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AWS E33-31 vs. EN 1.6579 Steel

Both AWS E33-31 and EN 1.6579 steel are iron alloys. They have a modest 34% of their average alloy composition in common, which, by itself, doesn't mean much. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is AWS E33-31 and the bottom bar is EN 1.6579 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 29
11 to 14
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 81
73
Tensile Strength: Ultimate (UTS), MPa 810
850 to 980

Thermal Properties

Latent Heat of Fusion, J/g 320
250
Melting Completion (Liquidus), °C 1380
1460
Melting Onset (Solidus), °C 1330
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 14
13

Otherwise Unclassified Properties

Base Metal Price, % relative 36
3.7
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 6.0
1.7
Embodied Energy, MJ/kg 86
22
Embodied Water, L/kg 260
56

Common Calculations

PREN (Pitting Resistance) 44
2.4
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28
30 to 35
Strength to Weight: Bending, points 24
25 to 28
Thermal Shock Resistance, points 19
25 to 29

Alloy Composition

Carbon (C), % 0 to 0.030
0.32 to 0.38
Chromium (Cr), % 31 to 35
1.4 to 1.7
Copper (Cu), % 0.4 to 0.8
0
Iron (Fe), % 24.7 to 34.8
94.2 to 96.1
Manganese (Mn), % 2.5 to 4.0
0.6 to 1.0
Molybdenum (Mo), % 1.0 to 2.0
0.15 to 0.35
Nickel (Ni), % 30 to 32
1.4 to 1.7
Nitrogen (N), % 0.3 to 0.5
0
Phosphorus (P), % 0 to 0.020
0 to 0.025
Silicon (Si), % 0 to 0.9
0 to 0.6
Sulfur (S), % 0 to 0.010
0 to 0.030