AWS BVAg-6b vs. R30003 Cobalt

AWS BVAg-6b belongs to the otherwise unclassified metals classification, while R30003 cobalt belongs to the cobalt alloys. There are 17 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 BVAg-6b and the bottom bar is R30003 cobalt.

AWS BVAg-6b (P07507) Vacuum Service Filler Metal UNS R30003 (ASTM F1058 Grade 1) Alloy

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		93
Elastic (Young's, Tensile) Modulus, GPa		210

Poisson's Ratio		0.35
Poisson's Ratio		0.29

Shear Modulus, GPa		35
Shear Modulus, GPa		83

Tensile Strength: Ultimate (UTS), MPa		180
Tensile Strength: Ultimate (UTS), MPa		970 to 1720

Thermal Properties

Latent Heat of Fusion, J/g		160
Latent Heat of Fusion, J/g		310

Melting Completion (Liquidus), °C		870
Melting Completion (Liquidus), °C		1400

Melting Onset (Solidus), °C		780
Melting Onset (Solidus), °C		1440

Specific Heat Capacity, J/kg-K		310
Specific Heat Capacity, J/kg-K		450

Thermal Expansion, µm/m-K		19
Thermal Expansion, µm/m-K		13

Otherwise Unclassified Properties

Density, g/cm³		9.7
Density, g/cm³		8.4

Embodied Carbon, kg CO₂/kg material		49
Embodied Carbon, kg CO₂/kg material		8.0

Embodied Energy, MJ/kg		770
Embodied Energy, MJ/kg		110

Common Calculations

Stiffness to Weight: Axial, points		5.3
Stiffness to Weight: Axial, points		14

Stiffness to Weight: Bending, points		16
Stiffness to Weight: Bending, points		24

Strength to Weight: Axial, points		5.1
Strength to Weight: Axial, points		32 to 57

Strength to Weight: Bending, points		7.3
Strength to Weight: Bending, points		26 to 38

Thermal Shock Resistance, points		7.4
Thermal Shock Resistance, points		26 to 45

Alloy Composition

Boron (B), %		0
Boron (B), %		0 to 0.1

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

Carbon (C), %		0 to 0.0050
Carbon (C), %		0 to 0.15

Chromium (Cr), %		0
Chromium (Cr), %		19 to 21

Cobalt (Co), %		0
Cobalt (Co), %		39 to 41

Copper (Cu), %		49 to 51
Copper (Cu), %		0

Iron (Fe), %		0
Iron (Fe), %		10 to 20.5

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

Manganese (Mn), %		0
Manganese (Mn), %		1.5 to 2.5

Molybdenum (Mo), %		0
Molybdenum (Mo), %		6.0 to 8.0

Nickel (Ni), %		0
Nickel (Ni), %		14 to 16

Phosphorus (P), %		0 to 0.0020
Phosphorus (P), %		0 to 0.015

Silicon (Si), %		0
Silicon (Si), %		0 to 1.2

Silver (Ag), %		49 to 51
Silver (Ag), %		0

Sulfur (S), %		0
Sulfur (S), %		0 to 0.015

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