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AWS E309Nb vs. Grade FDSiCrV Steel

Both AWS E309Nb and grade FDSiCrV steel are iron alloys. They have 62% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is AWS E309Nb and the bottom bar is grade FDSiCrV steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
80
Tensile Strength: Ultimate (UTS), MPa 620
2100

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Melting Completion (Liquidus), °C 1420
1440
Melting Onset (Solidus), °C 1380
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
47
Thermal Expansion, µm/m-K 14
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 25
2.3
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 4.4
1.9
Embodied Energy, MJ/kg 64
26
Embodied Water, L/kg 180
50

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
75
Strength to Weight: Bending, points 21
47
Thermal Diffusivity, mm2/s 4.0
13
Thermal Shock Resistance, points 16
63

Alloy Composition

Carbon (C), % 0 to 0.12
0.5 to 0.7
Chromium (Cr), % 22 to 25
0.5 to 1.0
Copper (Cu), % 0 to 0.75
0 to 0.12
Iron (Fe), % 54.8 to 64.8
96 to 97.8
Manganese (Mn), % 0.5 to 2.5
0.4 to 0.9
Molybdenum (Mo), % 0 to 0.75
0
Nickel (Ni), % 12 to 14
0
Niobium (Nb), % 0.7 to 1.0
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
1.2 to 1.7
Sulfur (S), % 0 to 0.030
0 to 0.025
Vanadium (V), % 0
0.1 to 0.25