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EN 1.7239 Steel vs. AWS E240

Both EN 1.7239 steel and AWS E240 are iron alloys. They have 66% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is EN 1.7239 steel and the bottom bar is AWS E240.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Tensile Strength: Ultimate (UTS), MPa 660 to 1990
770

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Melting Completion (Liquidus), °C 1460
1390
Melting Onset (Solidus), °C 1410
1350
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 44
15
Thermal Expansion, µm/m-K 13
15

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
14
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.5
3.0
Embodied Energy, MJ/kg 20
42
Embodied Water, L/kg 50
160

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 23 to 71
28
Strength to Weight: Bending, points 21 to 45
24
Thermal Diffusivity, mm2/s 12
3.9
Thermal Shock Resistance, points 19 to 59
19

Alloy Composition

Carbon (C), % 0.56 to 0.64
0 to 0.060
Chromium (Cr), % 0.7 to 1.0
17 to 19
Copper (Cu), % 0
0 to 0.75
Iron (Fe), % 96.8 to 98
58.6 to 68.4
Manganese (Mn), % 0.7 to 1.0
10.5 to 13.5
Molybdenum (Mo), % 0.060 to 0.15
0 to 0.75
Nickel (Ni), % 0
4.0 to 6.0
Nitrogen (N), % 0
0.1 to 0.3
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