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SAE-AISI D4 Steel vs. Grade VDSiCr Steel

Both SAE-AISI D4 steel and grade VDSiCr steel are iron alloys. They have 85% of their average alloy composition in common. There are 23 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 SAE-AISI D4 steel and the bottom bar is grade VDSiCr steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 74
80
Tensile Strength: Ultimate (UTS), MPa 760 to 2060
1950

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Melting Completion (Liquidus), °C 1430
1440
Melting Onset (Solidus), °C 1380
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 31
46
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.2
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 5.0
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
2.2
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 3.3
1.5
Embodied Energy, MJ/kg 49
20
Embodied Water, L/kg 100
48

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27 to 75
70
Strength to Weight: Bending, points 24 to 47
45
Thermal Diffusivity, mm2/s 8.3
12
Thermal Shock Resistance, points 23 to 63
58

Alloy Composition

Carbon (C), % 2.1 to 2.4
0.5 to 0.6
Chromium (Cr), % 11 to 13
0.5 to 0.8
Copper (Cu), % 0 to 0.25
0 to 0.060
Iron (Fe), % 80.6 to 86.3
96.6 to 97.8
Manganese (Mn), % 0 to 0.6
0.5 to 0.9
Molybdenum (Mo), % 0.7 to 1.2
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0 to 0.6
1.2 to 1.6
Sulfur (S), % 0 to 0.030
0 to 0.020
Vanadium (V), % 0 to 1.0
0