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AWS BAg-8 vs. AWS BAg-18

Both AWS BAg-8 and AWS BAg-18 are otherwise unclassified metals. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 88% of their average alloy composition in common. 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 BAg-8 and the bottom bar is AWS BAg-18.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 84
82
Poisson's Ratio 0.36
0.36
Shear Modulus, GPa 31
30
Tensile Strength: Ultimate (UTS), MPa 150
170

Thermal Properties

Brazing Temperature, °C 770 to 890
720 to 980
Latent Heat of Fusion, J/g 140
130
Melting Completion (Liquidus), °C 780
720
Melting Onset (Solidus), °C 780
600
Specific Heat Capacity, J/kg-K 280
280
Thermal Expansion, µm/m-K 19
19

Otherwise Unclassified Properties

Density, g/cm3 10
9.7

Common Calculations

Stiffness to Weight: Axial, points 4.6
4.7
Stiffness to Weight: Bending, points 14
15
Strength to Weight: Axial, points 4.1
4.9
Strength to Weight: Bending, points 6.2
7.0
Thermal Shock Resistance, points 6.7
7.7

Alloy Composition


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Copper (Cu), % 26.9 to 29
28.4 to 31.5
Silver (Ag), % 71 to 73
59 to 61
Tin (Sn), % 0
9.5 to 10.5
Residuals, % 0 to 0.15
0 to 0.15