What is Rail Track Components?

Jan 12, 2026 Leave a message

Rail track components are the essential parts that form a railway's running surface, primarily consisting of Rails, Sleepers (ties), Ballast, and Fasteners, all supported by the underlying Subgrade, working together to guide trains safely and smoothly by distributing loads from wheels to the ground.

 

rail fastening

 

Main Types of Rail Track Components

 

Steel Rail

 

Steel Rail is the most important component of rail track, and its function is to guide the train wheels moving forward by withstanding the enormous pressure pushed by the wheels. Steel rail shall provide smooth, stable and continuous rolling surface for the passing train wheels. Steel rails can be classified into different types including railway rails, crane rails, coal mining rails and different standard uch as American, BS, UIC, DIN, JIS, Australian rails.

 

heavy rail

 

GB Standards Steel Rails

 

Classification Height(mm) Head (mm) Bottom (mm) Thick(mm) Weight (kg/m)
Light Rail 8 KG/M 65 25 54 7 8.42
9 KG/M 63.5 32.1 63.5 5.9 8.94
12 KG/M 69.85 38.1 69.85 7.54 12.2
15 KG/M 79.37 42.86 79.37 8.33 15.2
18 KG/M 80 40 80 10 18.06
22 KG/M 93.66 50.8 93.66 10.72 22.3
24 KG/M 107 51 90 10.9 24.46
30 KG/M 107.95 60.33 107.95 12.3 30.1
Heavy Rail 38 KG/M 134 68 114 13 38.733
43 KG/M 140 70 114 14.5 44.653
45 KG/M 145 67 126 14.5 45.546
50 KG/M 152 70 132 15.5 51.514
60 KG/M 176 73 150 16.5 60.64
Crane Rail QU 70 120 70 120 28 52.8
QU 80 130 80 130 32 63.69
QU 100 150 100 150 38 88.96
QU 120 170 120 170 44 118.1

 

Britain standard

 

Size A B C t Weight (kg/m)
50O 52.39 100.01 100.01 10.32 24.833
60A 57.15 114.3 109.54 11.11 30.618
60R 57.15 114.3 109.54 11.11 29.822
70A 60.32 123.82 111.12 12.3 34.807
75A 61.91 128.59 114.3 12.7 37.455
75R 61.91 128.59 122.24 13.1 37.041
80A 63.5 133.35 117.47 13.1 39.761
80R 63.5 133.35 127 13.49 39.674
90A 66.67 142.88 127 13.98 45.099
100A 69.85 152.4 133.35 15.08 50.182
113A 69.85 158.75 139.7 20 56.398

 

Japanese industrial standard steel rail

 

Size A B C t Weight (kg/m)
JIS 15kg 42.86 79.37 79.37 8.33 15.2
JIS 22kg 50.8 93.66 93.66 10.72 22.3
JIS 30A 60.33 107.95 107.95 12.3 30.1
JIS 37A 62.71 122.24 122.24 13.49 37.2
JIS 50N 65 153 127 15 50.4
CR 73 100 135 140 32 73.3
CR 100 120 150 155 39 100.2

 

South African standard steel rail

 

Size A B C t Weight (kg/m)
15kg 41.28 76.2 76.2 7.54 14.905
22kg 50.01 95.25 95.25 9.92 22.542
30kg 57.15 109.54 109.54 11.5 30.25
40kg 63.5 127 127 14 40.31
48kg 68 150 127 14 47.6
57kg 71.2 165 140 16 57.4

 

UIC standard steel rail

 

Size A B C t Weight (kg/m)
UIC54 70 159 140 16 54.43
UIC60 74.3 172 150 16.5 60.21

 

Rail Joint


Rail joint, also named fishplate, is a mental bar used to connect the end of two rails together. Because of the particularity of signal steel rail, so there must be joint section on the steel rails. It is necessary to connect the two rails with rail joint, which can provide continuous rolling surface for the trains. Rail joint can also ensure rails steadily bear the force caused by train when train passes by. And rail joints reserve expanding space for high heat climates. Rail joint is a rail component which can ensure the vehicles' movement with continuous rails. The rail joint can be classified into common rail joint, compromise rail joint, bulge rail joint, insulated rail joint and glued insulated rail joint, etc

 

rail fish plate

 

GB (Chinese) Standard Rail Joint

 

  • Size: 43kg, 50kg, 60kg, 75kg
  • Material: Chinese steel grade 55#
  • Standard: TB/T2345-2008
  • Elongation A: ≥9%
  • Brinell Hardness: HBW 227-388

 

BS Standard Rail Joint

 

  • Size: BS75R, BS80A, BS90A, BS100A, BS113A
  • Material: Chinese steel grade 40#
  • Standard: BS47-1
  • Tensile Strength Rm: 550-650 Mpa
  • Elongation A: ≥18%

 

UIC Standard Rail Joint

 

  • Size: U79 – UIC54, U85 – UIC60
  • Material: Chinese steel grade 40#
  • Standard: UIC864-4, UIC864-8
  • Tensile Strength Rm: 550-650 Mpa
  • Elongation A: ≥18%

 

DIN Standard Rail Joint

 

  • Standard: DIN 5902-1995
  • Material: Chinese steel grade Q235
  • size: 1. FL10- FL20: FL10, FL14, FL18, FL20
  • 2. FL30–FL41: FL30, FL33, FL41, FL49
  • Elongation A: FL10- FL20≥21% FL30–FL41≥23%

 

Fish Bolt

 

Fish bolt is always used with rail joints, fish bolt gets through the holes of rail joint and rail, and play a bolton role in the connection. If the fish bolt is used with the matching rail joint, the effect would be perfect.

 

rail fasteners

 

Railroad Spike

 

Railroad spike is one of the most important rail components. It is similar to a large nail with an offset head. The railroad spike is used for fasten the rail and tie, and it is usually with tie plate. There are mainly two kinds of rail spikes: dog spike, screw spike. Dog spike can just used in wooden sleepers, and the screw spike is used in concrete sleepers.

 

rail screw

 

Since 2008, GNEE RAIL has been supplying steel rails of different grades for more than 18 years, steel rails from GNEE is highly recommened in China and abroad.Wtih cutting edge equipment, GNEE produces high quality steel rails that meet with requirements of most countries. Standard rail, head hardened rail, heavy rail,light rail,crane rail and other types are all available here.As a professional rail fastener supplier, GNEE RAILcan provide different standard steel rail such as American, BS, UIC, DIN, JIS, Australian and South Africa which used in railway lines, cranes and coal mining.

 

Click here to obtain the detailed product catalog of GNEE RAIL.