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EN 1.1151 (C22E) Non-Alloy Steel

EN 1.1151 steel is a carbon (non-alloy) steel formulated for primary forming into wrought products. 1.1151 is the EN numeric designation for this material. C22E is the EN chemical designation.

The properties of EN 1.1151 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 1.1151 steel to: wrought carbon or non-alloy 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

Brinell Hardness

130 to 150

Elastic (Young's, Tensile) Modulus

190 GPa 27 x 106 psi

Elongation at Break

21 to 26 %

Fatigue Strength

180 to 240 MPa 26 to 34 x 103 psi

Poisson's Ratio

0.29

Shear Modulus

73 GPa 11 x 106 psi

Shear Strength

300 to 330 MPa 43 to 47 x 103 psi

Tensile Strength: Ultimate (UTS)

460 to 520 MPa 67 to 75 x 103 psi

Tensile Strength: Yield (Proof)

240 to 340 MPa 35 to 49 x 103 psi

Thermal Properties

Latent Heat of Fusion

250 J/g

Maximum Temperature: Mechanical

400 °C 750 °F

Melting Completion (Liquidus)

1460 °C 2660 °F

Melting Onset (Solidus)

1420 °C 2590 °F

Specific Heat Capacity

470 J/kg-K 0.11 BTU/lb-°F

Thermal Conductivity

50 W/m-K 29 BTU/h-ft-°F

Thermal Expansion

12 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

7.1 % IACS

Electrical Conductivity: Equal Weight (Specific)

8.2 % IACS

Otherwise Unclassified Properties

Base Metal Price

2.1 % 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

47 L/kg 5.6 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

98 to 100 MJ/m3

Resilience: Unit (Modulus of Resilience)

160 to 310 kJ/m3

Stiffness to Weight: Axial

13 points

Stiffness to Weight: Bending

24 points

Strength to Weight: Axial

16 to 18 points

Strength to Weight: Bending

17 to 18 points

Thermal Diffusivity

13 mm2/s

Thermal Shock Resistance

15 to 16 points

Alloy Composition

Iron (Fe) 97.7 to 99.43
Manganese (Mn) 0.4 to 0.7
Carbon (C) 0.17 to 0.24
Silicon (Si) 0 to 0.4
Chromium (Cr) 0 to 0.4
Nickel (Ni) 0 to 0.4
Molybdenum (Mo) 0 to 0.1
Phosphorus (P) 0 to 0.035
Sulfur (S) 0 to 0.035

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

Followup Questions

Similar Alloys

Further Reading

EN 10297-1: Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 1: Non-alloy and alloy steel tubes

Carbon Steel Handbook, D. Gandy, 2007

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

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