Which Steel Is Used in Rails

Aug 15, 2025 Leave a message

The steel rail, also know as rail track, railroad rail, is used to guide the train wheels far forwarding, by withstanding the enormous stress by the wheel when a train passes by, and transferring to the tie sleepers as well. The rail shall provide smooth and continuous rolling surface with least resistance. Generally speaking, the heavier the rails and the rest of the track work, the heavier and higher speed for the train these railroad tracks can carry. At electrified railway or automatic block sections, the railroad rail can also be used as the railroad track circuit.

 

GNEE RAIL supplies diverse rail specifications including heavy rails (75kg/m, 60kg/m, 50kg/m, 43kg/m, 38kg/m), light rails (12kg/m, 15kg/m, 33kg/m, 30kg/m, etc.), and crane rails (QU70, QU80, QU100, QU120), manufactured from premium steel grades such as Q235B, 55Q, U71MnG, and U75VG. We offer product customization services including Precision Bending, Special Drilling, Protective Coating, and Custom Cutting. Additionally, we provide complementary railway fastening components such as rail pads, elastic rail clips, screw spikes, dog spikes, fishplates (joint bars), bolt-nut , and other rail fasteners.

 

Q235B Mechanical property Chemical composition(%)
Yield strength Tensile strength Elongation Hardness C Si Mn S P
MPa kg/mm² MPa kg/mm² min HB
235 24 375-460 38-47 26%   0.12-0.22 0.35 0.30-0.70 0.045 0.045

 

55Q Mechanical property Chemical composition(%)
Yield strength Tensile strength Elongation Hardness C Si Mn S P
MPa kg/mm² MPa kg/mm² min HBW  
    685 69   197 0.50-0.60 0.15-0.35 0.60-0.90 0.04 0.04

 

Chemical Components %
Mark C S1 Mn P S
U71Mn 0.65-0.77 0.15-0.35 1.0-1.5 <0.040 <0.040

 

Chemical Components %
Mark C S1 Mn P S V
U75v 0.71-0.80 0.50-0.70 0.75-1.05 ≤0.025 ≤0.025 0.04-0.12

 

steel rail

 

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
Crance 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