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AWS E209 vs. SAE-AISI 4340M Steel

Both AWS E209 and SAE-AISI 4340M steel are iron alloys. They have 62% of their average alloy composition in common. There are 21 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 4340M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 17
6.0
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
72
Tensile Strength: Ultimate (UTS), MPa 770
2340

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Melting Completion (Liquidus), °C 1420
1440
Melting Onset (Solidus), °C 1370
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 14
13

Otherwise Unclassified Properties

Base Metal Price, % relative 21
3.9
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.4
1.9
Embodied Energy, MJ/kg 63
26
Embodied Water, L/kg 180
55

Common Calculations

PREN (Pitting Resistance) 33
2.2
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
84
Strength to Weight: Bending, points 24
51
Thermal Shock Resistance, points 19
70

Alloy Composition

Carbon (C), % 0 to 0.060
0.38 to 0.43
Chromium (Cr), % 20.5 to 24
0.7 to 1.0
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 51.5 to 64.3
93.3 to 94.8
Manganese (Mn), % 4.0 to 7.0
0.65 to 0.9
Molybdenum (Mo), % 1.5 to 3.0
0.35 to 0.45
Nickel (Ni), % 9.5 to 12
1.7 to 2.0
Nitrogen (N), % 0.1 to 0.3
0
Phosphorus (P), % 0 to 0.040
0 to 0.012
Silicon (Si), % 0 to 1.0
1.5 to 1.8
Sulfur (S), % 0 to 0.030
0 to 0.012
Vanadium (V), % 0.1 to 0.3
0.050 to 0.1