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EN 1.1118 (G24Mn6) Cast Non-Alloy Steel

EN 1.1118 cast steel is a carbon steel formulated for casting. 1.1118 is the EN numeric designation for this material. G24Mn6 is the EN chemical designation. It can have a moderately low ductility and a fairly high tensile strength among cast carbon steels.

The properties of EN 1.1118 cast steel include three common variations. This page shows summary ranges across all of them. For more specific values, follow the links immediately below. The graph bars on the material properties cards further below compare EN 1.1118 cast steel to: cast carbon steels (top), all iron alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.

Mechanical Properties

Elastic (Young's, Tensile) Modulus

190 GPa 27 x 106 psi

Elongation at Break

14 to 21 %

Fatigue Strength

320 to 400 MPa 46 to 58 x 103 psi

Poisson's Ratio

0.29

Shear Modulus

73 GPa 11 x 106 psi

Tensile Strength: Ultimate (UTS)

700 to 750 MPa 100 to 110 x 103 psi

Tensile Strength: Yield (Proof)

460 to 630 MPa 66 to 91 x 103 psi

Thermal Properties

Latent Heat of Fusion

250 J/g

Maximum Temperature: Mechanical

400 °C 750 °F

Melting Completion (Liquidus)

1460 °C 2650 °F

Melting Onset (Solidus)

1420 °C 2580 °F

Specific Heat Capacity

470 J/kg-K 0.11 BTU/lb-°F

Thermal Conductivity

51 W/m-K 30 BTU/h-ft-°F

Thermal Expansion

12 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

7.2 % IACS

Electrical Conductivity: Equal Weight (Specific)

8.3 % IACS

Otherwise Unclassified Properties

Base Metal Price

1.9 % relative

Density

7.8 g/cm3 490 lb/ft3

Embodied Carbon

1.4 kg CO2/kg material

Embodied Energy

19 MJ/kg 8.1 x 103 BTU/lb

Embodied Water

48 L/kg 5.7 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

97 to 130 MJ/m3

Resilience: Unit (Modulus of Resilience)

550 to 1050 kJ/m3

Stiffness to Weight: Axial

13 points

Stiffness to Weight: Bending

24 points

Strength to Weight: Axial

25 to 27 points

Strength to Weight: Bending

22 to 23 points

Thermal Diffusivity

14 mm2/s

Thermal Shock Resistance

22 to 24 points

Alloy Composition

Iron (Fe) 97.3 to 98.3
Manganese (Mn) 1.5 to 1.8
Silicon (Si) 0 to 0.6
Carbon (C) 0.2 to 0.25
Phosphorus (P) 0 to 0.020
Sulfur (S) 0 to 0.015

All values are % weight. Ranges represent what is permitted under applicable standards.

Followup Questions

Similar Alloys

Further Reading

EN 10293: Steel castings - Steel castings for general engineering uses

Carbon Steel Handbook, D. Gandy, 2007

ASM Specialty Handbook: Carbon and Alloy Steels, J. R. Davis (editor), 1996

Ferrous Materials: Steel and Cast Iron, Hans Berns and Werner Theisen, 2008

CRC Materials Science and Engineering Handbook, 4th ed., James F. Shackelford et al. (editors), 2015

Steels: Processing, Structure, and Performance, 2nd ed., George Krauss, 2015