EN8 is a medium carbon steel that Special Steels supplies as a hollow bar (EN8). This is typically used when mild steel does not provide sufficient surface hardening potential. One can manufacture axles, driveshafts, crankshafts, connecting rods, high tensile bolts, studs, propeller shaft joints, rifle barrels, and induction hardened pins from EN8 because it is more cost-effective than alloy steels.
EN8 is a medium carbon steel that can be machined, welded, and suitable for surface hardening treatments like induction and flame hardening. EN8 contains between 0.36% and 0.44% carbon. It can be machined and welded because the carbon content is low enough but has a high enough carbon content to allow surface hardening. It is more affordable than alloy steel while providing the same benefits.
We cut the quantity of EN8 to the tolerance required for precision engineering and manufacturing.
We also offer machine preparation and deliveries.
American: AISI 1038
British: BS970 Part 1 1983, 080M40 (EN8)
German: W. Stoff No 1.1186
Carbon steel – 40 ton tensile black axle steel
A 6% allowance should always be made for removal of surface defects during machining
Machinability good (not recommended for case hardening)
Weldability good (carbon content low enough)
Heat treatment only to limited ruling sections/can be surface hardened (induction hardening)