AWS E320LR vs. ACI-ASTM CH20 Steel

Both AWS E320LR and ACI-ASTM CH20 steel are iron alloys. They have 72% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is AWS E320LR and the bottom bar is ACI-ASTM CH20 steel.

AWS E320LR (W88022) Weld Metal ACI-ASTM CH20 (SCS17, J93402) Cast Stainless Steel

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, %		38

Poisson's Ratio		0.28
Poisson's Ratio		0.27

Shear Modulus, GPa		77
Shear Modulus, GPa		78

Tensile Strength: Ultimate (UTS), MPa		580
Tensile Strength: Ultimate (UTS), MPa		610

Thermal Properties

Latent Heat of Fusion, J/g		300
Latent Heat of Fusion, J/g		310

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

Melting Onset (Solidus), °C		1360
Melting Onset (Solidus), °C		1430

Specific Heat Capacity, J/kg-K		460
Specific Heat Capacity, J/kg-K		480

Thermal Expansion, µm/m-K		14
Thermal Expansion, µm/m-K		15

Otherwise Unclassified Properties

Base Metal Price, % relative		36
Base Metal Price, % relative		20

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

Embodied Carbon, kg CO₂/kg material		6.2
Embodied Carbon, kg CO₂/kg material		3.7

Embodied Energy, MJ/kg		87
Embodied Energy, MJ/kg		53

Embodied Water, L/kg		220
Embodied Water, L/kg		180

Common Calculations

PREN (Pitting Resistance)		28
PREN (Pitting Resistance)		25

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

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

Strength to Weight: Axial, points		20
Strength to Weight: Axial, points		22

Strength to Weight: Bending, points		19
Strength to Weight: Bending, points		21

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

Alloy Composition

Carbon (C), %		0 to 0.030
Carbon (C), %		0 to 0.2

Chromium (Cr), %		19 to 21
Chromium (Cr), %		22 to 26

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

Iron (Fe), %		32.7 to 42.5
Iron (Fe), %		54.7 to 66

Manganese (Mn), %		1.5 to 2.5
Manganese (Mn), %		0 to 1.5

Molybdenum (Mo), %		2.0 to 3.0
Molybdenum (Mo), %		0 to 0.5

Nickel (Ni), %		32 to 36
Nickel (Ni), %		12 to 15

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

Phosphorus (P), %		0 to 0.020
Phosphorus (P), %		0 to 0.040

Silicon (Si), %		0 to 0.3
Silicon (Si), %		0 to 2.0

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