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Grade VDSiCr Steel vs. ASTM A356 Grade 2

Both grade VDSiCr steel and ASTM A356 grade 2 are iron alloys. They have a very high 98% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is grade VDSiCr steel and the bottom bar is ASTM A356 grade 2.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 590
150
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Reduction in Area, % 48
39
Shear Modulus, GPa 80
73
Tensile Strength: Ultimate (UTS), MPa 1950
510

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 410
410
Melting Completion (Liquidus), °C 1440
1470
Melting Onset (Solidus), °C 1400
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 46
51
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
2.4
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 1.5
1.5
Embodied Energy, MJ/kg 20
20
Embodied Water, L/kg 48
47

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 70
18
Strength to Weight: Bending, points 45
18
Thermal Diffusivity, mm2/s 12
14
Thermal Shock Resistance, points 58
15

Alloy Composition

Carbon (C), % 0.5 to 0.6
0 to 0.25
Chromium (Cr), % 0.5 to 0.8
0
Copper (Cu), % 0 to 0.060
0
Iron (Fe), % 96.6 to 97.8
97.7 to 99.55
Manganese (Mn), % 0.5 to 0.9
0 to 0.7
Molybdenum (Mo), % 0
0.45 to 0.65
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 1.2 to 1.6
0 to 0.6
Sulfur (S), % 0 to 0.020
0 to 0.030