The development of steel rail

Each country railway rail in the early 20th century can weigh no more than 50kg / m, mostly used current national 60kg / m above the steel rail. The most important use of the US rail weight 77kg / m, the Soviet Union was 75kg / m. Improve the use of heavy rail is an economical rail service life and effective means. For greater than 30 million tons of shipping, the maximum driving speed greater than 120km / h for heavy rail, the rail by the 50kg / m change of 60kg / m, although steel consumption increased by 18%, but the traffic increase by 50% life can be extended by 70%. States under specific conditions using different methods to improve the wear and pressure ulcer steel, fatigue fracture properties. The Soviet Union, the United States, Japan and other countries mainly on the basis of the original carbon-manganese steel rail end and a total length of rail surface hardening and hardening heat treatment methods to tap potential. Full length hardened rail service life increased by 2 to 3 times as much carbon rails. Some Western European countries have adopted the alloying. Such as the Federal Republic of Germany with a Cr-V rails (C0.55 ~ 0.75%, Mn0.8 ~ 1.3%, Cr0.8 ~ 1.3%, V≤0.3%), the UK rail Mn-Cr (C0.15%, Mn1. 25%, Cr1.15%). From 1965, China began to produce low alloy rail with copper (Cu0.2 ~ 0.4%) of the rail, manganese (1.1 to 1.5%) of the rail and the like. Manganese rails abrasion better life increased by 2 times as much carbon rails.

We not only supply all kinds of heavy steel crane rail, also provide rail parts and accessories including joint connection parts and intermediate coupling parts. For example Timber Sleepers, spikes, rail pads, tie plates, gauge rods - with single or double jaw, spring, Fish Plates, joint bars, bolts, spring, washer.

Any question pls feel free to contact us:
Email: admin@satrise.com
Tel: +86-17093757606
Web: www.srrail.com