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AWS BAg-1 vs. AWS BAg-4

Both AWS BAg-1 and AWS BAg-4 are otherwise unclassified metals. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 71% of their average alloy composition in common.

For each property being compared, the top bar is AWS BAg-1 and the bottom bar is AWS BAg-4.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 75
91
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 28
34
Tensile Strength: Ultimate (UTS), MPa 170
150

Thermal Properties

Brazing Temperature, °C 620 to 760
740 to 900
Latent Heat of Fusion, J/g 110
140
Melting Completion (Liquidus), °C 620
780
Melting Onset (Solidus), °C 610
670
Specific Heat Capacity, J/kg-K 280
330
Thermal Expansion, µm/m-K 23
21

Otherwise Unclassified Properties

Density, g/cm3 9.2
8.9
Embodied Carbon, kg CO2/kg material 44
40
Embodied Energy, MJ/kg 690
630

Common Calculations

Stiffness to Weight: Axial, points 4.6
5.7
Stiffness to Weight: Bending, points 15
17
Strength to Weight: Axial, points 5.1
4.7
Strength to Weight: Bending, points 7.4
7.1
Thermal Shock Resistance, points 7.0
5.7

Alloy Composition

Cadmium (Cd), % 23 to 25
0
Copper (Cu), % 14 to 16
29 to 31
Nickel (Ni), % 0
1.5 to 2.5
Silver (Ag), % 44 to 46
39 to 41
Zinc (Zn), % 14 to 18
26 to 30
Residuals, % 0
0 to 0.15