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AWS E330 vs. AWS E308L

Both AWS E330 and AWS E308L are iron alloys. Both are furnished in the as-welded condition. They have 75% of their average alloy composition in common.

For each property being compared, the top bar is AWS E330 and the bottom bar is AWS E308L.

AWS E330 (W88331) Weld Metal AWS E308L (W30813) Weld Metal

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		190
Elastic (Young's, Tensile) Modulus, GPa		200

Elongation at Break, %		29
Elongation at Break, %		40

Poisson's Ratio		0.29
Poisson's Ratio		0.28

Shear Modulus, GPa		76
Shear Modulus, GPa		78

Tensile Strength: Ultimate (UTS), MPa		580
Tensile Strength: Ultimate (UTS), MPa		580

Thermal Properties

Latent Heat of Fusion, J/g		300
Latent Heat of Fusion, J/g		290

Melting Completion (Liquidus), °C		1400
Melting Completion (Liquidus), °C		1420

Melting Onset (Solidus), °C		1350
Melting Onset (Solidus), °C		1380

Specific Heat Capacity, J/kg-K		470
Specific Heat Capacity, J/kg-K		480

Thermal Conductivity, W/m-K		12
Thermal Conductivity, W/m-K		16

Thermal Expansion, µm/m-K		13
Thermal Expansion, µm/m-K		14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS		1.7
Electrical Conductivity: Equal Volume, % IACS		2.2

Electrical Conductivity: Equal Weight (Specific), % IACS		1.9
Electrical Conductivity: Equal Weight (Specific), % IACS		2.5

Otherwise Unclassified Properties

Base Metal Price, % relative		31
Base Metal Price, % relative		16

Density, g/cm³		8.1
Density, g/cm³		7.8

Embodied Carbon, kg CO₂/kg material		5.4
Embodied Carbon, kg CO₂/kg material		3.2

Embodied Energy, MJ/kg		75
Embodied Energy, MJ/kg		46

Embodied Water, L/kg		180
Embodied Water, L/kg		150

Common Calculations

PREN (Pitting Resistance)		17
PREN (Pitting Resistance)		21

Stiffness to Weight: Axial, points		13
Stiffness to Weight: Axial, points		14

Stiffness to Weight: Bending, points		24
Stiffness to Weight: Bending, points		25

Strength to Weight: Axial, points		20
Strength to Weight: Axial, points		21

Strength to Weight: Bending, points		19
Strength to Weight: Bending, points		20

Thermal Diffusivity, mm²/s		3.2
Thermal Diffusivity, mm²/s		4.1

Thermal Shock Resistance, points		16
Thermal Shock Resistance, points		15

Alloy Composition

Carbon (C), %		0.18 to 0.25
Carbon (C), %		0 to 0.040

Chromium (Cr), %		14 to 17
Chromium (Cr), %		18 to 21

Copper (Cu), %		0 to 0.75
Copper (Cu), %		0 to 0.75

Iron (Fe), %		40.7 to 51.8
Iron (Fe), %		62.9 to 72.5

Manganese (Mn), %		1.0 to 2.5
Manganese (Mn), %		0.5 to 2.5

Molybdenum (Mo), %		0 to 0.75
Molybdenum (Mo), %		0 to 0.75

Nickel (Ni), %		33 to 37
Nickel (Ni), %		9.0 to 11

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

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

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