 to 36
40
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 44
78
Tensile Strength: Ultimate (UTS), MPa 460 to 1070
580

Thermal Properties

Latent Heat of Fusion, J/g 210
290
Melting Completion (Liquidus), °C 1100
1420
Melting Onset (Solidus), °C 930
1380
Specific Heat Capacity, J/kg-K 380
480
Thermal Conductivity, W/m-K 54
16
Thermal Expansion, µm/m-K 17
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 11
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 36
16
Density, g/cm3 8.8
7.8
Embodied Carbon, kg CO2/kg material 4.0
3.2
Embodied Energy, MJ/kg 62
46
Embodied Water, L/kg 350
150

Common Calculations

Stiffness to Weight: Axial, points 7.4
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 14 to 34
21
Strength to Weight: Bending, points 15 to 26
20
Thermal Diffusivity, mm2/s 16
4.1
Thermal Shock Resistance, points 16 to 38
15

Alloy Composition

Carbon (C), % 0
0 to 0.040
Chromium (Cr), % 0
18 to 21
Copper (Cu), % 82.1 to 86
0 to 0.75
Iron (Fe), % 0 to 0.5
62.9 to 72.5
Lead (Pb), % 0 to 0.020
0
Magnesium (Mg), % 0 to 0.15
0
Manganese (Mn), % 0.050 to 0.3
0.5 to 2.5
Molybdenum (Mo), % 0
0 to 0.75
Nickel (Ni), % 8.5 to 9.5
9.0 to 11
Niobium (Nb), % 0 to 0.1
0
Phosphorus (P), % 0
0 to 0.040
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