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AWS BAg-37 vs. AWS BAg-13

Both AWS BAg-37 and AWS BAg-13 are otherwise unclassified metals. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 70% of their average alloy composition in common.

For each property being compared, the top bar is AWS BAg-37 and the bottom bar is AWS BAg-13.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 94
91
Poisson's Ratio 0.32
0.35
Shear Modulus, GPa 36
34
Tensile Strength: Ultimate (UTS), MPa 180
180

Thermal Properties

Brazing Temperature, °C 780 to 890
860 to 980
Latent Heat of Fusion, J/g 150
150
Melting Completion (Liquidus), °C 780
860
Melting Onset (Solidus), °C 690
720
Specific Heat Capacity, J/kg-K 350
310
Thermal Expansion, µm/m-K 21
19

Otherwise Unclassified Properties

Density, g/cm3 8.5
9.7
Embodied Carbon, kg CO2/kg material 26
52
Embodied Energy, MJ/kg 410
820

Common Calculations

Stiffness to Weight: Axial, points 6.1
5.2
Stiffness to Weight: Bending, points 18
16
Strength to Weight: Axial, points 5.9
5.2
Strength to Weight: Bending, points 8.3
7.3
Thermal Shock Resistance, points 6.6
7.5

Alloy Composition

Copper (Cu), % 39 to 41
37.4 to 42.5
Nickel (Ni), % 0
0.5 to 1.5
Silver (Ag), % 24 to 26
53 to 55
Tin (Sn), % 1.5 to 2.5
0
Zinc (Zn), % 31 to 35
4.0 to 6.0
Residuals, % 0
0 to 0.15