Nkk Corporation

Burlington Northern Railroad Company

Tetsunari Ide

Jun Furukawa

Masahiro Ueda

Kozo Fukuda

Yuzuru Kataoka

Hideyuki Yamanaka

Tomoo Horita

Atsushi Ito

Takao Gino

John A Hovland

Gordon O Besch

A high-strength, damage-resistant rail characterized by essentially consists of 0.60 to 0.85 wt. % of C, 0.1 to 1.0 wt. % of Si, 0.5 to 1.5 wt. % of Mn, not more than 0.035 wt. % of P, not more than 0.040 wt. % of S, and not more than 0.05 wt. % of Al, a balance being Fe and indispensable impurity. The rail comprises corner and head side portions having a Brinell hardness H.sub.B of 341 to 405 and a head top portion having a hardness which is not more than 0.9 of the Brinell hardness of the corner and head side portions.

High-strength, damage-resistant rail

Growing community of inventors

Hiroshima, Japan

Tetsunari Ide