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AWS E409Nb vs. AWS E320

Both AWS E409Nb and AWS E320 are iron alloys. They have 53% 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 E320.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 23
34
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 500
620

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Melting Completion (Liquidus), °C 1460
1410
Melting Onset (Solidus), °C 1410
1360
Specific Heat Capacity, J/kg-K 480
460
Thermal Expansion, µm/m-K 14
14

Otherwise Unclassified Properties

Base Metal Price, % relative 13
38
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 2.9
6.5
Embodied Energy, MJ/kg 42
91
Embodied Water, L/kg 100
220

Common Calculations

PREN (Pitting Resistance) 14
28
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 Shock Resistance, points 14
16

Alloy Composition

Carbon (C), % 0 to 0.12
0 to 0.070
Chromium (Cr), % 11 to 14
19 to 21
Copper (Cu), % 0 to 0.75
3.0 to 4.0
Iron (Fe), % 80.2 to 88.5
31.8 to 43.5
Manganese (Mn), % 0 to 1.0
0.5 to 2.5
Molybdenum (Mo), % 0 to 0.75
2.0 to 3.0
Nickel (Ni), % 0 to 0.6
32 to 36
Niobium (Nb), % 0.5 to 1.5
0 to 1.0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.030