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AWS E409Nb vs. EN 1.7701 Steel

Both AWS E409Nb and EN 1.7701 steel are iron alloys. They have 86% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is AWS E409Nb and the bottom bar is EN 1.7701 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Tensile Strength: Ultimate (UTS), MPa 500
670 to 2010

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
44
Thermal Expansion, µm/m-K 14
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 13
2.6
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.9
1.9
Embodied Energy, MJ/kg 42
26
Embodied Water, L/kg 100
52

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18
24 to 71
Strength to Weight: Bending, points 18
22 to 45
Thermal Diffusivity, mm2/s 6.8
12
Thermal Shock Resistance, points 14
20 to 59

Alloy Composition

Carbon (C), % 0 to 0.12
0.48 to 0.56
Chromium (Cr), % 11 to 14
0.9 to 1.2
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 80.2 to 88.5
96.2 to 97.7
Manganese (Mn), % 0 to 1.0
0.7 to 1.1
Molybdenum (Mo), % 0 to 0.75
0.15 to 0.3
Nickel (Ni), % 0 to 0.6
0
Niobium (Nb), % 0.5 to 1.5
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 0.025
Vanadium (V), % 0
0.1 to 0.2