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Grade VDC Steel vs. AWS E309LMo

Both grade VDC steel and AWS E309LMo 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 (5, in this case) are not shown.

For each property being compared, the top bar is grade VDC steel and the bottom bar is AWS E309LMo.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 80
79
Tensile Strength: Ultimate (UTS), MPa 1700
580

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Melting Completion (Liquidus), °C 1450
1430
Melting Onset (Solidus), °C 1410
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
15
Thermal Expansion, µm/m-K 13
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
22
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
4.2
Embodied Energy, MJ/kg 19
59
Embodied Water, L/kg 47
180

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 60
21
Strength to Weight: Bending, points 40
20
Thermal Diffusivity, mm2/s 14
3.9
Thermal Shock Resistance, points 50
15

Alloy Composition

Carbon (C), % 0.6 to 0.75
0 to 0.040
Chromium (Cr), % 0 to 0.3
22 to 25
Copper (Cu), % 0 to 0.060
0 to 0.75
Iron (Fe), % 98.3 to 99.35
53.6 to 63.5
Manganese (Mn), % 0.5 to 1.0
0.5 to 2.5
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0
12 to 14
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0.15 to 0.3
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.030