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GB/T 11264-2025: Hot-rolled light rails
Status: Valid
GB/T 11264: Evolution and historical versions
| Std ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status |
| GB/T 11264-2025 | English | 599 |
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5 days [Need to translate]
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Hot-rolled light rails
| Valid |
| GB/T 11264-2012 | English | 329 |
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3 days [Need to translate]
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Hot-rolled light rails
| Valid |
| GB/T 11264-1989 | English | 519 |
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Light rails
| Obsolete |
Standard similar to GB/T 11264-2025 GB 13788 | GB/T 11263 | GB/T 6728 | Basic data | Standard ID | GB/T 11264-2025 (GB/T11264-2025) | | Description (Translated English) | Hot-rolled light rails | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H44 | | Classification of International Standard | 77.140.70 | | Word Count Estimation | 30,353 | | Date of Issue | 2025-08-29 | | Date of Implementation | 2026-03-01 | | Older Standard (superseded by this standard) | GB/T 11264-2012, GB/T 11265-1989, GB/T 11266-1989 | | Issuing agency(ies) | State Administration for Market Regulation; Standardization Administration of China | GB/T 11264-2025: Hot-rolled light rails---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT11264-2025
ICS 77.140.70
CCSH44
National Standards of the People's Republic of China
Replace GB/T 11264-2012, GB/T 11265-1989, GB/T 11266-1989
Hot-rolled light rail
Published on 2025-08-29
Implemented on 2026-03-01
State Administration for Market Regulation
The State Administration for Standardization issued a statement.
Foreword
This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents".
Drafting.
This document supersedes GB/T 11264-2012 "Hot-rolled light rail", GB/T 11265-1989 "Joint plates for light rail", and GB/T 11266-
1989 "Light Rail Pads". This document is based on GB/T 11264-2012, and integrates GB/T 11265-1989 and GB/T 11266-1989.
Compared with GB/T 11264-2012, the main technical changes, apart from structural adjustments and editorial modifications, are as follows.
---The steel smelting method has been changed (see 5.1, 5.2 in the.2012 edition);
---The grades of hot-rolled light rail, light rail pads, and light rail joint plates have been changed (see 6.1, 5.1 in the.2012 edition);
---The different requirements for chemical composition and mechanical properties of different types of hot-rolled light rails have been removed (Tables 9 and 10 in the.2012 edition);
---The permissible length deviation of hot-rolled light rails (see Table 7, Table 6 in the.2012 edition) and the requirements for end curvature (see 6.4.1.4.1) have been revised.
Table 7 (2012 edition)
---Added dimensional inspection requirements for the "flatness of the rail bearing surface" of light rail pads (see Table 9);
---The chemical composition test methods for hot-rolled light rails, light rail pads, and light rail joint plates have been revised (see 7.4,.2012 edition).
Table 11);
---Added batching rules for light rail base plates and light rail joint clamps (see 8.2).
Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents.
This document was proposed by the China Iron and Steel Association.
This document is under the jurisdiction of the National Steel Standardization Technical Committee (SAC/TC183).
This document was drafted by. Hebei Iron & Steel Co., Ltd. Tangshan Branch, Hebei Yongyang Special Steel Group Co., Ltd., and Anshan Zizhu Light Special Steel.
Limited Liability Company, Metallurgical Industry Information and Standards Research Institute.
The main drafters of this document are. Gao Yan, Wu Yunzhe, Xie Jianjun, Wu Jiajun, Xu Haochi, Ping Yu, Han Xiaoli, Hong Ze, Liu Baoshi, and Wang Yujie.
The document replaced by this document has been released in the following versions.
---GB/T 11264, first published in 1989, first revised in.2012;
---GB/T 11265, first published in 1989;
---GB/T 11266, first published in 1989.
Hot-rolled light rail
1.Scope
This document specifies the ordering details, manufacturing process, technical requirements, inspection methods, and acceptance procedures for hot-rolled light rails, light rail pads, and joint clamps.
Rules and packaging, markings and quality certificates.
This document applies to hot-rolled light rails (hereinafter referred to as "light rails") used in mining, forestry, and other rail applications, and hot-rolled pads for light rails (hereinafter referred to as "pads").
"plate" and hot-rolled joint clamp for light rail (hereinafter referred to as "joint clamp").
2 Normative references
The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.
For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.
This document.
GB/T 223.5 Determination of Acid-Soluble Silicon and Total Silicon Content in Iron and Steel - Reduced Molybdate Spectrophotometric Method
GB/T 223.12 Chemical Analysis Methods for Iron and Steel Alloys - Sodium Carbonate Separation-Diphenylcarbazide Spectrophotometric Determination of Chromium
GB/T 223.53 Chemical Analysis Methods for Iron and Steel Alloys—Determination of Copper Content by Flame Atomic Absorption Spectrophotometry
GB/T 223.54 Determination of Nickel Content in Iron and Steel and Alloys by Flame Atomic Absorption Spectrometry
GB/T 223.59 Determination of phosphorus content in iron and steel and their alloys - Bismuth-phosphomolybdenum blue spectrophotometric method and antimony-phosphomolybdenum blue spectrophotometric method
GB/T 223.63 Determination of Manganese Content in Iron and Steel and Alloys - Sodium (Potassium) Periodate Spectrophotometric Method
GB/T 223.68 Chemical Analysis Methods for Iron and Steel Alloys - Determination of Sulfur Content by Potassium Iodate Titration after Combustion in Tubular Furnace
GB/T 223.69 Determination of carbon content in iron and steel and their alloys - Volumetric method of gas volumetric analysis after combustion in a tubular furnace
GB/T 228.1 Metallic materials – Tensile testing – Part 1.Test method at room temperature
GB/T 231.1 Metallic materials – Brinell hardness test – Part 1.Test method
GB/T 700-2006 Carbon Structural Steel
GB/T 2101 General Provisions for Acceptance, Packaging, Marking and Quality Certificate of Section Steel
GB/T 2975 Sampling Location and Specimen Preparation for Mechanical Property Testing of Steel and Steel Products
GB/T 4336 Determination of Multi-Element Content in Carbon Steel and Medium-Low Alloy Steels by Spark Discharge Atomic Emission Spectrometry (Conventional Method)
GB/T 20066 Sampling and Sample Preparation Methods for the Determination of Chemical Composition of Steel and Iron
YB/T 081 Metallurgical Technical Standards. Numerical Rounding and Judgment of Test Values
3.Terms and Definitions
This document does not contain any terms or definitions that need to be defined.
