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Ductile Cast Iron vs. EN 1.8527 Steel

Both ductile cast iron and EN 1.8527 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 1.8527 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 310
270
Elastic (Young's, Tensile) Modulus, GPa 170 to 180
190
Elongation at Break, % 2.1 to 20
16
Poisson's Ratio 0.28 to 0.31
0.29
Shear Modulus, GPa 64 to 70
74
Shear Strength, MPa 420 to 800
550
Tensile Strength: Ultimate (UTS), MPa 460 to 920
900
Tensile Strength: Yield (Proof), MPa 310 to 670
800

Thermal Properties

Latent Heat of Fusion, J/g 270
260
Maximum Temperature: Mechanical, °C 290
490
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
41
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8 to 9.4
9.0

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
4.0
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
66

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17 to 80
140
Resilience: Unit (Modulus of Resilience), kJ/m3 280 to 1330
1670
Stiffness to Weight: Axial, points 12 to 14
14
Stiffness to Weight: Bending, points 24 to 26
24
Strength to Weight: Axial, points 17 to 35
32
Strength to Weight: Bending, points 18 to 29
26
Thermal Diffusivity, mm2/s 8.9 to 10
11
Thermal Shock Resistance, points 17 to 35
26

Alloy Composition

Carbon (C), % 3.0 to 3.5
0.040 to 0.12
Chromium (Cr), % 0
3.7 to 4.3
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 93.7 to 95.5
93.2 to 95.1
Manganese (Mn), % 0
0.85 to 1.2
Molybdenum (Mo), % 0
0.4 to 0.6
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 0.035