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AWS BAg-7 vs. AWS BAg-24

Both AWS BAg-7 and AWS BAg-24 are otherwise unclassified metals. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 87% 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-24.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 83
87
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 31
33
Tensile Strength: Ultimate (UTS), MPa 150
150

Thermal Properties

Brazing Temperature, °C 650 to 900
710 to 870
Latent Heat of Fusion, J/g 130
130
Melting Completion (Liquidus), °C 650
730
Melting Onset (Solidus), °C 620
660
Specific Heat Capacity, J/kg-K 290
310
Thermal Expansion, µm/m-K 20
21

Otherwise Unclassified Properties

Density, g/cm3 9.3
9.0
Embodied Carbon, kg CO2/kg material 55
49
Embodied Energy, MJ/kg 860
770

Common Calculations

Stiffness to Weight: Axial, points 4.9
5.3
Stiffness to Weight: Bending, points 16
16
Strength to Weight: Axial, points 4.5
4.6
Strength to Weight: Bending, points 6.7
6.9
Thermal Shock Resistance, points 6.4
5.9

Alloy Composition

Copper (Cu), % 21 to 23
19 to 21
Nickel (Ni), % 0
1.5 to 2.5
Silver (Ag), % 55 to 57
49 to 51
Tin (Sn), % 4.5 to 5.5
0
Zinc (Zn), % 15 to 19
26 to 30
Residuals, % 0 to 0.15
0 to 0.15