4.Order details
Contracts for orders placed in accordance with this document shall include at least the following technical contents.
a) This document number;
b) Product Name (Light Rail, Base Plate, and Joint Clamp);
c) Brand;
d) Model number;
e) Delivery length;
f) Weight;
g) Other requirements.
5.Manufacturing process
5.1 Smelting Method
Steel should be smelted in an oxygen converter or electric furnace, and steel for light rail should be refined outside the furnace.
5.2 Delivery Status
Light rails, base plates, and joint clamps are all delivered in hot-rolled condition.
6.Technical Requirements
6.1 Grade and Chemical Composition
6.1.1 Light Rail
6.1.1.1 The grade and chemical composition (smelting analysis) of the light rail shall conform to the provisions of Table 1.
Table 1
Brand
Chemical composition (mass fraction)/%
C Si Mn PS
50Q 0.40~0.60 0.15~0.35 ≥0.40 ≤0.040 ≤0.040
55Q 0.50~0.60 0.15~0.35 0.60~0.90 ≤0.040 ≤0.040
6.1.1.2 When Cr, Ni, and Cu are residual elements, Cu ≤ 0.25%, Cr ≤ 0.25%, and Ni ≤ 0.30%. This is provided the supplier can guarantee compliance with the specifications.
In this way, the chemical analysis of these elements can be eliminated.
6.1.2 Pad
The chemical composition (smelting analysis) of the pad conforms to the requirements for Q235B and Q275B in GB/T 700-2006.
6.1.3 Joint clamp
The chemical composition (smelting analysis) of the joint clamp plate conforms to the requirements of Q235B and Q275B in GB/T 700-2006.
6.1.4 Other
The above three products, upon negotiation between the supplier and the buyer and as specified in the contract, may be supplied with other grades of steel.
6.2 Mechanical and Technological Properties
6.2.1 Light Rail
The mechanical properties of light rail should meet the requirements of Table 2.
Table 2
Grade Tensile strength Rm/MPa Brinell hardness HBW
50Q ≥569 -
55Q ≥685 ≥197
6.2.2 Pad
The pad should be subjected to a 45° (135° internal angle) cold bending test, and no cracks or breaks should appear.
6.2.3 Joint clamp
The mechanical properties of the joint clamp should conform to the specifications in Table 3.
Table 3
Grade Tensile strength Rm/MPa Elongation after fracture A/%
Q235B 370~500 ≥26
Q275B 410~540 ≥22
6.3 Surface Quality
6.3.1 Light Rail
6.3.1.1 The cross-section of the light rail should not have residual shrinkage cavities or delamination.
6.3.1.2 The surface of the light rail shall be free from defects that are harmful to its use, such as cracks, scabs, folds, bubbles, and slag inclusions. Defects with a depth not exceeding [a certain value] are permissible.
Localized scratches and dents of 0.75mm are permitted on the rail web and its adjacent upper and lower inclined surfaces outside the area where the joint clamp is installed.
A 2mm protrusion; any protrusion within the contact surface with the connector clamp should be removed.
6.3.1.3 Local defects on the surface of the light rail are allowed to be cleaned, but the cleaning depth should not exceed 1.5 mm from the actual dimensions.
6.3.1.4 The surface of the bolt hole should be flat and free from cracks, and the burr height should not exceed 2mm.
6.3.2 Pad
6.3.2.1 The surface of the pad shall be free from scabs, inclusions, folds, and cracks with a depth exceeding 1 mm; the surface in contact with the light rail shall be free from protrusions.
Defects such as burrs, protrusions, and small bumps should be removed.
6.3.2.2 The pad is allowed to have local deformation due to shearing. The end face of the pad should be perpendicular to the longitudinal axis and there should be no delamination or shrinkage cavity residue on the end face.
6.3.3 Joint clamp
6.3.3.1 The end face of the joint clamp should not have delamination or shrinkage cavities.
6.3.3.2 The surface of the joint clamp plate shall be free from cracks, folds, bubbles, and scale. Local scratches with a depth not exceeding 0.5 mm are permissible.
A pit.
6.3.3.3 The two ends of the joint clamp should be cut at right angles to its length direction, and burrs at the cut and drilled areas should be removed.
6.4 Model, dimensions, length, shape, weight and permissible deviations
6.4.1 Light Rail
6.4.1.1 Light Rail Model
The light rail models are 9kg/m, 12kg/m, 15kg/m, 18kg/m, 22kg/m, 24kg/m and 30kg/m.
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