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AWS E347 vs. EN 1.7390 Steel

Both AWS E347 and EN 1.7390 steel are iron alloys. They have 73% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is AWS E347 and the bottom bar is EN 1.7390 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
16
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
74
Tensile Strength: Ultimate (UTS), MPa 580
710

Thermal Properties

Latent Heat of Fusion, J/g 290
260
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
40
Thermal Expansion, µm/m-K 14
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
8.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 19
4.3
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.7
1.7
Embodied Energy, MJ/kg 53
23
Embodied Water, L/kg 150
69

Common Calculations

PREN (Pitting Resistance) 21
6.8
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
25
Strength to Weight: Bending, points 20
23
Thermal Diffusivity, mm2/s 4.2
11
Thermal Shock Resistance, points 15
20

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.18
Chromium (Cr), % 18 to 21
4.0 to 6.0
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 61.9 to 72.5
91.9 to 95.3
Manganese (Mn), % 0.5 to 2.5
0.3 to 0.8
Molybdenum (Mo), % 0 to 0.75
0.45 to 0.65
Nickel (Ni), % 9.0 to 11
0
Niobium (Nb), % 0 to 1.0
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 0.015