AWS E316L vs. ASTM B631 Class A

AWS E316L belongs to the iron alloys classification, while ASTM B631 class A belongs to the otherwise unclassified metals. There are 16 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is AWS E316L and the bottom bar is ASTM B631 class A.

AWS E316L (W31613) Weld Metal ASTM B631 Class A Silver-Tungsten Electrical Contact Alloy

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		200
Elastic (Young's, Tensile) Modulus, GPa		220

Poisson's Ratio		0.28
Poisson's Ratio		0.3

Shear Modulus, GPa		78
Shear Modulus, GPa		85 to 86

Thermal Properties

Latent Heat of Fusion, J/g		290
Latent Heat of Fusion, J/g		160

Melting Completion (Liquidus), °C		1440
Melting Completion (Liquidus), °C		2680 to 2690

Specific Heat Capacity, J/kg-K		470
Specific Heat Capacity, J/kg-K		160

Thermal Conductivity, W/m-K		15
Thermal Conductivity, W/m-K		420

Thermal Expansion, µm/m-K		14
Thermal Expansion, µm/m-K		11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS		2.3
Electrical Conductivity: Equal Volume, % IACS		40 to 47

Electrical Conductivity: Equal Weight (Specific), % IACS		2.6
Electrical Conductivity: Equal Weight (Specific), % IACS		25 to 29

Otherwise Unclassified Properties

Density, g/cm³		7.9
Density, g/cm³		15

Embodied Carbon, kg CO₂/kg material		4.0
Embodied Carbon, kg CO₂/kg material		43

Embodied Energy, MJ/kg		55
Embodied Energy, MJ/kg		670

Common Calculations

Stiffness to Weight: Axial, points		14
Stiffness to Weight: Axial, points		8.5

Stiffness to Weight: Bending, points		25
Stiffness to Weight: Bending, points		14

Thermal Diffusivity, mm²/s		4.0
Thermal Diffusivity, mm²/s		180