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Grade VDC Steel vs. SAE-AISI O6 Steel

Both grade VDC steel and SAE-AISI O6 steel are iron alloys. They have a very high 98% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is grade VDC steel and the bottom bar is SAE-AISI O6 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
180
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 80
71
Tensile Strength: Ultimate (UTS), MPa 1700
670 to 2070

Thermal Properties

Latent Heat of Fusion, J/g 250
260
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
43
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
2.3
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.4
1.5
Embodied Energy, MJ/kg 19
21
Embodied Water, L/kg 47
47

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 60
24 to 74
Strength to Weight: Bending, points 40
22 to 47
Thermal Diffusivity, mm2/s 14
12
Thermal Shock Resistance, points 50
22 to 69

Alloy Composition

Carbon (C), % 0.6 to 0.75
1.3 to 1.6
Chromium (Cr), % 0 to 0.3
0 to 0.3
Copper (Cu), % 0 to 0.060
0 to 0.25
Iron (Fe), % 98.3 to 99.35
94.6 to 97.7
Manganese (Mn), % 0.5 to 1.0
0.3 to 1.1
Molybdenum (Mo), % 0
0.2 to 0.3
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0 to 0.020
0 to 0.030
Silicon (Si), % 0.15 to 0.3
0.55 to 1.5
Sulfur (S), % 0 to 0.020
0 to 0.030