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EN 1.0558 Cast Steel vs. Ductile Cast Iron

Both EN 1.0558 cast steel and ductile cast iron are iron alloys. They have a moderately high 95% 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 EN 1.0558 cast 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, % 18
2.1 to 20
Poisson's Ratio 0.29
0.28 to 0.31
Shear Modulus, GPa 73
64 to 70
Tensile Strength: Ultimate (UTS), MPa 640
460 to 920
Tensile Strength: Yield (Proof), MPa 340
310 to 670

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 400
290
Melting Completion (Liquidus), °C 1470
1160
Melting Onset (Solidus), °C 1430
1120
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 53
31 to 36
Thermal Expansion, µm/m-K 12
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.8
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
8.8 to 9.4

Otherwise Unclassified Properties

Base Metal Price, % relative 1.7
1.9
Density, g/cm3 7.9
7.1 to 7.5
Embodied Carbon, kg CO2/kg material 1.4
1.5
Embodied Energy, MJ/kg 18
21
Embodied Water, L/kg 45
43

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 99
17 to 80
Resilience: Unit (Modulus of Resilience), kJ/m3 300
280 to 1330
Stiffness to Weight: Axial, points 13
12 to 14
Stiffness to Weight: Bending, points 24
24 to 26
Strength to Weight: Axial, points 22
17 to 35
Strength to Weight: Bending, points 21
18 to 29
Thermal Diffusivity, mm2/s 14
8.9 to 10
Thermal Shock Resistance, points 20
17 to 35

Alloy Composition

Carbon (C), % 0
3.0 to 3.5
Iron (Fe), % 99.935 to 100
93.7 to 95.5
Phosphorus (P), % 0 to 0.035
0 to 0.080
Silicon (Si), % 0
1.5 to 2.8
Sulfur (S), % 0 to 0.030
0