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AWS BVAg-31 vs. ASTM B780 Alloy

Both AWS BVAg-31 and ASTM B780 alloy are otherwise unclassified metals. They have 83% of their average alloy composition in common. There are 13 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is AWS BVAg-31 and the bottom bar is ASTM B780 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 90
83
Poisson's Ratio 0.36
0.36
Shear Modulus, GPa 33
30
Tensile Strength: Ultimate (UTS), MPa 180
330 to 590

Thermal Properties

Latent Heat of Fusion, J/g 150
140
Specific Heat Capacity, J/kg-K 280
270
Thermal Expansion, µm/m-K 18
18

Otherwise Unclassified Properties

Density, g/cm3 10
10

Common Calculations

Stiffness to Weight: Axial, points 4.9
4.5
Stiffness to Weight: Bending, points 15
14
Strength to Weight: Axial, points 4.9
9.1 to 16
Strength to Weight: Bending, points 7.0
11 to 15
Thermal Shock Resistance, points 7.8
16 to 29

Alloy Composition

Cadmium (Cd), % 0 to 0.0010
0 to 0.050
Carbon (C), % 0 to 0.0050
0
Copper (Cu), % 31 to 33
23.5 to 25.7
Iron (Fe), % 0
0 to 0.050
Lead (Pb), % 0 to 0.0020
0 to 0.030
Nickel (Ni), % 0
0.35 to 0.65
Palladium (Pd), % 8.0 to 12
0
Phosphorus (P), % 0 to 0.0020
0
Silver (Ag), % 57 to 59
74 to 76
Zinc (Zn), % 0 to 0.0010
0 to 0.060