AWS BVAg-31 vs. AWS BVAu-8
Both AWS BVAg-31 and AWS BVAu-8 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 BVAg-31 and the bottom bar is AWS BVAu-8.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 90 | |
100 |
Poisson's Ratio | 0.36 | |
0.42 |
Shear Modulus, GPa | 33 | |
36 |
Tensile Strength: Ultimate (UTS), MPa | 180 | |
140 |
Thermal Properties
Brazing Temperature, °C | 850 to 890 | |
1240 to 1270 |
Latent Heat of Fusion, J/g | 150 | |
71 |
Melting Completion (Liquidus), °C | 850 | |
1240 |
Melting Onset (Solidus), °C | 820 | |
1200 |
Specific Heat Capacity, J/kg-K | 280 | |
140 |
Thermal Expansion, µm/m-K | 18 | |
14 |
Otherwise Unclassified Properties
Density, g/cm3 | 10 | |
19 |
Common Calculations
Stiffness to Weight: Axial, points | 4.9 | |
3.0 |
Stiffness to Weight: Bending, points | 15 | |
8.3 |
Strength to Weight: Axial, points | 4.9 | |
2.1 |
Strength to Weight: Bending, points | 7.0 | |
3.2 |
Thermal Shock Resistance, points | 7.8 | |
7.1 |
Alloy Composition
Cadmium (Cd), % | 0 to 0.0010 | |
0 to 0.0010 |
Carbon (C), % | 0 to 0.0050 | |
0 to 0.0050 |
Copper (Cu), % | 31 to 33 | |
0 |
Gold (Au), % | 0 | |
91 to 93 |
Lead (Pb), % | 0 to 0.0020 | |
0 to 0.0020 |
Palladium (Pd), % | 8.0 to 12 | |
7.0 to 9.0 |
Phosphorus (P), % | 0 to 0.0020 | |
0 to 0.0020 |
Silver (Ag), % | 57 to 59 | |
0 |
Zinc (Zn), % | 0 to 0.0010 | |
0 to 0.0010 |