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AWS E309H vs. AWS E430

Both AWS E309H and AWS E430 are iron alloys. They have 79% of their average alloy composition in common.

For each property being compared, the top bar is AWS E309H and the bottom bar is AWS E430.

AWS E309H Weld Metal AWS E430 (W43010) Weld Metal

Metric UnitsUS Customary Units

Mechanical Properties

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

Elongation at Break, %		34
Elongation at Break, %		23

Poisson's Ratio		0.27
Poisson's Ratio		0.28

Shear Modulus, GPa		78
Shear Modulus, GPa		77

Tensile Strength: Ultimate (UTS), MPa		620
Tensile Strength: Ultimate (UTS), MPa		500

Thermal Properties

Latent Heat of Fusion, J/g		300
Latent Heat of Fusion, J/g		280

Melting Completion (Liquidus), °C		1410
Melting Completion (Liquidus), °C		1440

Melting Onset (Solidus), °C		1370
Melting Onset (Solidus), °C		1400

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

Thermal Conductivity, W/m-K		15
Thermal Conductivity, W/m-K		25

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

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS		2.1
Electrical Conductivity: Equal Volume, % IACS		2.8

Electrical Conductivity: Equal Weight (Specific), % IACS		2.5
Electrical Conductivity: Equal Weight (Specific), % IACS		3.2

Otherwise Unclassified Properties

Base Metal Price, % relative		20
Base Metal Price, % relative		9.0

Density, g/cm³		7.8
Density, g/cm³		7.7

Embodied Carbon, kg CO₂/kg material		3.7
Embodied Carbon, kg CO₂/kg material		2.2

Embodied Energy, MJ/kg		52
Embodied Energy, MJ/kg		31

Embodied Water, L/kg		180
Embodied Water, L/kg		120

Common Calculations

PREN (Pitting Resistance)		25
PREN (Pitting Resistance)		18

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

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

Strength to Weight: Axial, points		22
Strength to Weight: Axial, points		18

Strength to Weight: Bending, points		21
Strength to Weight: Bending, points		18

Thermal Diffusivity, mm²/s		4.0
Thermal Diffusivity, mm²/s		6.7

Thermal Shock Resistance, points		16
Thermal Shock Resistance, points		13

Alloy Composition

Carbon (C), %		0.040 to 0.15
Carbon (C), %		0 to 0.1

Chromium (Cr), %		22 to 25
Chromium (Cr), %		15 to 18

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

Iron (Fe), %		55.8 to 65.5
Iron (Fe), %		77.8 to 85

Manganese (Mn), %		0.5 to 2.5
Manganese (Mn), %		0 to 1.0

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

Nickel (Ni), %		12 to 14
Nickel (Ni), %		0 to 0.6

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

Silicon (Si), %		0 to 1.0
Silicon (Si), %		0 to 0.9

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