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Your Position: Home > Steel Rails > Railroad Rail | Section Specifications Of Train Track Rails

Railroad Rail | Section Specifications Of Train Track Rails

Author: Liang

May. 13, 2024

103 0 0

Railroad Rail | Section Specifications Of Train Track Rails

Railroad rails are the fundamental component of train tracks, forming the rails upon which trains run. These rails are typically created from high-quality steel through advanced production processes, giving them the strength to bear heavy loads and provide a smooth, stable surface for trains.

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Rail Section Size

Modern rails are designed with an "I-beam" cross-section, where parameters such as rail height, head width, base width, and web thickness are key. These sections and weights differentiate various rail types.

Typical Railroad Rail Section Specification

Item Unit CHN 75kg Rail CHN 60kg Rail CHN 50kg Rail CHN 45kg Rail
Weight per meter kg 74.414 60.645 51.514 44.653
Rail height mm 192 176 152 140
Width of base mm 150 150 132 111
Height of head mm 55.3 48.5 42 42

Typical Chemical Composition of Railroad Rail (%)

Rail Grade C Si Mn P S Al V Tensile Strength (Mpa) Elongation (%)
U71Mn 0.65~0.76 0.15~0.35 1.10~1.40 ≤0.025 ≤0.04 — 0.03 880 8
U71MnSi 0.65~0.75 0.85~1.15 1.10~1.15 ≤0.04 ≤0.04 ≤0.04 ≤0.04 880 8

Note: EN-European Standard; JIE1101-Japanese Industry Standard 1101-1993

Rail Size Tolerance and Flatness Requirements

The accuracy and flatness of rail sections are critical for quality. Deviations in size and poor straightness make it hard to lay top-quality track. Table 3-1 outlines global standards for rail size tolerances, while Table 3-2 specifies rail straightness standards.

Size Tolerance of Typical High-Speed Rails

Item BJ & SH UIC860 JISE1011 TGV EN(A) EN(B) GB2585 TB/T2344
Rail height ±0.5 ±0.6 ±1.0 ±0.5 ±0.5 ±0.6 +0.8, -0.5 ±0.5
Width of head ±0.5 ±0.5 ±0.8, -0.5 ±0.5 ±0.5 ±0.5 ±0.5 —

Flatness of High-Speed Rails

Part Item Beijing & Shanghai UIC860 JISE1101 TGV EN(A) EN(B) GB2585 TB/T2344
Rail end Vertical flatness (up) 0.4/2, 0.3/1 0.7/1.5 1.7/1.5 0.4/2, 0.3/1 0.5/1.5 0.5/1.5 0.8/1 0.5/1
Rail end Vertical flatness (down) 0.2/200 0.2/2 0.2/2 0.2/1.5 0.2/1 0.2/1

AGICO Hot Sale Railroad Rails

Approved by China’s Railway Ministry, Anyang General International Co., Ltd (AGICO) offers a comprehensive range of railroad tracks meeting International standards. Popular products include GB and QU crane rails, ASCE rails, 115RE rails, UIC60 rails, UIC54 rails, and DIN536 rails.

  • Specifications of American Standard Rail (AREMA/ASCE Rails)
Rail Type Head (mm) Height (mm) Base (mm) Web (mm) Nominal weight (kg/m) Material Length
175LBS Rail 109.86 152.4 152.4 38.1 86.8 900A/1100 12—25
115RE Rail 69.06 168.28 139.7 15.88 56.9 900A/1100 12—25
  • Specification of British Rail (BS11:1985)
Size Head (mm) Height (mm) Base (mm) Web (mm) Nominal weight (kg/m) Material Length
BS113A Rail 69.85 158.75 139.7 20 56.3 900A 8-25
BS100A Rail 69.85 152.4 133.35 15.08 50.18 900A 8-25
  • Specification of European Standard Rail (EN 13674-1-2003)
Size Head (mm) Height (mm) Base (mm) Web (mm) Nominal weight (kg/m) Material Length (m)
60E1 Rail 72 172 150 16.5 60.21 R260/R350HT 12-25
55E1 Rail 62 155 134 19 56.03 R260/R350HT 12-25
  • DIN Crane Rail
Size Head (mm) Height (mm) Base (mm) Web (mm) Nominal weight (kg/m) Material Length (m)
A45 45 55 125 24 22.1 700/900A/1100 10-12
A55 55 65 150 31 31.8 700/900A/1100 10-12
  • Specification of Indian Standard Rail (ISCR)
Size Head (mm) Height (mm) Base (mm) Web (mm) Nominal weight (kg/m) Material Length (m)
ISCR 50 Rail 51.29 90 20 9.85 50 Q/U71MN 9-12
ISCR60 Rail 61.3 105 25 14 60 Q/U71Mn 9-12
  • Specifications of Japanese Standard Rail (JIS E1103-93/JIS E1101-93)
Size Head (mm) Height (mm) Base (mm) Web (mm) Nominal weight (kg/m) Material Length (m)
JIS 22kg Rail 50.8 93.6 93.6 10.7 22.35 Q 9-10
JIS 30kg Rail 60.3 107.95 107.95 12.3 30.15 Q 9-10
  • Specification of Australian Standard Rail (AS 1085)
Size Head (mm) Height (mm) Base (mm) Web (mm) Nominal weight (kg/m) Material Length (m)
31kg 117.5 108 63.5 11.5 31.5 900A/1100 6-25
41 kg 136.5 127 63.5 13.1 40.7 900A/1100 6-25
  • Specification of South African Standard Rail (ISCOR)
Size Head (mm) Height (mm) Base (mm) Web (mm) Nominal weight (kg/m)
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