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C18700 Copper vs. AWS ER90S-B9

C18700 copper belongs to the copper alloys classification, while AWS ER90S-B9 belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is C18700 copper and the bottom bar is AWS ER90S-B9.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 9.0 to 9.6
18
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 43
75
Tensile Strength: Ultimate (UTS), MPa 290 to 330
690
Tensile Strength: Yield (Proof), MPa 230 to 250
470

Thermal Properties

Latent Heat of Fusion, J/g 210
270
Melting Completion (Liquidus), °C 1080
1450
Melting Onset (Solidus), °C 950
1410
Specific Heat Capacity, J/kg-K 380
470
Thermal Conductivity, W/m-K 380
25
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 98
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 99
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 30
7.0
Density, g/cm3 9.0
7.8
Embodied Carbon, kg CO2/kg material 2.6
2.6
Embodied Energy, MJ/kg 41
37
Embodied Water, L/kg 310
91

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 29
110
Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 280
570
Stiffness to Weight: Axial, points 7.1
14
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 9.0 to 10
25
Strength to Weight: Bending, points 11 to 12
22
Thermal Diffusivity, mm2/s 110
6.9
Thermal Shock Resistance, points 10 to 12
19

Alloy Composition

Aluminum (Al), % 0
0 to 0.040
Carbon (C), % 0
0.070 to 0.13
Chromium (Cr), % 0
8.0 to 10.5
Copper (Cu), % 98 to 99.2
0 to 0.2
Iron (Fe), % 0
84.4 to 90.7
Lead (Pb), % 0.8 to 1.5
0
Manganese (Mn), % 0
0 to 1.2
Molybdenum (Mo), % 0
0.85 to 1.2
Nickel (Ni), % 0
0 to 0.8
Niobium (Nb), % 0
0.020 to 0.1
Nitrogen (N), % 0
0.030 to 0.070
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0
0.15 to 0.5
Sulfur (S), % 0
0 to 0.010
Vanadium (V), % 0
0.15 to 0.3
Residuals, % 0
0 to 0.5