MakeItFrom.com
Menu (ESC)

AWS BVAu-4 vs. AWS BVAg-31

Both AWS BVAu-4 and AWS BVAg-31 are otherwise unclassified metals. Both are furnished in the as-fabricated (no temper or treatment) condition.

For each property being compared, the top bar is AWS BVAu-4 and the bottom bar is AWS BVAg-31.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
90
Poisson's Ratio 0.4
0.36
Shear Modulus, GPa 41
33
Tensile Strength: Ultimate (UTS), MPa 190
180

Thermal Properties

Brazing Temperature, °C 950 to 1000
850 to 890
Latent Heat of Fusion, J/g 100
150
Melting Completion (Liquidus), °C 950
850
Melting Onset (Solidus), °C 950
820
Specific Heat Capacity, J/kg-K 190
280
Thermal Expansion, µm/m-K 14
18

Otherwise Unclassified Properties

Density, g/cm3 17
10

Common Calculations

Stiffness to Weight: Axial, points 3.6
4.9
Stiffness to Weight: Bending, points 9.3
15
Strength to Weight: Axial, points 3.0
4.9
Strength to Weight: Bending, points 4.2
7.0
Thermal Shock Resistance, points 8.7
7.8

Alloy Composition

Cadmium (Cd), % 0 to 0.0010
0 to 0.0010
Carbon (C), % 0 to 0.0050
0 to 0.0050
Copper (Cu), % 0
31 to 33
Gold (Au), % 81.5 to 82.5
0
Lead (Pb), % 0 to 0.0020
0 to 0.0020
Nickel (Ni), % 17.5 to 18.5
0
Palladium (Pd), % 0
8.0 to 12
Phosphorus (P), % 0 to 0.0020
0 to 0.0020
Silver (Ag), % 0
57 to 59
Zinc (Zn), % 0 to 0.0010
0 to 0.0010