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AWS E309Mo vs. AISI W1 Steel

Both AWS E309Mo and AISI W1 steel are iron alloys. They have 60% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is AWS E309Mo and the bottom bar is AISI W1 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 79
72
Tensile Strength: Ultimate (UTS), MPa 620
590 to 2320

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Melting Completion (Liquidus), °C 1430
1450
Melting Onset (Solidus), °C 1390
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
48
Thermal Expansion, µm/m-K 14
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 22
2.2
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.2
1.6
Embodied Energy, MJ/kg 59
21
Embodied Water, L/kg 180
47

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
21 to 83
Strength to Weight: Bending, points 20
20 to 50
Thermal Diffusivity, mm2/s 3.9
13
Thermal Shock Resistance, points 15
22 to 85

Alloy Composition

Carbon (C), % 0 to 0.12
0.7 to 1.5
Chromium (Cr), % 22 to 25
0 to 0.15
Copper (Cu), % 0 to 0.75
0 to 0.2
Iron (Fe), % 53.6 to 63.5
96.4 to 98.9
Manganese (Mn), % 0.5 to 2.5
0.35 to 0.73
Molybdenum (Mo), % 2.0 to 3.0
0 to 0.1
Nickel (Ni), % 12 to 14
0 to 0.2
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 to 0.1