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C18700 Copper vs. AWS E307

C18700 copper belongs to the copper alloys classification, while AWS E307 belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is C18700 copper and the bottom bar is AWS E307.

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
78
Tensile Strength: Ultimate (UTS), MPa 290 to 330
660

Thermal Properties

Latent Heat of Fusion, J/g 210
290
Melting Completion (Liquidus), °C 1080
1420
Melting Onset (Solidus), °C 950
1370
Specific Heat Capacity, J/kg-K 380
480
Thermal Conductivity, W/m-K 380
15
Thermal Expansion, µm/m-K 17
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 98
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 99
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 30
17
Density, g/cm3 9.0
7.8
Embodied Carbon, kg CO2/kg material 2.6
3.5
Embodied Energy, MJ/kg 41
49
Embodied Water, L/kg 310
160

Common Calculations

Stiffness to Weight: Axial, points 7.1
14
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 9.0 to 10
24
Strength to Weight: Bending, points 11 to 12
22
Thermal Diffusivity, mm2/s 110
4.1
Thermal Shock Resistance, points 10 to 12
17

Alloy Composition

Carbon (C), % 0
0.040 to 0.14
Chromium (Cr), % 0
18 to 21.5
Copper (Cu), % 98 to 99.2
0 to 0.75
Iron (Fe), % 0
59.6 to 69.2
Lead (Pb), % 0.8 to 1.5
0
Manganese (Mn), % 0
3.3 to 4.8
Molybdenum (Mo), % 0
0.5 to 1.5
Nickel (Ni), % 0
9.0 to 10.7
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Residuals, % 0 to 0.5
0