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AWS BVAg-31 vs. ASTM B522 Class II

Both AWS BVAg-31 and ASTM B522 class II are otherwise unclassified metals. They have a modest 25% 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 (9, in this case) are not shown.

For each property being compared, the top bar is AWS BVAg-31 and the bottom bar is ASTM B522 class II.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 90
96
Poisson's Ratio 0.36
0.41
Shear Modulus, GPa 33
34
Tensile Strength: Ultimate (UTS), MPa 180
280 to 490

Thermal Properties

Latent Heat of Fusion, J/g 150
77
Melting Completion (Liquidus), °C 850
1030
Melting Onset (Solidus), °C 820
1030
Specific Heat Capacity, J/kg-K 280
160
Thermal Expansion, µm/m-K 18
15

Otherwise Unclassified Properties

Density, g/cm3 10
17

Common Calculations

Stiffness to Weight: Axial, points 4.9
3.1
Stiffness to Weight: Bending, points 15
8.9
Strength to Weight: Axial, points 4.9
4.4 to 7.8
Strength to Weight: Bending, points 7.0
5.5 to 8.0
Thermal Shock Resistance, points 7.8
13 to 24

Alloy Composition

Cadmium (Cd), % 0 to 0.0010
0
Carbon (C), % 0 to 0.0050
0
Copper (Cu), % 31 to 33
0
Gold (Au), % 0
68.5 to 69.5
Lead (Pb), % 0 to 0.0020
0
Palladium (Pd), % 8.0 to 12
0
Phosphorus (P), % 0 to 0.0020
0
Platinum (Pt), % 0
5.5 to 6.5
Silver (Ag), % 57 to 59
24.5 to 25.5
Sulfur (S), % 0
0 to 0.010
Zinc (Zn), % 0 to 0.0010
0
Residuals, % 0
0 to 0.26