AWS E383 vs. SAE-AISI 4340M Steel

Both AWS E383 and SAE-AISI 4340M steel are iron alloys. They have a modest 38% of their average alloy composition in common, which, by itself, doesn't mean much. There are 23 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is AWS E383 and the bottom bar is SAE-AISI 4340M steel.

AWS E383 (W88028) Weld Metal SAE-AISI 4340M (300M, K44220) Silicon-Vanadium Steel

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		210
Elastic (Young's, Tensile) Modulus, GPa		190

Elongation at Break, %		34
Elongation at Break, %		6.0

Poisson's Ratio		0.28
Poisson's Ratio		0.29

Shear Modulus, GPa		80
Shear Modulus, GPa		72

Tensile Strength: Ultimate (UTS), MPa		580
Tensile Strength: Ultimate (UTS), MPa		2340

Thermal Properties

Latent Heat of Fusion, J/g		320
Latent Heat of Fusion, J/g		280

Melting Completion (Liquidus), °C		1420
Melting Completion (Liquidus), °C		1440

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

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		38

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

Otherwise Unclassified Properties

Base Metal Price, % relative		37
Base Metal Price, % relative		3.9

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

Embodied Carbon, kg CO₂/kg material		6.4
Embodied Carbon, kg CO₂/kg material		1.9

Embodied Energy, MJ/kg		89
Embodied Energy, MJ/kg		26

Embodied Water, L/kg		240
Embodied Water, L/kg		55

Common Calculations

PREN (Pitting Resistance)		40
PREN (Pitting Resistance)		2.2

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

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

Strength to Weight: Axial, points		20
Strength to Weight: Axial, points		84

Strength to Weight: Bending, points		19
Strength to Weight: Bending, points		51

Thermal Diffusivity, mm²/s		3.1
Thermal Diffusivity, mm²/s		10

Thermal Shock Resistance, points		15
Thermal Shock Resistance, points		70

Alloy Composition

Carbon (C), %		0 to 0.030
Carbon (C), %		0.38 to 0.43

Chromium (Cr), %		26.5 to 29
Chromium (Cr), %		0.7 to 1.0

Copper (Cu), %		0.6 to 1.5
Copper (Cu), %		0

Iron (Fe), %		28.8 to 39.2
Iron (Fe), %		93.3 to 94.8

Manganese (Mn), %		0.5 to 2.5
Manganese (Mn), %		0.65 to 0.9

Molybdenum (Mo), %		3.2 to 4.2
Molybdenum (Mo), %		0.35 to 0.45

Nickel (Ni), %		30 to 33
Nickel (Ni), %		1.7 to 2.0

Phosphorus (P), %		0 to 0.020
Phosphorus (P), %		0 to 0.012

Silicon (Si), %		0 to 0.9
Silicon (Si), %		1.5 to 1.8

Sulfur (S), %		0 to 0.020
Sulfur (S), %		0 to 0.012

Vanadium (V), %		0
Vanadium (V), %		0.050 to 0.1