AWS E320LR vs. ASTM A369 Grade FP11

Both AWS E320LR and ASTM A369 grade FP11 are iron alloys. They have 40% 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 ASTM A369 grade FP11.

AWS E320LR (W88022) Weld Metal ASTM A369 Grade FP11 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		470

Thermal Properties

Latent Heat of Fusion, J/g		300
Latent Heat of Fusion, J/g		260

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		13

Otherwise Unclassified Properties

Base Metal Price, % relative		36
Base Metal Price, % relative		2.9

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

Embodied Carbon, kg CO₂/kg material		6.2
Embodied Carbon, kg CO₂/kg material		1.6

Embodied Energy, MJ/kg		87
Embodied Energy, MJ/kg		21

Embodied Water, L/kg		220
Embodied Water, L/kg		52

Common Calculations

PREN (Pitting Resistance)		28
PREN (Pitting Resistance)		3.0

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		17

Strength to Weight: Bending, points		19
Strength to Weight: Bending, points		17

Thermal Shock Resistance, points		15
Thermal Shock Resistance, points		14

Alloy Composition

Carbon (C), %		0 to 0.030
Carbon (C), %		0.050 to 0.15

Chromium (Cr), %		19 to 21
Chromium (Cr), %		1.0 to 1.5

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

Iron (Fe), %		32.7 to 42.5
Iron (Fe), %		96.1 to 97.7

Manganese (Mn), %		1.5 to 2.5
Manganese (Mn), %		0.3 to 0.6

Molybdenum (Mo), %		2.0 to 3.0
Molybdenum (Mo), %		0.44 to 0.65

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 0.025

Silicon (Si), %		0 to 0.3
Silicon (Si), %		0.5 to 1.0

Sulfur (S), %		0 to 0.015
Sulfur (S), %		0 to 0.025