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AWS BVAg-30 vs. AWS BVAg-18

Both AWS BVAg-30 and AWS BVAg-18 are otherwise unclassified metals. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 87% of their average alloy composition in common. There are 16 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is AWS BVAg-30 and the bottom bar is AWS BVAg-18.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 86
82
Poisson's Ratio 0.36
0.36
Shear Modulus, GPa 31
30
Tensile Strength: Ultimate (UTS), MPa 170
180

Thermal Properties

Brazing Temperature, °C 810 to 930
720 to 840
Latent Heat of Fusion, J/g 140
140
Melting Completion (Liquidus), °C 810
720
Melting Onset (Solidus), °C 810
600
Specific Heat Capacity, J/kg-K 280
280
Thermal Expansion, µm/m-K 19
19

Otherwise Unclassified Properties

Density, g/cm3 10
9.7

Common Calculations

Stiffness to Weight: Axial, points 4.7
4.7
Stiffness to Weight: Bending, points 14
15
Strength to Weight: Axial, points 4.7
5.1
Strength to Weight: Bending, points 6.7
7.3
Thermal Shock Resistance, points 7.6
8.1

Alloy Composition

Cadmium (Cd), % 0 to 0.0010
0 to 0.0010
Carbon (C), % 0 to 0.0050
0 to 0.0050
Copper (Cu), % 25.5 to 28.5
28.5 to 31.5
Lead (Pb), % 0 to 0.0020
0 to 0.0020
Palladium (Pd), % 4.5 to 5.5
0
Phosphorus (P), % 0 to 0.0020
0 to 0.0020
Silver (Ag), % 67 to 69
59 to 61
Tin (Sn), % 0
9.5 to 10.5
Zinc (Zn), % 0 to 0.0010
0 to 0.0010