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AWS BAg-5 vs. AWS BAg-3

Both AWS BAg-5 and AWS BAg-3 are otherwise unclassified metals. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 76% of their average alloy composition in common.

For each property being compared, the top bar is AWS BAg-5 and the bottom bar is AWS BAg-3.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 88
80
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 33
30
Tensile Strength: Ultimate (UTS), MPa 150
170

Thermal Properties

Brazing Temperature, °C 740 to 870
690 to 900
Latent Heat of Fusion, J/g 140
120
Melting Completion (Liquidus), °C 740
690
Melting Onset (Solidus), °C 660
630
Specific Heat Capacity, J/kg-K 320
290
Thermal Expansion, µm/m-K 21
22

Otherwise Unclassified Properties

Density, g/cm3 9.0
9.3
Embodied Carbon, kg CO2/kg material 44
49
Embodied Energy, MJ/kg 700
770

Common Calculations

Stiffness to Weight: Axial, points 5.4
4.8
Stiffness to Weight: Bending, points 16
15
Strength to Weight: Axial, points 4.6
5.1
Strength to Weight: Bending, points 6.9
7.3
Thermal Shock Resistance, points 5.9
6.9

Alloy Composition

Cadmium (Cd), % 0
15 to 17
Copper (Cu), % 29 to 31
14.5 to 16.5
Nickel (Ni), % 0
2.5 to 3.5
Silver (Ag), % 44 to 46
49 to 51
Zinc (Zn), % 23 to 27
13.5 to 17.5
Residuals, % 0
0 to 0.15