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AWS BAg-7 vs. AWS BAg-1

Both AWS BAg-7 and AWS BAg-1 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-7 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 0.34
0.33
Shear Modulus, GPa 31
28
Tensile Strength: Ultimate (UTS), MPa 150
170

Thermal Properties

Brazing Temperature, °C 650 to 900
620 to 760
Latent Heat of Fusion, J/g 130
110
Melting Completion (Liquidus), °C 650
620
Melting Onset (Solidus), °C 620
610
Specific Heat Capacity, J/kg-K 290
280
Thermal Expansion, µm/m-K 20
23

Otherwise Unclassified Properties

Density, g/cm3 9.3
9.2
Embodied Carbon, kg CO2/kg material 55
44
Embodied Energy, MJ/kg 860
690

Common Calculations

Stiffness to Weight: Axial, points 4.9
4.6
Stiffness to Weight: Bending, points 16
15
Strength to Weight: Axial, points 4.5
5.1
Strength to Weight: Bending, points 6.7
7.4
Thermal Shock Resistance, points 6.4
7.0

Alloy Composition

Cadmium (Cd), % 0
23 to 25
Copper (Cu), % 21 to 23
14 to 16
Silver (Ag), % 55 to 57
44 to 46
Tin (Sn), % 4.5 to 5.5
0
Zinc (Zn), % 15 to 19
14 to 18
Residuals, % 0 to 0.15
0 to 0.15