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AWS BVAg-0 vs. 85-platinum 15-iridium

Both AWS BVAg-0 and 85-platinum 15-iridium are otherwise unclassified metals. There are 15 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is AWS BVAg-0 and the bottom bar is 85-platinum 15-iridium.

AWS BVAg-0 (P07017) Vacuum Service Filler Metal85-Platinum 15-Iridium Electrical Contact Alloy
Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
220
Poisson's Ratio 0.37
0.38
Shear Modulus, GPa 26
81
Tensile Strength: Ultimate (UTS), MPa 130
560 to 730

Thermal Properties

Latent Heat of Fusion, J/g 110
110
Melting Completion (Liquidus), °C 960
1820
Melting Onset (Solidus), °C 960
1790
Specific Heat Capacity, J/kg-K 240
130
Thermal Expansion, µm/m-K 20
8.4

Otherwise Unclassified Properties

Density, g/cm3 10
22

Common Calculations

Stiffness to Weight: Axial, points 3.8
5.7
Stiffness to Weight: Bending, points 13
9.3
Strength to Weight: Axial, points 3.4
7.1 to 9.3
Strength to Weight: Bending, points 5.4
6.9 to 8.3
Thermal Shock Resistance, points 6.6
21 to 28

Alloy Composition


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Cadmium (Cd), % 0 to 0.0010
0
Carbon (C), % 0 to 0.0050
0
Copper (Cu), % 0 to 0.050
0
Iridium (Ir), % 0
14.5 to 15.5
Lead (Pb), % 0 to 0.0020
0
Phosphorus (P), % 0 to 0.0020
0
Platinum (Pt), % 0
84.3 to 85.5
Silver (Ag), % 99.95 to 100
0
Zinc (Zn), % 0 to 0.0010
0
Residuals, % 0
0 to 0.2