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AWS BVAg-18 vs. AWS BAu-1

Both AWS BVAg-18 and AWS BAu-1 are otherwise unclassified metals. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a modest 30% of their average alloy composition in common, which, by itself, doesn't mean much. There are 16 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is AWS BVAg-18 and the bottom bar is AWS BAu-1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 82
110
Poisson's Ratio 0.36
0.37
Shear Modulus, GPa 30
40
Tensile Strength: Ultimate (UTS), MPa 180
210

Thermal Properties

Brazing Temperature, °C 720 to 840
1020 to 1090
Latent Heat of Fusion, J/g 140
150
Melting Completion (Liquidus), °C 720
1020
Melting Onset (Solidus), °C 600
990
Specific Heat Capacity, J/kg-K 280
290
Thermal Expansion, µm/m-K 19
16

Otherwise Unclassified Properties

Density, g/cm3 9.7
13

Common Calculations

Stiffness to Weight: Axial, points 4.7
4.7
Stiffness to Weight: Bending, points 15
12
Strength to Weight: Axial, points 5.1
4.5
Strength to Weight: Bending, points 7.3
6.1
Thermal Shock Resistance, points 8.1
8.5

Alloy Composition

Cadmium (Cd), % 0 to 0.0010
0
Carbon (C), % 0 to 0.0050
0
Copper (Cu), % 28.5 to 31.5
61.9 to 63
Gold (Au), % 0
37 to 38
Lead (Pb), % 0 to 0.0020
0
Phosphorus (P), % 0 to 0.0020
0
Silver (Ag), % 59 to 61
0
Tin (Sn), % 9.5 to 10.5
0
Zinc (Zn), % 0 to 0.0010
0
Residuals, % 0
0 to 0.15