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Grade VDC Steel vs. EN 1.7244 Steel

Both grade VDC steel and EN 1.7244 steel are iron alloys. They have a very high 99% of their average alloy composition in common.

For each property being compared, the top bar is grade VDC steel and the bottom bar is EN 1.7244 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 510
140 to 180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Reduction in Area, % 50
65 to 67
Shear Modulus, GPa 80
73
Tensile Strength: Ultimate (UTS), MPa 1700
470 to 1390

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
420
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
44
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
2.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.5
Embodied Energy, MJ/kg 19
20
Embodied Water, L/kg 47
51

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 60
17 to 49
Strength to Weight: Bending, points 40
17 to 35
Thermal Diffusivity, mm2/s 14
12
Thermal Shock Resistance, points 50
14 to 41

Alloy Composition

Carbon (C), % 0.6 to 0.75
0.15 to 0.21
Chromium (Cr), % 0 to 0.3
0.9 to 1.2
Copper (Cu), % 0 to 0.060
0 to 0.25
Iron (Fe), % 98.3 to 99.35
96.8 to 98.2
Manganese (Mn), % 0.5 to 1.0
0.6 to 0.9
Molybdenum (Mo), % 0
0.15 to 0.25
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
0.020 to 0.040