Oil quench hardening and tempering and hard drawn steel wire...

Details Oil quench hardening and tempering and hard drawn steel wire... Oil quench hardening and tempering and hard drawn steel wire...

C - Chemistry, Metallurgy

21

D

148/34

C21D 9/02 (2006.01) C21D 8/06 (2006.01)

Patent

CA 1309323

ABSTRACT OF THE DISCLOSURE There is provided an oil tempered and hard drawn steel wire for sprins which comprises having a phosphate coating on the surface thereof if necessary, high strength, and a shaped cross section free of twist in the longitudinal direction. It is produced by oil tempering, descaling, and phosphate treatment if necessary, and cold working. Having a shaped cross section free of twist in the longitudinal direction, the steel wire can be formed into high quality springs in which the individual cross sections of the wire are arranged regularly in the same direction. The steel wire is particularly suitable for making springs.

571178

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