The size is different, the specifications of heavy rail is different.

Edit:Zongxiang Heavy Industry--Zed Date:2017-12-28 08:49:53

Heavy rail is different with light rail, it’s the track of heavy vehicle and it’s not the weight of the track, but they also have some relationships, because the track of heavy vehicle is thick and heavy, the specifications of the rail are required higher.

Heavy rail is the rail that the weight more than 30kg per meter. It can be divided into general rail and crane rail. General rail refer to the rail used in laying railway line, special line, bend and tunnel. The specification of general rail has 38kg, 43kg, 50kg, 60kg. The specification of general rail has QU70, QU80, QU100, QU120.

Scope of heavy rail: regional rail, intercity railroad, commuter rail, subway.

Heavy rail can be divided into common manganese steel rail, copper carbon steel rail, high ssilicon steel rail with copper steel, copper rail, manganese rail, silicon rail etc.

Heavy rail should bear the pressure of locomotive, impulse load and friction, so it required to sufficient strength, hardness and tenacity. In order to adapt to railway heavy load and high speed, in addition to increasing the single weight of heavy rail, the comprehensive performance should be improved. The quality requirements is stringent, in addition to its chemical composition, the mechanical properties, falling weight test and acid leaching group are also required. The general range of chemical composition of rail: ?[C]=0.65%?0.75%??[Mn]=0.8%?1.0%??[Si]=0.20%?0.25%.

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