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AWS BAg-2a vs. AWS BAg-1

Both AWS BAg-2a and AWS BAg-1 are otherwise unclassified metals. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 81% of their average alloy composition in common.

For each property being compared, the top bar is AWS BAg-2a and the bottom bar is AWS BAg-1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 83
75
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 31
28
Tensile Strength: Ultimate (UTS), MPa 170
170

Thermal Properties

Brazing Temperature, °C 690 to 840
620 to 760
Latent Heat of Fusion, J/g 130
110
Melting Completion (Liquidus), °C 710
620
Melting Onset (Solidus), °C 610
610
Specific Heat Capacity, J/kg-K 310
280
Thermal Expansion, µm/m-K 23
23

Otherwise Unclassified Properties

Density, g/cm3 8.8
9.2
Embodied Carbon, kg CO2/kg material 30
44
Embodied Energy, MJ/kg 470
690

Common Calculations

Stiffness to Weight: Axial, points 5.2
4.6
Stiffness to Weight: Bending, points 17
15
Strength to Weight: Axial, points 5.4
5.1
Strength to Weight: Bending, points 7.8
7.4
Thermal Shock Resistance, points 6.5
7.0

Alloy Composition

Cadmium (Cd), % 19 to 21
23 to 25
Copper (Cu), % 26 to 28
14 to 16
Silver (Ag), % 29 to 31
44 to 46
Zinc (Zn), % 21 to 25
14 to 18
Residuals, % 0
0 to 0.15