# EN 1.0426 (P280GH) Non-Alloy Steel

EN 1.0426 steel is a carbon (non-alloy) steel formulated for primary forming into wrought products. Cited properties are appropriate for the normalized condition. 1.0426 is the EN numeric designation for this material. P280GH is the EN chemical designation.

It has a moderately high ductility among the wrought carbon or non-alloy steels in the database.

The graph bars on the material properties cards below compare EN 1.0426 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

150

Elastic (Young's, Tensile) Modulus

190 *GPa* 27 *x 10 ^{6} psi*

Elongation at Break

25 *%*

Fatigue Strength

210 *MPa* 31 *x 10 ^{3} psi*

Impact Strength: V-Notched Charpy

42 *J* 31 *ft-lb*

Poisson's Ratio

0.29

Shear Modulus

73 *GPa* 11 *x 10 ^{6} psi*

Shear Strength

330 *MPa* 48 *x 10 ^{3} psi*

Tensile Strength: Ultimate (UTS)

520 *MPa* 75 *x 10 ^{3} psi*

Tensile Strength: Yield (Proof)

290 *MPa* 42 *x 10 ^{3} 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

51 *W/m-K* 30 *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

1.9 *% relative*

Density

7.8 *g/cm ^{3}* 490

*lb/ft*

^{3}Embodied Carbon

1.4 *kg CO _{2}/kg material*

Embodied Energy

19 *MJ/kg* 8.0 *x 10 ^{3} BTU/lb*

Embodied Water

47 *L/kg* 5.6 *gal/lb*

## Common Calculations

Resilience: Ultimate (Unit Rupture Work)

110 *MJ/m ^{3}*

Resilience: Unit (Modulus of Resilience)

230 *kJ/m ^{3}*

Stiffness to Weight: Axial

13 *points*

Stiffness to Weight: Bending

24 *points*

Strength to Weight: Axial

18 *points*

Strength to Weight: Bending

18 *points*

Thermal Diffusivity

14 *mm ^{2}/s*

Thermal Shock Resistance

16 *points*

## Alloy Composition

Fe | 97.9 to 99.02 | |

Mn | 0.9 to 1.5 | |

Si | 0 to 0.4 | |

C | 0.080 to 0.2 | |

P | 0 to 0.025 | |

S | 0 to 0.015 |

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

## Followup Questions

## Similar Alloys

## Further Reading

EN 10222-2: Steel forgings for pressure purposes - Part 2: Ferritic and martensitic steels with specified elevated temperature properties

Creep-Resistant Steels, Fujio Abe et al. (editors), 2008

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