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AWS BAg-37 vs. AWS BAg-21

Both AWS BAg-37 and AWS BAg-21 are otherwise unclassified metals. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 56% of their average alloy composition in common. There are 17 material properties with values for both materials. Properties with values for just one material (1, 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-21.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 94
85
Poisson's Ratio 0.32
0.36
Shear Modulus, GPa 36
31
Tensile Strength: Ultimate (UTS), MPa 180
150

Thermal Properties

Brazing Temperature, °C 780 to 890
700 to 900
Latent Heat of Fusion, J/g 150
140
Melting Completion (Liquidus), °C 780
800
Melting Onset (Solidus), °C 690
690
Specific Heat Capacity, J/kg-K 350
280
Thermal Expansion, µm/m-K 21
19

Otherwise Unclassified Properties

Density, g/cm3 8.5
9.8
Embodied Energy, MJ/kg 410
970

Common Calculations

Stiffness to Weight: Axial, points 6.1
4.8
Stiffness to Weight: Bending, points 18
15
Strength to Weight: Axial, points 5.9
4.2
Strength to Weight: Bending, points 8.3
6.4
Thermal Shock Resistance, points 6.6
6.6

Alloy Composition

Copper (Cu), % 39 to 41
27.5 to 29.5
Nickel (Ni), % 0
2.0 to 3.0
Silver (Ag), % 24 to 26
62 to 64
Tin (Sn), % 1.5 to 2.5
5.0 to 7.0
Zinc (Zn), % 31 to 35
0
Residuals, % 0
0 to 0.15