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GB/T 26080-2024: Cold roll-forming rectangle steel tube for tower cranes
Status: Valid GB/T 26080: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 26080-2024 | English | 279 |
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Cold roll-forming rectangle steel tube for tower cranes
| Valid |
GB/T 26080-2024
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| GB/T 26080-2010 | English | 439 |
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Roll-forming rectangle steel tube for tower crane
| Obsolete |
GB/T 26080-2010
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PDF similar to GB/T 26080-2024
Basic data | Standard ID | GB/T 26080-2024 (GB/T26080-2024) | | Description (Translated English) | Cold roll-forming rectangle steel tube for tower cranes | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H44 | | Classification of International Standard | 77.140.70 | | Word Count Estimation | 14,175 | | Date of Issue | 2024-04-25 | | Date of Implementation | 2024-11-01 | | Older Standard (superseded by this standard) | GB/T 26080-2010 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 26080-2024: Cold roll-forming rectangle steel tube for tower cranes---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 77:140:70
CCSH44
National Standards of People's Republic of China
Replace GB/T 26080-2010
Cold-bent rectangular tube for tower crane
Released on 2024-04-25
2024-11-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
Foreword
This document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents"
Drafting:
This document replaces GB/T 26080-2010 "Cold-bent rectangular tubes for tower cranes": Compared with GB/T 26080-2010, except for structural adjustments and
In addition to editorial changes, the main technical changes are as follows:
a) The classification and code have been changed (see Chapter 4, Chapter 3 of the:2010 edition);
b) Added specifications (see Table 1);
c) The overall dimensions and allowable deviations have been changed (see 6:2, 5:2 of the:2010 edition);
d) The weld quality requirements have been changed (see 7:5, 6:5 of the:2010 edition);
e) The weld surface range and specimen size of steel pipes for weld flattening test have been changed (see Appendix A, Appendix A of the:2010 edition):
Please note that some of the contents of this document may involve patents: The issuing organization of this document does not assume the responsibility for identifying patents:
This document was proposed by the China Iron and Steel Association:
This document is under the jurisdiction of the National Technical Committee on Steel Standardization (SAC/TC183):
This document was drafted by: Wuhan Iron and Steel Jiangbei Group Cold-Formed Steel Co:, Ltd:, Shanxi Dingrong Cold-Formed Steel Co:, Ltd:, Hunan Valin Lian
Yuan Steel Co:, Ltd:, Tangshan Youfa New Building Equipment Co:, Ltd:, Metallurgical Industry Information Standards Research Institute, Hubei Jianghan Construction Engineering Machinery
Ltd:
The main drafters of this document are: Ruan Jiangang, Song Yuguang, Zhu Shaowen, Yan Lixin, Wang Yujie, Fan Tiezheng, Wen Zhaohui, Liu Baoshi, Zhu Chengsong,
Niu Yun, Qi Jianghua, Zhao Fuliang, Liu Zhe, Xu Haochi, Deng Yong:
This document was first published in:2010 and this is the first revision:
Cold-bent rectangular tube for tower crane
1 Scope
This document specifies the classification and code, ordering content, size, shape, weight and allowable deviation, technical requirements,
Test methods, inspection rules, packaging, marking and quality certificates:
This document is applicable to the production of hot-rolled steel strips or steel plates that can be deformed by cold working in continuous roll cold bending forming and high-frequency welding process:
Cold-bent hollow rectangular tube (hereinafter referred to as "steel tube") used for tower crane components:
2 Normative references
The contents of the following documents constitute the essential clauses of this document through normative references in this document:
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document:
GB/T 228:1 Tensile test of metallic materials Part 1: Room temperature test method
GB/T 229 Charpy pendulum impact test method for metallic materials
GB/T 700 Carbon structural steel
GB/T 709-2019 Dimensions, shapes, weights and tolerances of hot-rolled steel plates and strips
GB/T 1591 Low alloy high strength structural steel
GB/T 2101 General provisions for acceptance, packaging, marking and quality certification of steel
GB/T 2975 Sampling location and specimen preparation for mechanical property tests of steel and steel products
GB/T 4171 Weathering structural steel
GB/T 4336 Determination of multi-element content of carbon steel and medium and low alloy steel Spark discharge atomic emission spectrometry (conventional method)
GB/T 6725-2017 General technical requirements for cold-formed steel
GB/T 20066 Sampling and sample preparation methods for determination of chemical composition of steel and iron
JB/T 9218-2015 Nondestructive testing penetrant testing method
YB/T 081 Rounding off of numerical values in metallurgical technical standards and determination of test values
3 Terms and definitions
There are no terms or definitions that require definition in this document:
4 Classification and code
Steel pipes are classified according to the cross-sectional shape of the product:
a) The four corners of the steel pipe are all arc-shaped cold-bent rectangular pipes, including square steel pipes and rectangular steel pipes: The code for square steel pipes is:
F; The code for rectangular steel pipe is: J;
b) Cold-bent rectangular tubes with one sharp corner and the other three rounded corners, including square sharp corner steel tubes and rectangular sharp corner steel tubes
Steel pipe, the code for square sharp-angle steel pipe is: JF; the code for rectangular sharp-angle steel pipe is: JJ:
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