Want to learn about steel rail specifications and sizes in different countries? click here

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Steel rail is the main component of railway track.Its function is to guide the wheels of the locomotive and rolling stock forward, bear the great pressure of the wheels, and pass to the sleepers.The rail must provide a continuous, smooth, and least resistant rolling surface for the wheels.In the electrified railway or automatic block section, the rail can also be used as a track circuit.The rails are rolled from carbon killed steel smelted by open hearth furnace and oxygen converter.Its purpose is to bear the running pressure and impact load of rolling stock.

 

Classification of steel rails:

Domestic:

 

Steel rails in China can be divided into crane rail, heavy rail and light rail in terms of the approximate weight of kilograms per meter:

  • Crane rail.There are four kinds of crane rail,they are QU120,QU100,QU80,QU70.Material is generally manganese steel,like U71Mn,U75V,U78CrV,U77MnCr,U76CrRE .QU120 steel rail has the largest single weight,up to 118kg/m. Want to learn about steel rail specifications and sizes in different countries click here
  • Heavy rail.According to the types of steel used, the steel can be divided into: common manganese steel rail, common carbon steel rail containing copper, high silicon copper steel rail, copper rail, manganese rail, silicon rail, etc.With the steel grades of U74,U71Mn,U70MnSi,U71MnSiCu,U75V,U76NbRE,U70Mn,etc.There are mainly 38kg/m, 43kg/m, 50kg/m, 60kg/m and 75kg/m steel rails.Want to learn about steel rail specifications and sizes in different countries click here
  • Light rail.There are mainly9kg/m,12kg/m,15kg/m,18kg/m,22kg/m,24kg/m,30kg/m steel rails with the steel grades of 50Q,55Q,45SiMnP,50SiMnP and Q235B.

Want to learn about steel rail specifications and sizes in different countries click here

Foreign:

Each country in the world has its own standards for the production of rails, and the way of classification is not the same.

BS standard:60A,60R,70A,75A,75R,80A,80R,90A,100A,113A with the steel grades of 700 and 900A.

BS11:1985 Standard Steel Rail
Specification Size Unit Weight Grade Length
Head Width Height Bottom Width Web Thickness (kg/m) (m)
(mm) (mm) (mm) (mm)
50 O 52.39 100.01 100.01 10.32 24.833 700 6m-18m
60 A 57.15 114.3 109.54 11.11 30.618 900A 6m-18m
60 R 57.15 114.3 109.54 11.11 29.822 700 6m-18m
70 A 60.32 123.82 111.12 12.3 34.807 900A 8m-25m
75 A 61.91 128.59 114.3 12.7 37.455 900A 8m-25m
75 R 61.91 128.59 122.24 13.1 37.041 900A 8m-25m
80 A 63.5 133.35 117.47 13.1 39.761 900A 8m-25m
80 R 63.5 133.35 127 13.49 39.674 900A 8m-25m
90 A 66.67 142.88 127 13.89 45.099 900A 8m-25m
100 A 69.85 152.4 133.35 15.08 50.182 900A 8m-25m
113 A 69.85 158.75 139.7 20 56.398 900A 8m-25m

 

Indian standard:ISCR 50,ISCR60,ISCR70,ISCR80,ISCR100,ISCR120 with the steel grades of 55Q and U71Mn.

ISCR Standard Steel Rail
Specification Size Unit Weight Grade Length
Head Width Height Bottom Width Web Thickness (kg/m) (m)
(mm) (mm) (mm) (mm)
ISCR 50 51.2 90 90 20 29.8 55Q/U71Mn 9m-12m
ISCR 60 61.3 105 105 24 40 55Q/U71Mn 9m-12m
ISCR 70 70 120 120 28 52.8 U71Mn 9m-12m
ISCR 80 81.7 130 130 32 64.2 U71Mn 9m-12m
ISCR100 101.9 150 150 38 89 U71Mn 9m-12m
ISCR 120 122 170 170 44 118 U71Mn 9m-12m

 

International Railway Union :UIC 860 standard.UIC 54 steel rail and UIC 60 steel rail with the steel grades of 700,900A,900B and 1100.

Specifications of uic54 steel rail and uic60 steel rail
Size Head width Height Bottom width Waist thickness Weight Length
UIC54 70mm 159mm 140mm 16mm 54.43 kg/m 12m-25m
UIC60 74.3mm 172mm 150mm 16.5mm 60.21 kg/m 12m-25m

 

American standard :ASCE series like ASCE25,ASCE30,ASCE40,ASCE60,ASCE75,ASCE85,90RA,115RE,136RE with the steel grades of 700,900A,1100.

American Standard Steel Rail
Specification Size Unit Weight Material Length
Head Width Height Bottom Width Web Thickness (kg/m) (m)
(mm) (mm) (mm) (mm)
ASCE 25 38.1 69.85 69.85 7.54 12.4 700 6m-12m
ASCE 30 42.86 79.38 79.38 8.33 14.88 700 6m-12m
ASCE 40 47.62 88.9 88.9 9.92 19.84 700 6m-12m
ASCE 60 60.32 107.95 107.95 12.3 29.76 700 6m-12m
ASCE 75 62.71 122.24 122.24 13.49 37.2 900A/110 12m-25m
ASCE 85 65.09 131.76 131.76 14.29 42.17 900A/110 12m-25m
90RA 65.09 142.88 130.18 14.29 44.65 900A/110 12m-25m
115RE 69.09 168.28 139.7 15.88 56.9 900A/110 12m-25m
136RE 74.61 185.74 152.4 17.46 67.41 900A/110 12m-25m

 

Length of steel rails:

The standard rail length is 12.5m and 25m.The standard length rail of 25m is used for extra-heavy and heavy-duty rail, while 12.5m 25m standard length rail can be used for other types of steel rails.

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