AWS E219 vs. ASTM A369 Grade FP9

Both AWS E219 and ASTM A369 grade FP9 are iron alloys. They have 73% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is AWS E219 and the bottom bar is ASTM A369 grade FP9.

AWS E219 (W32310) Weld Metal ASTM A369 Grade FP9 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, %		17
Elongation at Break, %		20

Poisson's Ratio		0.28
Poisson's Ratio		0.28

Shear Modulus, GPa		78
Shear Modulus, GPa		75

Tensile Strength: Ultimate (UTS), MPa		690
Tensile Strength: Ultimate (UTS), MPa		470

Thermal Properties

Latent Heat of Fusion, J/g		290
Latent Heat of Fusion, J/g		270

Melting Completion (Liquidus), °C		1400
Melting Completion (Liquidus), °C		1450

Melting Onset (Solidus), °C		1360
Melting Onset (Solidus), °C		1410

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

Thermal Conductivity, W/m-K		14
Thermal Conductivity, W/m-K		26

Thermal Expansion, µm/m-K		15
Thermal Expansion, µm/m-K		13

Otherwise Unclassified Properties

Base Metal Price, % relative		15
Base Metal Price, % relative		6.5

Density, g/cm³		7.7
Density, g/cm³		7.8

Embodied Carbon, kg CO₂/kg material		3.1
Embodied Carbon, kg CO₂/kg material		2.0

Embodied Energy, MJ/kg		44
Embodied Energy, MJ/kg		28

Embodied Water, L/kg		160
Embodied Water, L/kg		87

Common Calculations

PREN (Pitting Resistance)		25
PREN (Pitting Resistance)		12

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

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

Strength to Weight: Axial, points		25
Strength to Weight: Axial, points		17

Strength to Weight: Bending, points		23
Strength to Weight: Bending, points		17

Thermal Diffusivity, mm²/s		3.8
Thermal Diffusivity, mm²/s		6.9

Thermal Shock Resistance, points		17
Thermal Shock Resistance, points		13

Alloy Composition

Carbon (C), %		0 to 0.060
Carbon (C), %		0 to 0.15

Chromium (Cr), %		19 to 21.5
Chromium (Cr), %		8.0 to 10

Copper (Cu), %		0 to 0.75
Copper (Cu), %		0

Iron (Fe), %		58.6 to 67.4
Iron (Fe), %		87.1 to 90.3

Manganese (Mn), %		8.0 to 10
Manganese (Mn), %		0.3 to 0.6

Molybdenum (Mo), %		0 to 0.75
Molybdenum (Mo), %		0.9 to 1.1

Nickel (Ni), %		5.5 to 7.0
Nickel (Ni), %		0

Nitrogen (N), %		0.1 to 0.3
Nitrogen (N), %		0

Phosphorus (P), %		0 to 0.040
Phosphorus (P), %		0 to 0.030

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

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