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AWS E80C-W2 vs. C71640 Copper-nickel

AWS E80C-W2 belongs to the iron alloys classification, while C71640 copper-nickel belongs to the copper alloys. There are 25 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is AWS E80C-W2 and the bottom bar is C71640 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
140
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 72
52
Tensile Strength: Ultimate (UTS), MPa 620
490 to 630
Tensile Strength: Yield (Proof), MPa 540
190 to 460

Thermal Properties

Latent Heat of Fusion, J/g 260
240
Melting Completion (Liquidus), °C 1450
1180
Melting Onset (Solidus), °C 1410
1120
Specific Heat Capacity, J/kg-K 470
410
Thermal Conductivity, W/m-K 39
29
Thermal Expansion, µm/m-K 13
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
7.1

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
40
Density, g/cm3 7.8
8.9
Embodied Carbon, kg CO2/kg material 1.5
5.0
Embodied Energy, MJ/kg 20
73
Embodied Water, L/kg 51
280

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 770
130 to 750
Stiffness to Weight: Axial, points 13
8.7
Stiffness to Weight: Bending, points 24
20
Strength to Weight: Axial, points 22
15 to 20
Strength to Weight: Bending, points 21
16 to 18
Thermal Diffusivity, mm2/s 10
8.2
Thermal Shock Resistance, points 18
16 to 21

Alloy Composition

Carbon (C), % 0 to 0.12
0
Chromium (Cr), % 0.45 to 0.7
0
Copper (Cu), % 0.3 to 0.75
61.7 to 67.8
Iron (Fe), % 94.9 to 98
1.7 to 2.3
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0.5 to 1.3
1.5 to 2.5
Nickel (Ni), % 0.4 to 0.8
29 to 32
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0.35 to 0.8
0
Sulfur (S), % 0 to 0.030
0
Vanadium (V), % 0 to 0.030
0
Zinc (Zn), % 0
0 to 1.0
Residuals, % 0
0 to 0.5