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AWS BVAu-7 vs. AWS E309Nb

AWS BVAu-7 belongs to the otherwise unclassified metals classification, while AWS E309Nb belongs to the iron alloys. 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 BVAu-7 and the bottom bar is AWS E309Nb.

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
78
Tensile Strength: Ultimate (UTS), MPa 200
620

Thermal Properties

Latent Heat of Fusion, J/g 140
300
Melting Completion (Liquidus), °C 1120
1420
Melting Onset (Solidus), °C 1100
1380
Specific Heat Capacity, J/kg-K 240
480
Thermal Expansion, µm/m-K 13
14

Otherwise Unclassified Properties

Density, g/cm3 15
7.8

Common Calculations

Stiffness to Weight: Axial, points 4.7
14
Stiffness to Weight: Bending, points 11
25
Strength to Weight: Axial, points 3.7
22
Strength to Weight: Bending, points 5.1
21
Thermal Shock Resistance, points 8.9
16

Alloy Composition

Cadmium (Cd), % 0 to 0.0010
0
Carbon (C), % 0 to 0.0050
0 to 0.12
Chromium (Cr), % 0
22 to 25
Cobalt (Co), % 0 to 0.060
0
Copper (Cu), % 0
0 to 0.75
Gold (Au), % 49.5 to 50.5
0
Iron (Fe), % 0
54.8 to 64.8
Lead (Pb), % 0 to 0.0020
0
Manganese (Mn), % 0
0.5 to 2.5
Molybdenum (Mo), % 0
0 to 0.75
Nickel (Ni), % 24.5 to 25.5
12 to 14
Niobium (Nb), % 0
0.7 to 1.0
Palladium (Pd), % 23.9 to 26
0
Phosphorus (P), % 0 to 0.0020
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 0 to 0.0010
0