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Grade VDC Steel vs. EN 1.5408 Steel

Both grade VDC steel and EN 1.5408 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is grade VDC steel and the bottom bar is EN 1.5408 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 510
140 to 160
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Reduction in Area, % 50
64 to 69
Shear Modulus, GPa 80
73
Tensile Strength: Ultimate (UTS), MPa 1700
460 to 1620

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
400
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51
48
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
2.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.4
Embodied Energy, MJ/kg 19
19
Embodied Water, L/kg 47
48

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 60
16 to 57
Strength to Weight: Bending, points 40
17 to 39
Thermal Diffusivity, mm2/s 14
13
Thermal Shock Resistance, points 50
13 to 48

Alloy Composition

Boron (B), % 0
0.00080 to 0.0050
Carbon (C), % 0.6 to 0.75
0.28 to 0.32
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
97.7 to 98.8
Manganese (Mn), % 0.5 to 1.0
0.8 to 1.0
Molybdenum (Mo), % 0
0.080 to 0.12
Phosphorus (P), % 0 to 0.020
0 to 0.025
Silicon (Si), % 0.15 to 0.3
0 to 0.3
Sulfur (S), % 0 to 0.020
0 to 0.025