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AWS BAg-18 vs. C18400 Copper

AWS BAg-18 belongs to the otherwise unclassified metals classification, while C18400 copper belongs to the copper alloys. They have a modest 30% of their average alloy composition in common, which, by itself, doesn't mean much. There are 17 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is AWS BAg-18 and the bottom bar is C18400 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 82
120
Poisson's Ratio 0.36
0.34
Shear Modulus, GPa 30
44
Tensile Strength: Ultimate (UTS), MPa 170
270 to 490

Thermal Properties

Latent Heat of Fusion, J/g 130
210
Melting Completion (Liquidus), °C 720
1080
Melting Onset (Solidus), °C 600
1070
Specific Heat Capacity, J/kg-K 280
390
Thermal Expansion, µm/m-K 19
17

Otherwise Unclassified Properties

Density, g/cm3 9.7
8.9
Embodied Carbon, kg CO2/kg material 59
2.6
Embodied Energy, MJ/kg 930
41

Common Calculations

Stiffness to Weight: Axial, points 4.7
7.3
Stiffness to Weight: Bending, points 15
18
Strength to Weight: Axial, points 4.9
8.5 to 15
Strength to Weight: Bending, points 7.0
10 to 16
Thermal Shock Resistance, points 7.7
9.6 to 17

Alloy Composition

Arsenic (As), % 0
0 to 0.0050
Calcium (Ca), % 0
0 to 0.0050
Chromium (Cr), % 0
0.4 to 1.2
Copper (Cu), % 28.4 to 31.5
97.2 to 99.6
Iron (Fe), % 0
0 to 0.15
Lithium (Li), % 0
0 to 0.050
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0
0 to 0.1
Silver (Ag), % 59 to 61
0
Tin (Sn), % 9.5 to 10.5
0
Zinc (Zn), % 0
0 to 0.7
Residuals, % 0
0 to 0.5