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AWS E308L vs. AWS E330H

Both AWS E308L and AWS E330H are iron alloys. Both are furnished in the as-welded condition. They have 74% of their average alloy composition in common.

For each property being compared, the top bar is AWS E308L and the bottom bar is AWS E330H.

AWS E308L (W30813) Weld Metal AWS E330H (W88335) Weld Metal

Metric UnitsUS Customary Units

Mechanical Properties

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

Elongation at Break, %		40
Elongation at Break, %		11

Poisson's Ratio		0.28
Poisson's Ratio		0.29

Shear Modulus, GPa		78
Shear Modulus, GPa		76

Tensile Strength: Ultimate (UTS), MPa		580
Tensile Strength: Ultimate (UTS), MPa		690

Thermal Properties

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

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

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

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

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

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

Electrical Properties

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

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

Otherwise Unclassified Properties

Base Metal Price, % relative		16
Base Metal Price, % relative		30

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

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

Embodied Energy, MJ/kg		46
Embodied Energy, MJ/kg		76

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

Common Calculations

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

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

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

Strength to Weight: Axial, points		21
Strength to Weight: Axial, points		24

Strength to Weight: Bending, points		20
Strength to Weight: Bending, points		22

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

Thermal Shock Resistance, points		15
Thermal Shock Resistance, points		19

Alloy Composition

Carbon (C), %		0 to 0.040
Carbon (C), %		0.35 to 0.45

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

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

Iron (Fe), %		62.9 to 72.5
Iron (Fe), %		40.5 to 51.7

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

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

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

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