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SAE-AISI D2 Steel vs. Ductile Cast Iron

Both SAE-AISI D2 steel and ductile cast iron are iron alloys. They have 86% of their average alloy composition in common. There are 28 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 SAE-AISI D2 steel and the bottom bar is ductile cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
170 to 180
Elongation at Break, % 5.0 to 16
2.1 to 20
Poisson's Ratio 0.28
0.28 to 0.31
Shear Modulus, GPa 75
64 to 70
Shear Strength, MPa 460 to 1160
420 to 800
Tensile Strength: Ultimate (UTS), MPa 760 to 2000
460 to 920
Tensile Strength: Yield (Proof), MPa 470 to 1510
310 to 670

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Melting Completion (Liquidus), °C 1440
1160
Melting Onset (Solidus), °C 1390
1120
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 31
31 to 36
Thermal Expansion, µm/m-K 11
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.3
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 5.1
8.8 to 9.4

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
1.9
Density, g/cm3 7.7
7.1 to 7.5
Embodied Carbon, kg CO2/kg material 3.4
1.5
Embodied Energy, MJ/kg 50
21
Embodied Water, L/kg 100
43

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92 to 100
17 to 80
Resilience: Unit (Modulus of Resilience), kJ/m3 570 to 5940
280 to 1330
Stiffness to Weight: Axial, points 14
12 to 14
Stiffness to Weight: Bending, points 25
24 to 26
Strength to Weight: Axial, points 27 to 72
17 to 35
Strength to Weight: Bending, points 24 to 46
18 to 29
Thermal Diffusivity, mm2/s 8.3
8.9 to 10
Thermal Shock Resistance, points 25 to 67
17 to 35

Alloy Composition

Carbon (C), % 1.4 to 1.6
3.0 to 3.5
Chromium (Cr), % 11 to 13
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 81.3 to 86.9
93.7 to 95.5
Manganese (Mn), % 0 to 0.6
0
Molybdenum (Mo), % 0.7 to 1.2
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0 to 0.080
Silicon (Si), % 0 to 0.6
1.5 to 2.8
Sulfur (S), % 0 to 0.030
0
Vanadium (V), % 0 to 1.1
0

Comparable Variants