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AWS E240 vs. AISI W2 Steel

Both AWS E240 and AISI W2 steel are iron alloys. They have 65% of their average alloy composition in common. There are 21 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 E240 and the bottom bar is AISI W2 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 77
72
Tensile Strength: Ultimate (UTS), MPa 770
580 to 2400

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Melting Completion (Liquidus), °C 1390
1450
Melting Onset (Solidus), °C 1350
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
45
Thermal Expansion, µm/m-K 15
12

Otherwise Unclassified Properties

Base Metal Price, % relative 14
2.3
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.0
2.0
Embodied Energy, MJ/kg 42
29
Embodied Water, L/kg 160
48

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28
21 to 86
Strength to Weight: Bending, points 24
20 to 51
Thermal Diffusivity, mm2/s 3.9
12
Thermal Shock Resistance, points 19
19 to 80

Alloy Composition

Carbon (C), % 0 to 0.060
0.85 to 1.5
Chromium (Cr), % 17 to 19
0 to 0.15
Copper (Cu), % 0 to 0.75
0 to 0.2
Iron (Fe), % 58.6 to 68.4
96.2 to 98.6
Manganese (Mn), % 10.5 to 13.5
0.35 to 0.74
Molybdenum (Mo), % 0 to 0.75
0 to 0.1
Nickel (Ni), % 4.0 to 6.0
0 to 0.2
Nitrogen (N), % 0.1 to 0.3
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