• High Peak Steels Ltd, Brookfield Ind Est, Peakdale Road, Glossop, Derbyshire, SK13 6LQ

EN8 steel - photo showing different shapes of EN8 steel bars

EN8 (080A42) Engineering steel

EN8 is a medium carbon steel which is used in applications where better properties than mild steel are required, at a lower cost than an alloy, making this an excellent alternative to alloy.

This is an unalloyed carbon steel with reasonable tensile strength. By heat treating this engineering steel provides a good surface hardness. It can be flame or induction hardened and is a readily machinable material.

When heat treated it offers moderate wear resistance. It shares the same good mechanical properties of EN16 which is more resistant to shear loading and frictional wearing. Speak to High Peak Steels technical team for more details or to discuss a project.

C45 / C40 are European grades, offering similar characteristics and suitable for similar applications, as EN8 (080M40).

Steel stock range

High Peak Steels stock EN8 (080A42) Bright in round bar, square bar and hexagon.

Associated standards

UK Standard EN8 | European Grades C40 | Werkstoff 1.0511 | SAE/AISI 1040

Or call 01457 866911 for more details

EN8 (080A42) Bright

ProductMetric sizes
MaxImperial sizes
codes-round25mm dia200mm dia1/4" dia8" dia
codes-flat28mm x 7mm Key Steel50mm x 28mm Key Steel5/16" x 1/4" Key Steel2" x 1 1/2" Key Steel
codes-square24mm SQ Key Steel50mm SQ Key Steel3/16" SQ Key Steel2" SQ Key Steel

EN8 (080A42) Chemical Composition


EN8 (080A42) Typical applications

  • Automotive parts
  • Connecting rods
  • Studs, bolts
  • Axles, spindles
  • General engineering components