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Grade VDSiCr Steel vs. ACI-ASTM CD3MWCuN Steel

Both grade VDSiCr steel and ACI-ASTM CD3MWCuN steel are iron alloys. They have 63% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is grade VDSiCr steel and the bottom bar is ACI-ASTM CD3MWCuN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 80
80
Tensile Strength: Ultimate (UTS), MPa 1950
790

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Maximum Temperature: Mechanical, °C 410
1100
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 46
16
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
22
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 1.5
4.2
Embodied Energy, MJ/kg 20
58
Embodied Water, L/kg 48
180

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 70
28
Strength to Weight: Bending, points 45
24
Thermal Diffusivity, mm2/s 12
4.2
Thermal Shock Resistance, points 58
22

Alloy Composition

Carbon (C), % 0.5 to 0.6
0 to 0.030
Chromium (Cr), % 0.5 to 0.8
24 to 26
Copper (Cu), % 0 to 0.060
0.5 to 1.0
Iron (Fe), % 96.6 to 97.8
56.6 to 65.3
Manganese (Mn), % 0.5 to 0.9
0 to 1.5
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 0
6.5 to 8.5
Nitrogen (N), % 0
0.2 to 0.3
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 1.2 to 1.6
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.025
Tungsten (W), % 0
0.5 to 1.0