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AWS BAg-28 vs. AWS BAu-5

Both AWS BAg-28 and AWS BAu-5 are otherwise unclassified metals. Both are furnished in the as-fabricated (no temper or treatment) condition. There are 16 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is AWS BAg-28 and the bottom bar is AWS BAu-5.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 88
140
Poisson's Ratio 0.33
0.37
Shear Modulus, GPa 33
50
Tensile Strength: Ultimate (UTS), MPa 150
210

Thermal Properties

Brazing Temperature, °C 680 to 840
1170 to 1230
Latent Heat of Fusion, J/g 140
180
Melting Completion (Liquidus), °C 710
1170
Melting Onset (Solidus), °C 650
1140
Specific Heat Capacity, J/kg-K 320
280
Thermal Expansion, µm/m-K 21
12

Otherwise Unclassified Properties

Density, g/cm3 8.9
13

Common Calculations

Stiffness to Weight: Axial, points 5.6
5.8
Stiffness to Weight: Bending, points 17
13
Strength to Weight: Axial, points 4.7
4.5
Strength to Weight: Bending, points 7.1
6.0
Thermal Shock Resistance, points 5.8
9.0

Alloy Composition

Copper (Cu), % 29 to 31
0
Gold (Au), % 0
29.5 to 30.5
Nickel (Ni), % 0
35.5 to 36.4
Palladium (Pd), % 0
33.5 to 34.5
Silver (Ag), % 39 to 41
0
Tin (Sn), % 1.5 to 2.5
0
Zinc (Zn), % 26 to 30
0
Residuals, % 0
0 to 0.15