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AWS E3155 vs. EN 1.7321 Steel

Both AWS E3155 and EN 1.7321 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 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 AWS E3155 and the bottom bar is EN 1.7321 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 81
73
Tensile Strength: Ultimate (UTS), MPa 770
490 to 1460

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 13
45
Thermal Expansion, µm/m-K 13
13

Otherwise Unclassified Properties

Base Metal Price, % relative 70
2.5
Density, g/cm3 8.4
7.9
Embodied Carbon, kg CO2/kg material 7.7
1.5
Embodied Energy, MJ/kg 110
20
Embodied Water, L/kg 300
50

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 26
17 to 52
Strength to Weight: Bending, points 22
18 to 36
Thermal Diffusivity, mm2/s 3.3
12
Thermal Shock Resistance, points 20
14 to 43

Alloy Composition

Carbon (C), % 0 to 0.1
0.17 to 0.23
Chromium (Cr), % 20 to 22.5
0.3 to 0.6
Cobalt (Co), % 18.5 to 21
0
Copper (Cu), % 0 to 0.75
0 to 0.25
Iron (Fe), % 23.3 to 36.3
97.1 to 98.4
Manganese (Mn), % 1.0 to 2.5
0.7 to 1.0
Molybdenum (Mo), % 2.5 to 3.5
0.4 to 0.5
Nickel (Ni), % 19 to 21
0
Niobium (Nb), % 0.75 to 1.3
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.3
Sulfur (S), % 0 to 0.030
0 to 0.025
Tungsten (W), % 2.0 to 3.0
0