AWS E320 vs. SAE-AISI 1021 Steel

Both AWS E320 and SAE-AISI 1021 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 20 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is AWS E320 and the bottom bar is SAE-AISI 1021 steel.

AWS E320 (W88021) Weld Metal SAE-AISI 1021 (G10210) Carbon 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, %		17 to 27

Poisson's Ratio		0.28
Poisson's Ratio		0.29

Shear Modulus, GPa		77
Shear Modulus, GPa		73

Tensile Strength: Ultimate (UTS), MPa		620
Tensile Strength: Ultimate (UTS), MPa		480 to 530

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		38
Base Metal Price, % relative		1.8

Density, g/cm³		8.2
Density, g/cm³		7.9

Embodied Carbon, kg CO₂/kg material		6.5
Embodied Carbon, kg CO₂/kg material		1.4

Embodied Energy, MJ/kg		91
Embodied Energy, MJ/kg		18

Embodied Water, L/kg		220
Embodied Water, L/kg		46

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		21
Strength to Weight: Axial, points		17 to 19

Strength to Weight: Bending, points		20
Strength to Weight: Bending, points		17 to 18

Thermal Shock Resistance, points		16
Thermal Shock Resistance, points		15 to 17

Alloy Composition

Carbon (C), %		0 to 0.070
Carbon (C), %		0.18 to 0.23

Chromium (Cr), %		19 to 21
Chromium (Cr), %		0

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

Iron (Fe), %		31.8 to 43.5
Iron (Fe), %		98.8 to 99.22

Manganese (Mn), %		0.5 to 2.5
Manganese (Mn), %		0.6 to 0.9

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

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

Niobium (Nb), %		0 to 1.0
Niobium (Nb), %		0

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

Silicon (Si), %		0 to 0.6
Silicon (Si), %		0

Sulfur (S), %		0 to 0.030
Sulfur (S), %		0 to 0.050