Steel Railway Tracks

Railway tracks are mainly used on railways and work with switches to allow trains to run without turning. They are usually composed of two parallel rails, which are fixed on sleepers with ballast under them. They are fastened by rail supports, fasteners, rail clamps, rail clamps, spring bars, rail spikes and other railway accessories.

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Description

Technical Parameters

System Components

Component	Function	Material/Type
Rails	Load-bearing surface for wheels	60kg/m (mainline), U71Mn steel
Sleepers	Support rails & maintain gauge	Prestressed concrete/B70 hardwood
Fasteners	Secure rail to sleepers	Elastic clip (e.g., Pandrol e-clip)
Ballast	Distribute load & provide drainage	Granite (28-50mm gradation)
Subgrade	Foundation layer	Compacted to 95% Proctor density

Steel Railway tracks

Track Types

Type	Application	Key Features
Ballasted	Conventional lines	300mm ballast depth, 2% drainage slope
Slab	High-speed/urban transit	200mm concrete base, ±0.3mm alignment precision
Direct Fixation	Bridges/tunnels	Elastic pads (15-25kN/mm stiffness)
Girder	Maglev systems	Precast concrete beams (Fc≥50MPa)