With all that explanation the fact will remain that AREMA is third class
Hakuna swala la third class leta source inayo sema hivyo. Mimi bado mwaga source sibanduki. AREMA ni aina ya railway track(taruma)
Steel rail, also called rail track, is a vital part of railway track system. Steel rail undertake the task of guiding train wheel and transferring load from locomotive to railway sleeper. As an essential component of railway track structure, the quality and material of steel rail directly impact the safety and service life of railway track. For choosing high-quality steel rail, it is necessary to learn two questions: what is the standard for processing steel rail? And
how steel rail are made? Today, we’ll discuss the first one---what is the standard for processing steel rail?
Steel rail standard in various countries
As for the standard of steel rail, to meet different requirement of different countries, there are many international standards for steel rail on the market. The common standards include AREMA, UIC, JIS, BS, GB, Russian standard, etc.
AREMA standard
AREMA standard was formulated by the American Railway Engineering and Maintenance of Way Association.
American standard railway products especially steel rail generally adopt the AREMA standard. Common types include
AREMA 115, 119, 132, 133, 136, 147. And so on.
BS standard is short of British standard. Obviously, BS standard is mainly used for British railway track. Ordinary types of BS standard steel rail include BS 70, 75, 80, 90, 100, etc.
European standard
European standard is one of the most advanced and strict standard for steel rail in the world. prEN13674-1:2002(E)and prEN13674-2:2003(E) are two part of European standard, the latter mainly set rules for railway switch. Besides, European standard is designed for the high-speed railway.
GB standard
GB standard refers the standard is used for the Chinese railway. GB standard covers many types of railway track, such as hot-rolled rail, heat treated rail and rail for switch, all these steel rail can be applied in the mph 200 or 350 passenger railway, mph 160 or 200 railway, etc. common GB standard steel rail include GB 43, 50, 60, 75 and etc.