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ASTM Grade HD Steel vs. Grade VDSiCr Steel

Both ASTM grade HD steel and grade VDSiCr steel are iron alloys. They have 67% 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 ASTM grade HD steel and the bottom bar is grade VDSiCr steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 80
80
Tensile Strength: Ultimate (UTS), MPa 590
1950

Thermal Properties

Latent Heat of Fusion, J/g 310
270
Maximum Temperature: Mechanical, °C 1100
410
Melting Completion (Liquidus), °C 1410
1440
Melting Onset (Solidus), °C 1370
1400
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 16
46
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 17
2.2
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 3.1
1.5
Embodied Energy, MJ/kg 45
20
Embodied Water, L/kg 180
48

Common Calculations

Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 21
70
Strength to Weight: Bending, points 20
45
Thermal Diffusivity, mm2/s 4.3
12
Thermal Shock Resistance, points 19
58

Alloy Composition

Carbon (C), % 0 to 0.5
0.5 to 0.6
Chromium (Cr), % 26 to 30
0.5 to 0.8
Copper (Cu), % 0
0 to 0.060
Iron (Fe), % 58.4 to 70
96.6 to 97.8
Manganese (Mn), % 0 to 1.5
0.5 to 0.9
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 4.0 to 7.0
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 2.0
1.2 to 1.6
Sulfur (S), % 0 to 0.040
0 to 0.020