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CR012A Copper vs. AWS E320LR

CR012A 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 (9, in this case) are not shown.

For each property being compared, the top bar is CR012A copper and the bottom bar is AWS E320LR.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 15
34
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 43
77
Tensile Strength: Ultimate (UTS), MPa 220
580

Thermal Properties

Latent Heat of Fusion, J/g 210
300
Melting Completion (Liquidus), °C 1090
1410
Melting Onset (Solidus), °C 1040
1360
Specific Heat Capacity, J/kg-K 390
460
Thermal Expansion, µm/m-K 17
14

Otherwise Unclassified Properties

Base Metal Price, % relative 33
36
Density, g/cm3 9.0
8.2
Embodied Carbon, kg CO2/kg material 2.7
6.2
Embodied Energy, MJ/kg 42
87
Embodied Water, L/kg 360
220

Common Calculations

Stiffness to Weight: Axial, points 7.2
13
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 6.8
20
Strength to Weight: Bending, points 9.0
19
Thermal Shock Resistance, points 7.8
15

Alloy Composition

Bismuth (Bi), % 0 to 0.00050
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
19 to 21
Copper (Cu), % 99.85 to 99.94
3.0 to 4.0
Iron (Fe), % 0
32.7 to 42.5
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
Oxygen (O), % 0 to 0.040
0
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0
0 to 0.3
Silver (Ag), % 0.060 to 0.080
0
Sulfur (S), % 0
0 to 0.015