Carbon Steels

Carbon & Carbon Manganese Case-Hardening Steels. Chosen for applications where it is necessary for the components to have a hard wear resisting surface with a tough supporting core, but high tensile strength is not specified. After machining it is necessary to carburize and harden the parts when figures of 59/62 HRC are attainable. Typical specifications – BS 970: 045A10, 045M10, 080M15, 210M15, 214M15. European Standard – C15E, C16E, 10S20, 15S14. American AISI/SAE 1010, 1016, 1117, 1118.

Medium Carbon & Carbon Manganese Steels

Offering greater strength than mild steel, they respond to heat treatment and include types suitable for induction and flame hardening. Depending on analysis and ruling section, tensile strengths in the range 850-1000 N/mm2 may be attained although 700-850 N/mm2 is more common. Free cutting grades are available. Applications include gears, racks, pinion shafts, rollers, bolts, studs, nuts etc. Specifications include BS 970 080M30, 080M40, 080A42, 080A42, 080M50, 070M55, 150M36. European Standard – EN 10083-1 C4OE, C45E, C50E, C55E, 28Mn6. American AISI/ VAE 1030, 1040, 1042, 1335.