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AWS E409Nb vs. AWS E209

Both AWS E409Nb and AWS E209 are iron alloys. They have 73% of their average alloy composition in common. There are 21 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 AWS E209.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 23
17
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
79
Tensile Strength: Ultimate (UTS), MPa 500
770

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1410
1370
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 14
14

Otherwise Unclassified Properties

Base Metal Price, % relative 13
21
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.9
4.4
Embodied Energy, MJ/kg 42
63
Embodied Water, L/kg 100
180

Common Calculations

PREN (Pitting Resistance) 14
33
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 18
28
Strength to Weight: Bending, points 18
24
Thermal Shock Resistance, points 14
19

Alloy Composition

Carbon (C), % 0 to 0.12
0 to 0.060
Chromium (Cr), % 11 to 14
20.5 to 24
Copper (Cu), % 0 to 0.75
0 to 0.75
Iron (Fe), % 80.2 to 88.5
51.5 to 64.3
Manganese (Mn), % 0 to 1.0
4.0 to 7.0
Molybdenum (Mo), % 0 to 0.75
1.5 to 3.0
Nickel (Ni), % 0 to 0.6
9.5 to 12
Niobium (Nb), % 0.5 to 1.5
0
Nitrogen (N), % 0
0.1 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0
0.1 to 0.3