AWS E209 vs. SAE-AISI 4145 Steel

Both AWS E209 and SAE-AISI 4145 steel are iron alloys. They have 60% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is AWS E209 and the bottom bar is SAE-AISI 4145 steel.

AWS E209 (W32210) Weld Metal SAE-AISI 4145 (SCM445, G41450) 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, %		16

Poisson's Ratio		0.28
Poisson's Ratio		0.29

Shear Modulus, GPa		79
Shear Modulus, GPa		73

Tensile Strength: Ultimate (UTS), MPa		770
Tensile Strength: Ultimate (UTS), MPa		580

Thermal Properties

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

Melting Completion (Liquidus), °C		1420
Melting Completion (Liquidus), °C		1460

Melting Onset (Solidus), °C		1370
Melting Onset (Solidus), °C		1420

Specific Heat Capacity, J/kg-K		480
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		21
Base Metal Price, % relative		2.4

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

Embodied Carbon, kg CO₂/kg material		4.4
Embodied Carbon, kg CO₂/kg material		1.5

Embodied Energy, MJ/kg		63
Embodied Energy, MJ/kg		20

Embodied Water, L/kg		180
Embodied Water, L/kg		51

Common Calculations

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

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

Strength to Weight: Axial, points		28
Strength to Weight: Axial, points		21

Strength to Weight: Bending, points		24
Strength to Weight: Bending, points		20

Thermal Shock Resistance, points		19
Thermal Shock Resistance, points		17

Alloy Composition

Carbon (C), %		0 to 0.060
Carbon (C), %		0.43 to 0.48

Chromium (Cr), %		20.5 to 24
Chromium (Cr), %		0.8 to 1.1

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

Iron (Fe), %		51.5 to 64.3
Iron (Fe), %		96.7 to 97.7

Manganese (Mn), %		4.0 to 7.0
Manganese (Mn), %		0.75 to 1.0

Molybdenum (Mo), %		1.5 to 3.0
Molybdenum (Mo), %		0.15 to 0.25

Nickel (Ni), %		9.5 to 12
Nickel (Ni), %		0

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

Phosphorus (P), %		0 to 0.040
Phosphorus (P), %		0 to 0.035

Silicon (Si), %		0 to 1.0
Silicon (Si), %		0.15 to 0.35

Sulfur (S), %		0 to 0.030
Sulfur (S), %		0 to 0.040

Vanadium (V), %		0.1 to 0.3
Vanadium (V), %		0