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AWS E312 vs. C70700 Copper-nickel

AWS E312 belongs to the iron alloys classification, while C70700 copper-nickel belongs to the copper alloys. There are 20 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is AWS E312 and the bottom bar is C70700 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 25
39
Poisson's Ratio 0.27
0.34
Shear Modulus, GPa 80
46
Tensile Strength: Ultimate (UTS), MPa 740
320

Thermal Properties

Latent Heat of Fusion, J/g 310
220
Melting Completion (Liquidus), °C 1410
1120
Melting Onset (Solidus), °C 1360
1060
Specific Heat Capacity, J/kg-K 480
390
Thermal Expansion, µm/m-K 15
16

Otherwise Unclassified Properties

Base Metal Price, % relative 20
34
Density, g/cm3 7.7
8.9
Embodied Carbon, kg CO2/kg material 3.6
3.4
Embodied Energy, MJ/kg 52
52
Embodied Water, L/kg 200
300

Common Calculations

Stiffness to Weight: Axial, points 15
7.6
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 27
10
Strength to Weight: Bending, points 24
12
Thermal Shock Resistance, points 18
12

Alloy Composition

Carbon (C), % 0 to 0.15
0
Chromium (Cr), % 28 to 32
0
Copper (Cu), % 0 to 0.75
88.5 to 90.5
Iron (Fe), % 52.3 to 63.5
0 to 0.050
Manganese (Mn), % 0.5 to 2.5
0 to 0.5
Molybdenum (Mo), % 0 to 0.75
0
Nickel (Ni), % 8.0 to 10.5
9.5 to 10.5
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Residuals, % 0
0 to 0.5