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C18700 Copper vs. AWS E320LR

C18700 copper belongs to the copper alloys classification, while AWS E320LR belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is C18700 copper and the bottom bar is AWS E320LR.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 9.0 to 9.6
34
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 43
77
Tensile Strength: Ultimate (UTS), MPa 290 to 330
580

Thermal Properties

Latent Heat of Fusion, J/g 210
300
Melting Completion (Liquidus), °C 1080
1410
Melting Onset (Solidus), °C 950
1360
Specific Heat Capacity, J/kg-K 380
460
Thermal Expansion, µm/m-K 17
14

Otherwise Unclassified Properties

Base Metal Price, % relative 30
36
Density, g/cm3 9.0
8.2
Embodied Carbon, kg CO2/kg material 2.6
6.2
Embodied Energy, MJ/kg 41
87
Embodied Water, L/kg 310
220

Common Calculations

Stiffness to Weight: Axial, points 7.1
13
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 9.0 to 10
20
Strength to Weight: Bending, points 11 to 12
19
Thermal Shock Resistance, points 10 to 12
15

Alloy Composition

Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
19 to 21
Copper (Cu), % 98 to 99.2
3.0 to 4.0
Iron (Fe), % 0
32.7 to 42.5
Lead (Pb), % 0.8 to 1.5
0
Manganese (Mn), % 0
1.5 to 2.5
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0
32 to 36
Niobium (Nb), % 0
0 to 0.4
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0
0 to 0.3
Sulfur (S), % 0
0 to 0.015
Residuals, % 0 to 0.5
0