Menu (ESC)

Home>Iron AlloyUp Three>Stainless Steel Welding FillerUp Two>AWS E308MoUp One

AWS E308Mo vs. AWS E330

Both AWS E308Mo and AWS E330 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 E308Mo and the bottom bar is AWS E330.

AWS E308Mo (W30820) Weld Metal AWS E330 (W88331) 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, %		29

Poisson's Ratio		0.28
Poisson's Ratio		0.29

Shear Modulus, GPa		78
Shear Modulus, GPa		76

Tensile Strength: Ultimate (UTS), MPa		620
Tensile Strength: Ultimate (UTS), MPa		580

Thermal Properties

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

Melting Completion (Liquidus), °C		1440
Melting Completion (Liquidus), °C		1400

Melting Onset (Solidus), °C		1400
Melting Onset (Solidus), °C		1350

Specific Heat Capacity, J/kg-K		470
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		2.0
Electrical Conductivity: Equal Volume, % IACS		1.7

Electrical Conductivity: Equal Weight (Specific), % IACS		2.3
Electrical Conductivity: Equal Weight (Specific), % IACS		1.9

Otherwise Unclassified Properties

Base Metal Price, % relative		19
Base Metal Price, % relative		31

Density, g/cm³		7.9
Density, g/cm³		8.1

Embodied Carbon, kg CO₂/kg material		3.8
Embodied Carbon, kg CO₂/kg material		5.4

Embodied Energy, MJ/kg		53
Embodied Energy, MJ/kg		75

Embodied Water, L/kg		160
Embodied Water, L/kg		180

Common Calculations

PREN (Pitting Resistance)		28
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		22
Strength to Weight: Axial, points		20

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

Thermal Diffusivity, mm²/s		4.2
Thermal Diffusivity, mm²/s		3.2

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

Alloy Composition

Carbon (C), %		0 to 0.080
Carbon (C), %		0.18 to 0.25

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

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

Iron (Fe), %		59.6 to 70.5
Iron (Fe), %		40.7 to 51.8

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

Molybdenum (Mo), %		2.0 to 3.0
Molybdenum (Mo), %		0 to 0.75

Nickel (Ni), %		9.0 to 12
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