AWS BVAu-7 vs. S33550 Stainless Steel

AWS BVAu-7 belongs to the otherwise unclassified metals classification, while S33550 stainless steel belongs to the iron alloys. There are 15 material properties with values for both materials. Properties with values for just one material (20, in this case) are not shown.

For each property being compared, the top bar is AWS BVAu-7 and the bottom bar is S33550 stainless steel.

AWS BVAu-7 (P00507) Vacuum Service Filler Metal UNS S33550 Stainless Steel

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		130
Elastic (Young's, Tensile) Modulus, GPa		200

Poisson's Ratio		0.38
Poisson's Ratio		0.27

Shear Modulus, GPa		45
Shear Modulus, GPa		79

Tensile Strength: Ultimate (UTS), MPa		200
Tensile Strength: Ultimate (UTS), MPa		680

Thermal Properties

Latent Heat of Fusion, J/g		140
Latent Heat of Fusion, J/g		300

Melting Completion (Liquidus), °C		1120
Melting Completion (Liquidus), °C		1400

Melting Onset (Solidus), °C		1100
Melting Onset (Solidus), °C		1360

Specific Heat Capacity, J/kg-K		240
Specific Heat Capacity, J/kg-K		480

Thermal Expansion, µm/m-K		13
Thermal Expansion, µm/m-K		16

Otherwise Unclassified Properties

Density, g/cm³		15
Density, g/cm³		7.8

Common Calculations

Stiffness to Weight: Axial, points		4.7
Stiffness to Weight: Axial, points		14

Stiffness to Weight: Bending, points		11
Stiffness to Weight: Bending, points		25

Strength to Weight: Axial, points		3.7
Strength to Weight: Axial, points		24

Strength to Weight: Bending, points		5.1
Strength to Weight: Bending, points		22

Thermal Shock Resistance, points		8.9
Thermal Shock Resistance, points		15

Alloy Composition

Cadmium (Cd), %		0 to 0.0010
Cadmium (Cd), %		0

Carbon (C), %		0 to 0.0050
Carbon (C), %		0.040 to 0.1

Cerium (Ce), %		0
Cerium (Ce), %		0.025 to 0.070

Chromium (Cr), %		0
Chromium (Cr), %		25 to 28

Cobalt (Co), %		0 to 0.060
Cobalt (Co), %		0

Gold (Au), %		49.5 to 50.5
Gold (Au), %		0

Iron (Fe), %		0
Iron (Fe), %		48.8 to 58.2

Lanthanum (La), %		0
Lanthanum (La), %		0.025 to 0.070

Lead (Pb), %		0 to 0.0020
Lead (Pb), %		0

Manganese (Mn), %		0
Manganese (Mn), %		0 to 1.5

Nickel (Ni), %		24.5 to 25.5
Nickel (Ni), %		16.5 to 20

Niobium (Nb), %		0
Niobium (Nb), %		0.050 to 0.15

Nitrogen (N), %		0
Nitrogen (N), %		0.18 to 0.25

Palladium (Pd), %		23.9 to 26
Palladium (Pd), %		0

Phosphorus (P), %		0 to 0.0020
Phosphorus (P), %		0 to 0.040

Silicon (Si), %		0
Silicon (Si), %		0 to 1.0

Sulfur (S), %		0
Sulfur (S), %		0 to 0.030

Zinc (Zn), %		0 to 0.0010
Zinc (Zn), %		0