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AWS E409Nb vs. AISI W2 Steel

Both AWS E409Nb and AISI W2 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 (5, in this case) are not shown.

For each property being compared, the top bar is AWS E409Nb and the bottom bar is AISI W2 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
72
Tensile Strength: Ultimate (UTS), MPa 500
580 to 2400

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
45
Thermal Expansion, µm/m-K 14
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 13
2.3
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.9
2.0
Embodied Energy, MJ/kg 42
29
Embodied Water, L/kg 100
48

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18
21 to 86
Strength to Weight: Bending, points 18
20 to 51
Thermal Diffusivity, mm2/s 6.8
12
Thermal Shock Resistance, points 14
19 to 80

Alloy Composition

Carbon (C), % 0 to 0.12
0.85 to 1.5
Chromium (Cr), % 11 to 14
0 to 0.15
Copper (Cu), % 0 to 0.75
0 to 0.2
Iron (Fe), % 80.2 to 88.5
96.2 to 98.6
Manganese (Mn), % 0 to 1.0
0.35 to 0.74
Molybdenum (Mo), % 0 to 0.75
0 to 0.1
Nickel (Ni), % 0 to 0.6
0 to 0.2
Niobium (Nb), % 0.5 to 1.5
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0.1 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.025
Tungsten (W), % 0
0 to 0.15
Vanadium (V), % 0
0.15 to 0.35