AWS BVAg-8b vs. SAE-AISI M30 Steel

AWS BVAg-8b belongs to the otherwise unclassified metals classification, while SAE-AISI M30 steel belongs to the iron alloys. There are 15 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is AWS BVAg-8b and the bottom bar is SAE-AISI M30 steel.

AWS BVAg-8b (P07728) Vacuum Service Filler Metal SAE-AISI M30 (T11330) Molybdenum High-Speed Steel

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		84
Elastic (Young's, Tensile) Modulus, GPa		200

Poisson's Ratio		0.36
Poisson's Ratio		0.29

Shear Modulus, GPa		31
Shear Modulus, GPa		78

Tensile Strength: Ultimate (UTS), MPa		170
Tensile Strength: Ultimate (UTS), MPa		800 to 2170

Thermal Properties

Latent Heat of Fusion, J/g		140
Latent Heat of Fusion, J/g		270

Melting Completion (Liquidus), °C		800
Melting Completion (Liquidus), °C		1550

Melting Onset (Solidus), °C		780
Melting Onset (Solidus), °C		1500

Specific Heat Capacity, J/kg-K		280
Specific Heat Capacity, J/kg-K		450

Thermal Expansion, µm/m-K		19
Thermal Expansion, µm/m-K		12

Otherwise Unclassified Properties

Density, g/cm³		10
Density, g/cm³		8.2

Common Calculations

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

Stiffness to Weight: Bending, points		15
Stiffness to Weight: Bending, points		24

Strength to Weight: Axial, points		4.7
Strength to Weight: Axial, points		27 to 74

Strength to Weight: Bending, points		6.8
Strength to Weight: Bending, points		24 to 46

Thermal Shock Resistance, points		7.6
Thermal Shock Resistance, points		25 to 67

Alloy Composition

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

Carbon (C), %		0 to 0.0050
Carbon (C), %		0.75 to 0.85

Chromium (Cr), %		0
Chromium (Cr), %		3.5 to 4.3

Cobalt (Co), %		0
Cobalt (Co), %		4.5 to 5.5

Copper (Cu), %		26.8 to 29.2
Copper (Cu), %		0 to 0.25

Iron (Fe), %		0
Iron (Fe), %		75.2 to 80.9

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

Manganese (Mn), %		0
Manganese (Mn), %		0.15 to 0.4

Molybdenum (Mo), %		0
Molybdenum (Mo), %		7.8 to 9.0

Nickel (Ni), %		0.3 to 0.7
Nickel (Ni), %		0 to 0.3

Phosphorus (P), %		0 to 0.0020
Phosphorus (P), %		0 to 0.030

Silicon (Si), %		0
Silicon (Si), %		0.2 to 0.45

Silver (Ag), %		70.5 to 72.5
Silver (Ag), %		0

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

Tungsten (W), %		0
Tungsten (W), %		1.3 to 2.3

Vanadium (V), %		0
Vanadium (V), %		1.0 to 1.4

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