C-55

C-55

C-55 Grade Steel Strips & Sheets

C-55 is a medium carbon steel grade commonly supplied in the as rolled condition. It can be flame or induction hardened to produce a high surface hardness with excellent wear resistance for a carbon steel grade. C-55 bar is available in full lengths or can be cut to your requirements. C-55 flame cut steel plates can be supplied cut to your required sizes and normalized. Flame cut plates can be supplied Lumsden ground or precision ground.

Applications

C-55 is used commonly for many general engineering applications. Typical applications include, shafts, axes, knives, bushes, crankshafts, screws, sickles, wood working drills and hammers, Disc wisher and Plain wishers.

Annealing

Heat the steel slowly to 680-710°C, soak well. Cool slowly in the furnace.

Hardening

Heat slowly to 820-840°C and allow it to be heated through. Quench in oil, brine or water.

Tempering

Temper the C-55 steel component immediately after quenching whilst still hand warm. Re-heat to the tempering temperature then soak for one hour per 25 millimetre of total thickness (2 hours minimum) Cool in air. For most applications tempering of C-55 will be between 550-660°C.

Heat Treatment

Heat treatment temperatures, including rate of heating, cooling and soaking times will vary due to factors such as the shape and size of each C-55 steel component. Other considerations during the heat treatment process include the type of furnace, quenching medium and work piece transfer facilities. Please consult your heat treatment provider for full guidance on heat treatment of C-55 carbon steel.