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EN 1.7240 Steel vs. AWS E309L

Both EN 1.7240 steel and AWS E309L are iron alloys. They have 63% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.7240 steel and the bottom bar is AWS E309L.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
79
Tensile Strength: Ultimate (UTS), MPa 670 to 1990
580

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1410
1370
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 44
15
Thermal Expansion, µm/m-K 13
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
20
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.5
3.7
Embodied Energy, MJ/kg 20
52
Embodied Water, L/kg 50
180

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24 to 71
21
Strength to Weight: Bending, points 22 to 45
20
Thermal Diffusivity, mm2/s 12
4.0
Thermal Shock Resistance, points 20 to 59
15

Alloy Composition

Carbon (C), % 0.56 to 0.64
0 to 0.040
Chromium (Cr), % 0.7 to 1.0
22 to 25
Copper (Cu), % 0
0 to 0.75
Iron (Fe), % 96.7 to 97.9
55.9 to 65.5
Manganese (Mn), % 0.7 to 1.0
0.5 to 2.5
Molybdenum (Mo), % 0.15 to 0.25
0 to 0.75
Nickel (Ni), % 0
12 to 14
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.030