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AWS BVAg-18 vs. ASTM B477 Au-Ni-Ag

Both AWS BVAg-18 and ASTM B477 Au-Ni-Ag are otherwise unclassified metals. They have a modest 22% of their average alloy composition in common, which, by itself, doesn't mean much. There are 15 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is AWS BVAg-18 and the bottom bar is ASTM B477 Au-Ni-Ag.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 82
95
Poisson's Ratio 0.36
0.41
Shear Modulus, GPa 30
34
Tensile Strength: Ultimate (UTS), MPa 180
310 to 550

Thermal Properties

Latent Heat of Fusion, J/g 140
80
Melting Completion (Liquidus), °C 720
1010
Melting Onset (Solidus), °C 600
930
Specific Heat Capacity, J/kg-K 280
160
Thermal Expansion, µm/m-K 19
15

Otherwise Unclassified Properties

Density, g/cm3 9.7
17

Common Calculations

Stiffness to Weight: Axial, points 4.7
3.1
Stiffness to Weight: Bending, points 15
8.9
Strength to Weight: Axial, points 5.1
5.0 to 9.0
Strength to Weight: Bending, points 7.3
6.0 to 8.8
Thermal Shock Resistance, points 8.1
16 to 28

Alloy Composition

Cadmium (Cd), % 0 to 0.0010
0
Carbon (C), % 0 to 0.0050
0
Copper (Cu), % 28.5 to 31.5
0
Gold (Au), % 0
74.2 to 75.8
Lead (Pb), % 0 to 0.0020
0
Nickel (Ni), % 0
2.6 to 3.4
Phosphorus (P), % 0 to 0.0020
0
Silver (Ag), % 59 to 61
21.4 to 22.6
Tin (Sn), % 9.5 to 10.5
0
Zinc (Zn), % 0 to 0.0010
0
Residuals, % 0
0 to 0.3