GB/T 11263-2024 PDF English
Search result: GB/T 11263-2024_English: PDF (GB/T11263-2024)
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Name of Chinese Standard | Status |
| GB/T 11263-2024 | English | 740 |
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Hot rolled H and cut T section steel
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| GB/T 11263-2017 | English | 145 |
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Hot rolled H and cut T section steel
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| GB/T 11263-2010 | English | 70 |
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Hot-rolled H and cut T section steel
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| GB/T 11263-2005 | English | 999 |
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The hot-rolled H and cut T section [including MODIFICATION 1]
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| GB/T 11263-1998 | English | 679 |
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The hot-rolled H and cut T section steel
| Obsolete |
| GB/T 11263-1989 | English | RFQ |
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Dimensions, shape, weight and tolerances for hot-rolled H-section steel
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GB/T 11263-2024: PDF in English (GBT 11263-2024) GB/T 11263-2024
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77.140.70
CCS H 44
Replacing GB/T 11263-2017
Hot rolled H and cut T section steel
ISSUED ON: OCTOBER 26, 2024
IMPLEMENTED ON: MAY 01, 2025
Issued by: State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative references ... 5
3 Terms and definitions ... 6
4 Order content ... 6
5 Classification and code ... 6
6 Size, shape, weight and allowable deviation... 7
6.1 Size and representation ... 7
6.2 Size, shape and allowable deviation ... 9
6.3 Weight and allowable deviation ... 11
6.4 Specifications ... 11
6.5 Method of customizing H section steel specifications ... 12
7 Technical requirements ... 14
7.1 Delivery state ... 14
7.2 Steel designation and chemical composition ... 14
7.3 Mechanical properties and process properties ... 15
7.4 Surface quality ... 15
8 Test methods ... 15
9 Inspection rules ... 16
9.1 Inspection and acceptance ... 16
9.2 Batch rules ... 16
9.3 Sampling rules ... 16
9.4 Re-inspection and determination ... 16
10 Packaging, marking and quality certificate ... 16
Appendix A (Normative) Nominal cross-sectional dimensions, cross-sectional area,
theoretical weight and cross-sectional properties of H section steel ... 18
Appendix B (Normative) Nominal cross-sectional dimensions, cross-sectional area,
theoretical weight and cross-sectional properties of HK section steel ... 34
Appendix C (Normative) Nominal cross-sectional dimensions, cross-sectional area,
theoretical weight and cross-sectional properties of cut T section steel ... 47
Appendix D (Informative) Formulas for calculating cross-sectional area, theoretical
weight and cross-sectional properties of H section steel ... 50
Hot rolled H and cut T section steel
1 Scope
This document specifies the order content, classification, code, size, shape, weight and
allowable deviation, technical requirements, test methods, inspection rules, packaging,
marking and quality certificate of hot rolled H section steel and T section steel cut from
hot rolled H section steel.
This document applies to hot rolled H section steel (hereinafter referred to as H section
steel) and T section steel cut from hot rolled H section steel (hereinafter referred to as
T section steel).
2 Normative references
The following documents are referred to in the text in such a way that some or all of
their content constitutes requirements of this document. For dated references, only the
version corresponding to that date is applicable to this document; for undated references,
the latest version (including all amendments) is applicable to this document.
GB/T 222, Permissible tolerances for chemical composition of steel products
GB/T 228.1, Metallic materials - Tensile testing - Part 1: Method of test at room
temperature
GB/T 229, Metallic materials - Charpy pendulum impact test method
GB/T 232, Metallic materials - Bend test
GB/T 700, Carbon structural steels
GB/T 712, Structural steel for ship and ocean engineering
GB/T 714, Structural steel for bridge
GB/T 1591, High strength low alloy structural steels
GB/T 2101, General requirement of acceptance, packaging, marking and
certification for section steel
GB/T 2975, Steel and steel products - Location and preparation of test pieces for
mechanical testing
GB/T 4171, Atmospheric corrosion resisting structural steel
GB/T 4336, Carbon and low-alloy steel - Determination of multi-element contents
- Spark discharge atomic emission spectrometric method (routine method)
GB/T 19879, Steel plate for building structure
GB/T 20066, Steel and iron - Sampling and preparation of samples for the
determination of chemical composition
GB/T 33968, Hot rolled steel sections with improved weldability
GB/T 34103, Hot rolled H section steel for ocean engineering structure
GB/T 41749, General requirements for surface condition of hot-rolled sections
YB/T 4261, Hot rolled fire-resistant H section steel
YB/T 4620, Hot rolled anti-seismic H steel section
YB/T 4831, Through-thickness characteristics of hot-rolled H-section steel
3 Terms and definitions
No terms and definitions need to be defined in this document.
