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AWS E33-31 vs. EN 1.7218 Steel

Both AWS E33-31 and EN 1.7218 steel are iron alloys. They have a modest 32% of their average alloy composition in common, which, by itself, doesn't mean much. There are 19 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is AWS E33-31 and the bottom bar is EN 1.7218 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 81
73
Tensile Strength: Ultimate (UTS), MPa 810
500 to 1550

Thermal Properties

Latent Heat of Fusion, J/g 320
250
Melting Completion (Liquidus), °C 1380
1460
Melting Onset (Solidus), °C 1330
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 14
13

Otherwise Unclassified Properties

Base Metal Price, % relative 36
2.6
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 6.0
1.5
Embodied Energy, MJ/kg 86
20
Embodied Water, L/kg 260
52

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28
18 to 55
Strength to Weight: Bending, points 24
18 to 38
Thermal Shock Resistance, points 19
15 to 46

Alloy Composition

Aluminum (Al), % 0
0 to 0.040
Carbon (C), % 0 to 0.030
0.22 to 0.29
Chromium (Cr), % 31 to 35
0.9 to 1.2
Copper (Cu), % 0.4 to 0.8
0 to 0.3
Iron (Fe), % 24.7 to 34.8
96.2 to 98.1
Manganese (Mn), % 2.5 to 4.0
0.6 to 0.9
Molybdenum (Mo), % 1.0 to 2.0
0.15 to 0.3
Nickel (Ni), % 30 to 32
0 to 0.3
Nitrogen (N), % 0.3 to 0.5
0
Phosphorus (P), % 0 to 0.020
0 to 0.035
Silicon (Si), % 0 to 0.9
0 to 0.4
Sulfur (S), % 0 to 0.010
0 to 0.035