Railway-track elements and method of manufacturing them

Details Railway-track elements and method of manufacturing them Railway-track elements and method of manufacturing them

1994-07-08

1996-01-09

Yee, Deborah

Metal treatment

Stock

Ferrous

148902, 148581, 148584, C22C 3824, C21D 904

Patent

active

054825768

ABSTRACT:
A railway-track element is disclosed not only for normal track but also for rail points. The track element is formed of vacuum-treated steel containing at least 0.53 to 0.62% C, 0.65 to 1.1% Mn, 0.8 to 1.3% Cr, 0.05 to 0.11% Mo, 0.05 to 0.11% V and .ltoreq.0.02% P, the balance being iron plus the usual production-related impurities. The track element is in the form of a rail made of rolled pearlitic steel. If the track element is to be used for points, the starting material is a length of rolled rail with a martensitic structure produced by heat treatment at least in the rail head area.

REFERENCES:
patent: 4575397 (1986-03-01), Heller
patent: 4767475 (1988-08-01), Fukuda et al.

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