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Grade TDSiCr Steel vs. Grade TDCrV Steel

Both grade TDSiCr steel and grade TDCrV steel are iron alloys. Both are furnished in the hardened (H) condition. Their average alloy composition is basically identical.

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

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 590
520
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Reduction in Area, % 48
51
Shear Modulus, GPa 80
80
Tensile Strength: Ultimate (UTS), MPa 1950
1730

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 410
410
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 46
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 8.5
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
2.1
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 1.5
1.9
Embodied Energy, MJ/kg 20
26
Embodied Water, L/kg 48
49

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 70
61
Strength to Weight: Bending, points 45
41
Thermal Diffusivity, mm2/s 12
13
Thermal Shock Resistance, points 58
51

Alloy Composition

Carbon (C), % 0.5 to 0.6
0.62 to 0.72
Chromium (Cr), % 0.5 to 0.8
0.4 to 0.6
Copper (Cu), % 0 to 0.1
0 to 0.1
Iron (Fe), % 96.6 to 97.8
97.8 to 98.8
Manganese (Mn), % 0.5 to 0.9
0.5 to 0.9
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 1.2 to 1.6
0.15 to 0.3
Sulfur (S), % 0 to 0.020
0 to 0.020
Vanadium (V), % 0
0.15 to 0.25