From the automotive trade to wider general engineering applications, EN8 is a popular steel in industry. Chemical Composition (weight %). C. Si. Mn. P. S min. EN8 steel stockholders and suppliers, delivering to the whole of the UK. EN8 is widely used for applications which require better properties than mild steel but. en8 steel also known as m40, AISI a medium strength carbon steel. Specification BS , Chemical Composition, BS / Nearest.

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EN8 Carbon Steel, M40 BS Specification – Otai Special Steel

What is EN8 Carbon Steel? EN8 carbon steel is a common medium carbon and medium tensile steel, with improved strength over mild steel, through-hardening medium carbon steel.

EN8 carbon steel is also readily machinable in any condition. EN8 steels are generally used in the as supplied untreated condition.


1045 | EN8 | S45C | 080M40 Steel | CK45 carbon structural steel

But EN8 steels can be further surface-hardened by induction processes, producing components with enhanced wear resistance. Steel EN8 materials in its heat treated forms possesses good homogenous metallurgical structures, giving consistent machining properties.

Good heat treatment results on sections larger than 65mm may still be achievable, but it should chenical noted that a fall-off in mechanical properties would be apparent approaching the centre of the bar. It is therefore recommended that larger sizes of EN8 steel materials are supplied in the untreated condition, and that any heat treatment is carried out after initial stock removal.

This should achieve better mechanical properties towards the core.

EN8 steel grade belongs to the standard of BSwhich is a standard for wrought steel for mechanical and allied engineering purpose. And the most equivalent is grade M40 steel in BS After forging cool en8 steel slowly, preferably in a furnace.


EN8 steel is usually supplied untreated but also be able to be supplied to order in the normalized or finally heat treated, which is adequate for a wide range of applications. EN8 steel material is suitable for the all general engineering applications requiring a higher chekical than mild steel such as:.

EN8 mild steel – technical information

We will have some EN8 carbon steel promotion at the end of almost every month. Just send emails with detailed requests for EN8 carbon steels price.

Steel Grade required EN8 M August 12th, 0 Comments. May 24th, 0 Comments. January 3rd, 0 Comments. December 10th, 0 Comments. November 29th, 0 Comments.