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CR012A Copper vs. AWS E312

CR012A copper belongs to the copper alloys classification, while AWS E312 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 E312.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 15
25
Poisson's Ratio 0.34
0.27
Shear Modulus, GPa 43
80
Tensile Strength: Ultimate (UTS), MPa 220
740

Thermal Properties

Latent Heat of Fusion, J/g 210
310
Melting Completion (Liquidus), °C 1090
1410
Melting Onset (Solidus), °C 1040
1360
Specific Heat Capacity, J/kg-K 390
480
Thermal Expansion, µm/m-K 17
15

Otherwise Unclassified Properties

Base Metal Price, % relative 33
20
Density, g/cm3 9.0
7.7
Embodied Carbon, kg CO2/kg material 2.7
3.6
Embodied Energy, MJ/kg 42
52
Embodied Water, L/kg 360
200

Common Calculations

Stiffness to Weight: Axial, points 7.2
15
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 6.8
27
Strength to Weight: Bending, points 9.0
24
Thermal Shock Resistance, points 7.8
18

Alloy Composition

Bismuth (Bi), % 0 to 0.00050
0
Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0
28 to 32
Copper (Cu), % 99.85 to 99.94
0 to 0.75
Iron (Fe), % 0
52.3 to 63.5
Manganese (Mn), % 0
0.5 to 2.5
Molybdenum (Mo), % 0
0 to 0.75
Nickel (Ni), % 0
8.0 to 10.5
Oxygen (O), % 0 to 0.040
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Silver (Ag), % 0.060 to 0.080
0
Sulfur (S), % 0
0 to 0.030