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EN 1.7244 Steel vs. Grade TDCrV Steel

Both EN 1.7244 steel and grade TDCrV steel are iron alloys. Their average alloy composition is basically identical.

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

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 180
520
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Reduction in Area, % 65 to 67
51
Shear Modulus, GPa 73
80
Tensile Strength: Ultimate (UTS), MPa 470 to 1390
1730

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 420
410
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 44
49
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 2.5
2.1
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.5
1.9
Embodied Energy, MJ/kg 20
26
Embodied Water, L/kg 51
49

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17 to 49
61
Strength to Weight: Bending, points 17 to 35
41
Thermal Diffusivity, mm2/s 12
13
Thermal Shock Resistance, points 14 to 41
51

Alloy Composition

Carbon (C), % 0.15 to 0.21
0.62 to 0.72
Chromium (Cr), % 0.9 to 1.2
0.4 to 0.6
Copper (Cu), % 0 to 0.25
0 to 0.1
Iron (Fe), % 96.8 to 98.2
97.8 to 98.8
Manganese (Mn), % 0.6 to 0.9
0.5 to 0.9
Molybdenum (Mo), % 0.15 to 0.25
0
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.3
0.15 to 0.3
Sulfur (S), % 0.020 to 0.040
0 to 0.020
Vanadium (V), % 0
0.15 to 0.25