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AWS BAg-22 vs. ASTM B541 Gold

Both AWS BAg-22 and ASTM B541 gold are otherwise unclassified metals. They have a modest 20% 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 (11, in this case) are not shown.

For each property being compared, the top bar is AWS BAg-22 and the bottom bar is ASTM B541 gold.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 96
110
Poisson's Ratio 0.33
0.4
Shear Modulus, GPa 36
38
Tensile Strength: Ultimate (UTS), MPa 140
670 to 1180

Thermal Properties

Latent Heat of Fusion, J/g 150
90
Melting Completion (Liquidus), °C 700
1110
Melting Onset (Solidus), °C 680
930
Specific Heat Capacity, J/kg-K 320
170
Thermal Expansion, µm/m-K 21
13

Otherwise Unclassified Properties

Density, g/cm3 9.0
17

Common Calculations

Stiffness to Weight: Axial, points 5.9
3.4
Stiffness to Weight: Bending, points 17
9.0
Strength to Weight: Axial, points 4.3
11 to 19
Strength to Weight: Bending, points 6.6
9.8 to 14
Thermal Shock Resistance, points 5.1
36 to 63

Alloy Composition


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Copper (Cu), % 15 to 17
13.5 to 15.5
Gold (Au), % 0
70.5 to 72.5
Manganese (Mn), % 7.0 to 8.0
0
Nickel (Ni), % 4.0 to 5.0
0
Platinum (Pt), % 0
8.0 to 9.0
Silver (Ag), % 48 to 50
4.0 to 5.0
Zinc (Zn), % 21 to 25
0.7 to 1.3
Residuals, % 0 to 0.15
0 to 0.4