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AWS E409Nb vs. EN 1.7720 Steel

Both AWS E409Nb and EN 1.7720 steel are iron alloys. They have 86% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is AWS E409Nb and the bottom bar is EN 1.7720 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 23
19
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Tensile Strength: Ultimate (UTS), MPa 500
590
Tensile Strength: Yield (Proof), MPa 380
340

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1410
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
40
Thermal Expansion, µm/m-K 14
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 13
2.8
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.9
2.2
Embodied Energy, MJ/kg 42
30
Embodied Water, L/kg 100
51

Common Calculations

PREN (Pitting Resistance) 14
2.1
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
97
Resilience: Unit (Modulus of Resilience), kJ/m3 380
300
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18
21
Strength to Weight: Bending, points 18
20
Thermal Diffusivity, mm2/s 6.8
11
Thermal Shock Resistance, points 14
17

Alloy Composition

Carbon (C), % 0 to 0.12
0.1 to 0.15
Chromium (Cr), % 11 to 14
0.3 to 0.5
Copper (Cu), % 0 to 0.75
0 to 0.3
Iron (Fe), % 80.2 to 88.5
96.6 to 98.6
Manganese (Mn), % 0 to 1.0
0.4 to 0.7
Molybdenum (Mo), % 0 to 0.75
0.4 to 0.6
Nickel (Ni), % 0 to 0.6
0 to 0.4
Niobium (Nb), % 0.5 to 1.5
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.45
Sulfur (S), % 0 to 0.030
0 to 0.020
Vanadium (V), % 0
0.22 to 0.3