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AWS BAg-37 vs. AWS BAg-19

Both AWS BAg-37 and AWS BAg-19 are otherwise unclassified metals. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a modest 32% 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 BAg-37 and the bottom bar is AWS BAg-19.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 94
74
Poisson's Ratio 0.32
0.37
Shear Modulus, GPa 36
27
Tensile Strength: Ultimate (UTS), MPa 180
140

Thermal Properties

Brazing Temperature, °C 780 to 890
770 to 980
Latent Heat of Fusion, J/g 150
120
Melting Completion (Liquidus), °C 780
890
Melting Onset (Solidus), °C 690
760
Specific Heat Capacity, J/kg-K 350
250
Thermal Expansion, µm/m-K 21
20

Otherwise Unclassified Properties

Density, g/cm3 8.5
10

Common Calculations

Stiffness to Weight: Axial, points 6.1
4.0
Stiffness to Weight: Bending, points 18
14
Strength to Weight: Axial, points 5.9
3.8
Strength to Weight: Bending, points 8.3
5.8
Thermal Shock Resistance, points 6.6
6.9

Alloy Composition

Copper (Cu), % 39 to 41
6.6 to 7.9
Lithium (Li), % 0
0.15 to 0.3
Silver (Ag), % 24 to 26
92 to 93
Tin (Sn), % 1.5 to 2.5
0
Zinc (Zn), % 31 to 35
0
Residuals, % 0
0 to 0.15