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AWS E240 vs. EN 1.8550 Steel

Both AWS E240 and EN 1.8550 steel are iron alloys. They have 67% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is AWS E240 and the bottom bar is EN 1.8550 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 17
11
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 770
1000

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Melting Completion (Liquidus), °C 1390
1450
Melting Onset (Solidus), °C 1350
1410
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
40
Thermal Expansion, µm/m-K 15
13

Otherwise Unclassified Properties

Base Metal Price, % relative 14
3.4
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.0
1.7
Embodied Energy, MJ/kg 42
23
Embodied Water, L/kg 160
67

Common Calculations

PREN (Pitting Resistance) 22
2.3
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28
36
Strength to Weight: Bending, points 24
29
Thermal Diffusivity, mm2/s 3.9
11
Thermal Shock Resistance, points 19
29

Alloy Composition

Aluminum (Al), % 0
0.8 to 1.2
Carbon (C), % 0 to 0.060
0.3 to 0.37
Chromium (Cr), % 17 to 19
1.5 to 1.8
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 58.6 to 68.4
94.4 to 96.3
Manganese (Mn), % 10.5 to 13.5
0.4 to 0.7
Molybdenum (Mo), % 0 to 0.75
0.15 to 0.25
Nickel (Ni), % 4.0 to 6.0
0.85 to 1.2
Nitrogen (N), % 0.1 to 0.3
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.035