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Ductile Cast Iron vs. EN 1.7366 Steel

Both ductile cast iron and EN 1.7366 steel are iron alloys. They have a moderately high 94% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ductile cast iron and the bottom bar is EN 1.7366 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 310
140 to 210
Elastic (Young's, Tensile) Modulus, GPa 170 to 180
190
Elongation at Break, % 2.1 to 20
17 to 19
Poisson's Ratio 0.28 to 0.31
0.29
Shear Modulus, GPa 64 to 70
74
Shear Strength, MPa 420 to 800
290 to 440
Tensile Strength: Ultimate (UTS), MPa 460 to 920
460 to 710
Tensile Strength: Yield (Proof), MPa 310 to 670
230 to 480

Thermal Properties

Latent Heat of Fusion, J/g 270
260
Maximum Temperature: Mechanical, °C 290
510
Melting Completion (Liquidus), °C 1160
1460
Melting Onset (Solidus), °C 1120
1420
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 31 to 36
40
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
8.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8 to 9.4
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
4.3
Density, g/cm3 7.1 to 7.5
7.8
Embodied Carbon, kg CO2/kg material 1.5
1.7
Embodied Energy, MJ/kg 21
23
Embodied Water, L/kg 43
69

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17 to 80
74 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 280 to 1330
140 to 600
Stiffness to Weight: Axial, points 12 to 14
14
Stiffness to Weight: Bending, points 24 to 26
25
Strength to Weight: Axial, points 17 to 35
16 to 25
Strength to Weight: Bending, points 18 to 29
17 to 23
Thermal Diffusivity, mm2/s 8.9 to 10
11
Thermal Shock Resistance, points 17 to 35
13 to 20

Alloy Composition

Carbon (C), % 3.0 to 3.5
0 to 0.18
Chromium (Cr), % 0
4.0 to 6.0
Iron (Fe), % 93.7 to 95.5
91.9 to 95.3
Manganese (Mn), % 0
0.3 to 0.8
Molybdenum (Mo), % 0
0.45 to 0.65
Phosphorus (P), % 0 to 0.080
0 to 0.025
Silicon (Si), % 1.5 to 2.8
0 to 0.4
Sulfur (S), % 0
0 to 0.015

Comparable Variants