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Grade FDSiCr Steel vs. Grade VDCrV Steel

Both grade FDSiCr steel and grade VDCrV 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 FDSiCr steel and the bottom bar is grade VDCrV steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 580
520
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Reduction in Area, % 42
51
Shear Modulus, GPa 80
80
Tensile Strength: Ultimate (UTS), MPa 1930
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 48
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 69
61
Strength to Weight: Bending, points 44
41
Thermal Diffusivity, mm2/s 13
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 0.12
0 to 0.060
Iron (Fe), % 96.5 to 97.8
97.8 to 98.8
Manganese (Mn), % 0.5 to 0.9
0.5 to 0.9
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 1.2 to 1.6
0.15 to 0.3
Sulfur (S), % 0 to 0.025
0 to 0.020
Vanadium (V), % 0
0.15 to 0.25