4 Order content
The contract or order for goods ordered under this document shall contain at least the
following:
a) product name and type;
b) designation;
c) reference to this document;
d) specifications;
e) delivery length;
f) weight and quantity;
g) other special requirements proposed by the buyer, such as special specification
requirements, special surface quality requirements, etc.
5 Classification and code
5.1 H section steel is divided into two categories, and their codes are as follows:
For example: H596×199×10×15.
HK steel: HK and the value of height H × the value of width B × the value of web
thickness t1 × the value of flange thickness t2.
For example: HK1008×310×26×40.
6.4.2 T section steel: T and the value of height h × the value of width B × the value of
web thickness t1 × the value of flange thickness t2.
For example: T207×405×18×28.
6.5 Method of customizing H section steel specifications
6.5.1 For H section steel of the same model, the web clear height h0, flange extension
width b0 and fillet radius r are the same. While keeping h0, b0 and r unchanged, the
flange thickness t2 and web thickness t1 can be adjusted for customized design. The
specific specifications shall be determined by negotiation between the supplier and the
buyer.
6.5.2 The steps and examples for customizing the specifications of H section steel are
as follows:
a) Select the initial specification H × B × t1 × t2; calculate the web clear height h0
and flange extension width b0 according to Formula (2) and Formula (3)
respectively;
b) The design of flange thickness t2’ and web thickness t1’ shall ensure
1.0< t2'/t1'< 2.0;
c) Calculate the designed height H’ and width B’ according to Formula (4) and
Formula (5) respectively;
d) Form new specifications H’ × B’ × t1’ × t2’.
Where:
h0 – web clear height, in millimeters (mm);
H – height, in millimeters (mm);
t2 – flange thickness, in millimeters (mm).
supplier and the buyer and with indication in the contract, the product can also be
supplied in accordance with other designations and chemical compositions.
7.2.2 The allowable deviation of the chemical composition of the finished products of
H section steel and T section steel shall comply with the provisions of GB/T 222.
7.3 Mechanical properties and process properties
The mechanical properties and process properties of H section steel and T section steel
shall conform to the relevant provisions of GB/T 700, GB/T 712, GB/T 714, GB/T 1591,
GB/T 4171, GB/T 19879, GB/T 33968, GB/T 34103, YB/T 4261, YB/T 4620, YB/T
4831 or other standards. After negotiation between the supplier and the buyer and
indication in the contract, the goods can also be supplied according to other mechanical
properties and process performance indicators.
7.4 Surface quality
7.4.1 There shall be no burrs larger than 5 mm on the cut surface of H section steel and
T section steel.
7.4.2 The surface quality of H section steel and T section steel shall comply with the
relevant provisions of GB/T 41749. After negotiation between the supplier and the
buyer and with indication in the contract, goods can also be supplied according to other
surface quality requirements.
7.4.3 The defect repair welding of H section steel and T section steel shall comply with
the relevant provisions of GB/T 41749.
8 Test methods
The inspection items, sampling quantity and test methods for each batch of H section
steel and T section steel shall comply with the requirements of Table 3.
9 Inspection rules
9.1 Inspection and acceptance
9.1.1 The inspection and acceptance of H section steel and T section steel shall be
carried out by the supplier’s quality inspection department.
9.1.2 The supplier shall ensure that the steel delivered complies with the provisions of
this document or the contract. The buyer has the right to inspect and accept any
inspection item specified in this document or the contract.
9.2 Batch rules
The batching of H section steel and T section steel shall be carried out in accordance
with the relevant standards or contract provisions.
9.3 Sampling rules
The sampling locations and methods for tensile, bending and impact tests of H section
steel shall comply with the provisions of GB/T 2975, and the sampling of T section
steel shall comply with the provisions for H section steel.
9.4 Re-inspection and determination
The re-inspection and determination rules for H section steel shall comply with the
provisions of GB/T 2101.
10 Packaging, marking and quality certificate
10.1 H section steel and T section steel shall be marked with the manufacturer’s name
or registered trademark by rolling, spraying or sticking, and the marking shall be clear
and unambiguous.
10.2 H section steel and T section steel may be delivered in bundles or individually,
where H section steel and T section steel delivered in bundles shall comply with the
requirements of Table 4. H section steel with a length greater than 24 000 mm or a
single weight greater than 10 t may be delivered without bundles.
10.3 Except as specified in Table 4, the packaging, marking and quality certificate of H
section steel and T section steel shall comply with the provisions of GB/T 2101.
......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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