AWS E320LR vs. SAE-AISI 4142 Steel

Both AWS E320LR and SAE-AISI 4142 steel are iron alloys. They have a modest 40% of their average alloy composition in common, which, by itself, doesn't mean much. There are 20 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 E320LR and the bottom bar is SAE-AISI 4142 steel.

AWS E320LR (W88022) Weld Metal SAE-AISI 4142 (G41420) Cr-Mo Steel

Metric UnitsUS Customary Units

Mechanical Properties

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

Elongation at Break, %		34
Elongation at Break, %		20

Poisson's Ratio		0.28
Poisson's Ratio		0.29

Shear Modulus, GPa		77
Shear Modulus, GPa		73

Tensile Strength: Ultimate (UTS), MPa		580
Tensile Strength: Ultimate (UTS), MPa		590

Thermal Properties

Latent Heat of Fusion, J/g		300
Latent Heat of Fusion, J/g		250

Melting Completion (Liquidus), °C		1410
Melting Completion (Liquidus), °C		1460

Melting Onset (Solidus), °C		1360
Melting Onset (Solidus), °C		1420

Specific Heat Capacity, J/kg-K		460
Specific Heat Capacity, J/kg-K		470

Thermal Expansion, µm/m-K		14
Thermal Expansion, µm/m-K		12

Otherwise Unclassified Properties

Base Metal Price, % relative		36
Base Metal Price, % relative		2.4

Density, g/cm³		8.2
Density, g/cm³		7.8

Embodied Carbon, kg CO₂/kg material		6.2
Embodied Carbon, kg CO₂/kg material		1.5

Embodied Energy, MJ/kg		87
Embodied Energy, MJ/kg		20

Embodied Water, L/kg		220
Embodied Water, L/kg		51

Common Calculations

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

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

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 Shock Resistance, points		15
Thermal Shock Resistance, points		19

Alloy Composition

Carbon (C), %		0 to 0.030
Carbon (C), %		0.4 to 0.45

Chromium (Cr), %		19 to 21
Chromium (Cr), %		0.8 to 1.1

Copper (Cu), %		3.0 to 4.0
Copper (Cu), %		0

Iron (Fe), %		32.7 to 42.5
Iron (Fe), %		96.8 to 97.8

Manganese (Mn), %		1.5 to 2.5
Manganese (Mn), %		0.75 to 1.0

Molybdenum (Mo), %		2.0 to 3.0
Molybdenum (Mo), %		0.15 to 0.25

Nickel (Ni), %		32 to 36
Nickel (Ni), %		0

Niobium (Nb), %		0 to 0.4
Niobium (Nb), %		0

Phosphorus (P), %		0 to 0.020
Phosphorus (P), %		0 to 0.035

Silicon (Si), %		0 to 0.3
Silicon (Si), %		0.15 to 0.35

Sulfur (S), %		0 to 0.015
Sulfur (S), %		0 to 0.040