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AWS BVAu-7 vs. S33425 Stainless Steel

AWS BVAu-7 belongs to the otherwise unclassified metals classification, while S33425 stainless steel belongs to the iron alloys. They have a modest 22% 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 (19, in this case) are not shown.

For each property being compared, the top bar is AWS BVAu-7 and the bottom bar is S33425 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 130
200
Poisson's Ratio 0.38
0.28
Shear Modulus, GPa 45
79
Tensile Strength: Ultimate (UTS), MPa 200
580

Thermal Properties

Latent Heat of Fusion, J/g 140
300
Melting Completion (Liquidus), °C 1120
1430
Melting Onset (Solidus), °C 1100
1380
Specific Heat Capacity, J/kg-K 240
470
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Density, g/cm3 15
7.9

Common Calculations

Stiffness to Weight: Axial, points 4.7
14
Stiffness to Weight: Bending, points 11
25
Strength to Weight: Axial, points 3.7
20
Strength to Weight: Bending, points 5.1
19
Thermal Shock Resistance, points 8.9
13

Alloy Composition

Aluminum (Al), % 0
0.15 to 0.6
Cadmium (Cd), % 0 to 0.0010
0
Carbon (C), % 0 to 0.0050
0 to 0.080
Chromium (Cr), % 0
21 to 23
Cobalt (Co), % 0 to 0.060
0
Gold (Au), % 49.5 to 50.5
0
Iron (Fe), % 0
47.2 to 56.7
Lead (Pb), % 0 to 0.0020
0
Manganese (Mn), % 0
0 to 1.5
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 24.5 to 25.5
20 to 23
Palladium (Pd), % 23.9 to 26
0
Phosphorus (P), % 0 to 0.0020
0 to 0.045
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 0
0.15 to 0.6
Zinc (Zn), % 0 to 0.0010
0