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AWS E349 vs. EN 1.7707 Steel

Both AWS E349 and EN 1.7707 steel are iron alloys. They have 70% of their average alloy composition in common. There are 25 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 E349 and the bottom bar is EN 1.7707 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 29
11
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Tensile Strength: Ultimate (UTS), MPa 770
1010

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 15
39
Thermal Expansion, µm/m-K 14
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 25
3.3
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.9
1.9
Embodied Energy, MJ/kg 72
27
Embodied Water, L/kg 150
58

Common Calculations

PREN (Pitting Resistance) 24
3.2
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 27
36
Strength to Weight: Bending, points 24
29
Thermal Diffusivity, mm2/s 4.1
11
Thermal Shock Resistance, points 20
29

Alloy Composition

Carbon (C), % 0 to 0.13
0.26 to 0.34
Chromium (Cr), % 18 to 21
2.3 to 2.7
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 60.5 to 71.1
94.7 to 96.8
Manganese (Mn), % 0.5 to 2.5
0.4 to 0.7
Molybdenum (Mo), % 0.35 to 0.65
0.15 to 0.25
Nickel (Ni), % 8.0 to 10
0 to 0.6
Niobium (Nb), % 0.75 to 1.2
0
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.035
Titanium (Ti), % 0 to 0.15
0
Tungsten (W), % 1.3 to 1.8
0
Vanadium (V), % 0.1 to 0.3
0.1 to 0.2