Class 4 Tungsten vs. AWS BAg-34

Both class 4 tungsten and AWS BAg-34 are otherwise unclassified metals. Both are furnished in the as-fabricated (no temper or treatment) condition. There are 15 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is class 4 tungsten and the bottom bar is AWS BAg-34.

Class 4 Tungsten AWS BAg-34 (P07380) Filler Metal

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		270
Elastic (Young's, Tensile) Modulus, GPa		89

Poisson's Ratio		0.28
Poisson's Ratio		0.33

Shear Modulus, GPa		110
Shear Modulus, GPa		34

Tensile Strength: Ultimate (UTS), MPa		790
Tensile Strength: Ultimate (UTS), MPa		170

Thermal Properties

Latent Heat of Fusion, J/g		170
Latent Heat of Fusion, J/g		140

Specific Heat Capacity, J/kg-K		130
Specific Heat Capacity, J/kg-K		330

Thermal Expansion, µm/m-K		4.5
Thermal Expansion, µm/m-K		21

Otherwise Unclassified Properties

Density, g/cm³		16
Density, g/cm³		8.8

Embodied Carbon, kg CO₂/kg material		24
Embodied Carbon, kg CO₂/kg material		38

Embodied Energy, MJ/kg		360
Embodied Energy, MJ/kg		600

Common Calculations

Stiffness to Weight: Axial, points		9.6
Stiffness to Weight: Axial, points		5.6

Stiffness to Weight: Bending, points		14
Stiffness to Weight: Bending, points		17

Strength to Weight: Axial, points		14
Strength to Weight: Axial, points		5.4

Strength to Weight: Bending, points		12
Strength to Weight: Bending, points		7.7

Thermal Shock Resistance, points		46
Thermal Shock Resistance, points		6.5

Alloy Composition

Copper (Cu), %		0
Copper (Cu), %		31 to 33

Silver (Ag), %		0
Silver (Ag), %		37 to 39

Tin (Sn), %		0
Tin (Sn), %		1.5 to 2.5

Tungsten (W), %		97
Tungsten (W), %		0

Zinc (Zn), %		0
Zinc (Zn), %		26 to 30

Residuals, %		0
Residuals, %		0 to 0.15