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AWS BAg-19 vs. AWS BAg-34

Both AWS BAg-19 and AWS BAg-34 are otherwise unclassified metals. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 45% 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-19 and the bottom bar is AWS BAg-34.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 74
89
Poisson's Ratio 0.37
0.33
Shear Modulus, GPa 27
34
Tensile Strength: Ultimate (UTS), MPa 140
170

Thermal Properties

Brazing Temperature, °C 770 to 980
680 to 840
Latent Heat of Fusion, J/g 120
140
Melting Completion (Liquidus), °C 890
720
Melting Onset (Solidus), °C 760
650
Specific Heat Capacity, J/kg-K 250
330
Thermal Expansion, µm/m-K 20
21

Otherwise Unclassified Properties

Density, g/cm3 10
8.8

Common Calculations

Stiffness to Weight: Axial, points 4.0
5.6
Stiffness to Weight: Bending, points 14
17
Strength to Weight: Axial, points 3.8
5.4
Strength to Weight: Bending, points 5.8
7.7
Thermal Shock Resistance, points 6.9
6.5

Alloy Composition

Copper (Cu), % 6.6 to 7.9
31 to 33
Lithium (Li), % 0.15 to 0.3
0
Silver (Ag), % 92 to 93
37 to 39
Tin (Sn), % 0
1.5 to 2.5
Zinc (Zn), % 0
26 to 30
Residuals, % 0
0 to 0.15