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GB/T 17395-2024: Dimensions, shapes, masses and tolerances of steel tubes (English PDF)

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GB/T 17395-2024: Dimensions, shapes, masses and tolerances of steel tubes
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GB/T 17395: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] deliveryName of Chinese StandardStatus
GB/T 17395-2024English800 Add to Cart 0-9 seconds. Auto-delivery Dimensions, shapes, masses and tolerances of steel tubes Valid
GB/T 17395-2008English85 Add to Cart 0-9 seconds. Auto-delivery Dimensions, shapes, masses and tolerances of seamless steel tubes Valid
GB/T 17395-1998EnglishRFQ ASK 6 days Dimensions, shapes, masses and tolerances of seamless steel tubes Obsolete

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GB/T 17396 | GB/T 18248 | GB/T 18984 | 

GB/T 17395-2024: Dimensions, shapes, masses and tolerances of steel tubes

GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 77.140.75 CCS H 48 GB/T 17395-2024 Replacing GB/T 17395-2008, GB/T 21835-2008 Dimensions, shapes, masses and tolerances of steel tubes Issued on: SEPTEMBER 29, 2024 Implemented on: APRIL 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... 6 2 Normative references... 6 3 Terms and definitions... 6 4 Dimension specifications... 6 5 Length... 49 6 Shape... 50 7 Mass... 52 Bibliography... 53

Foreword

This document was drafted in accordance with the provisions of GB/T 1.1-2020 “Directives for standardization - Part 1.Rules for the structure and drafting of standardizing documents”. This document integrates and revises GB/T 17395-2008 “Dimensions, shapes, masses and tolerances of seamless steel tubes” and GB/T 21835-2008 “Dimensions and masses per unit length of welded steel pipes”. Compared with GB/T 17395-2008 “Dimensions, shapes, masses and tolerances of seamless steel tubes”, in addition to structural adjustments and editorial changes, this document has the following major technical changes. a) MODIFY the outer diameter and wall thickness specification table of common steel tubes, and EXPAND the outer diameter and wall thickness specification range (see Table 1 and Table 2 of this document, Table 1 of GB/T 17395-2008); b) DELETE the outer diameter series of precision steel tubes (see Table 3 of this document, Table 2 of the 2008 edition); c) MODIFY the outer diameter and wall thickness specification table of precision steel tubes, and EXPAND the outer diameter and wall thickness specification range (see Table 3 of this document, Table 2 of GB/T 17395-2008); d) MODIFY the outer diameter and wall thickness specification table of stainless steel tubes, and EXPAND the outer diameter and wall thickness specification range (see Table 4 of this document, Table 3 of GB/T 17395-2008); e) ADD the inner diameter tolerances (see 4.3.3 of this document); f) ADD the minimum wall thickness tolerances (see 4.3.5 of this document). Compared with GB/T 21835-2008 “Dimensions and masses per unit length of welded steel pipes”, in addition to structural adjustments and editorial changes, this document has the following major technical changes. a) MODIFY the wall thickness series of common steel tubes (see Table 1 and Table 2 of this document, Table 1 of GB/T 21835-2008); b) MODIFY the outer diameter and wall thickness specification table of common steel tubes, and EXPAND the outer diameter and wall thickness specification range (see Table 1 and Table 2 of this document, Table 1 of GB/T 21835-2008); c) DELETE the outer diameter series of precision steel tubes (see Table 3 of this document, Table 2 of the 2008 edition); d) MODIFY the outer diameter and wall thickness specification table of precision steel tubes, and EXPAND the outer diameter and wall thickness specification range (see Table 3 of this document, Table 2 of GB/T 21835-2008); e) MODIFY the outer diameter and wall thickness specification table of stainless steel tubes, and EXPAND the outer diameter and wall thickness specification range (see Table 4 of this document, Table 3 of GB/T 21835-2008); f) ADD the outer diameter and wall thickness tolerances (see 4.3 of this document); g) ADD the length requirements (see Clause5 of this document); h) ADD the shape requirements (see Clause 6 of this document); i) MODIFY the calculation method of the theoretical weight per unit length of steel tubes (see 7.1 of this document, 5.1 and 5.2 of GB/T 21835-2008); j) ADD the mass tolerance requirements (see 7.2 of this document). Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. The issuing authority of this document shall not be held responsible for identifying any or all such patent rights. This document was proposed by China Iron and Steel Association. This document shall be under the jurisdiction of National Technical Committee on Steel of Standardization Administration of China (SAC/TC 183). Drafting organizations of this document. China Metallurgical Information and Standardization Institute, Hengyang Valin Steel Tube Co., Ltd., Jiangsu Changbao Pulaisen Steel Tube Co., Ltd., Zhejiang Lunbao Pipe Co., Ltd., Jiangsu Yaxin Precision Technology Co., Ltd., Shanxi Taigang Stainless Steel Tube Co., Ltd., Zhejiang Pacific Seamless Steel Tube Co., Ltd., Chengde Jianlong Special Steel Co., Ltd., Jiangsu Tianhuai Pipe Co., Ltd., Zhejiang Yongshang Special Material Co., Ltd., Panyu Chu Kong Steel Pipe (Zhuhai) Co., Ltd., Huadi Steel Group Co., Ltd., Zhejiang Kingland Pipeline & Technologies Co., Ltd., Jiangyin Hongteng Machinery Co., Ltd., Jiangyin South Stainless Steel Pipes Co., Ltd., Inner Mongolia Bao Gang United Steel Co., Ltd., Shandong Special Equipment Inspection Institute Group Co., Ltd., Jiangsu Chengde Steel Pipe Co., Ltd., Jiangsu Youfa Steel Pipe Co., Ltd., Shandong Juncheng Green Energy Materials Technology Co., Ltd., Handan Zheng Da Pipe Group Co., Ltd., Zhejiang Dewei Stainless Steel Piping Co., Ltd., Zhejiang Compressed Fluid Technology Co., Ltd., Ningbo Huijie Steel Pipe Co., Ltd., Zhejiang Dakai Special Steel Technology Co., Ltd., Hubei Hongruima Steel Tube Co., Ltd. Main drafters of this document. Xue Jianzhong, Niu Liang, Dai Minming, Wang Chaoxian, Mao Minfeng, Li Yi, Huang Dabing, Wang Xueyuan, Li Jinrong, Fang Dewei, Huang Kejian, Zhang Jiang, Yang Weifang, Xue Jun, Xue Jianjun, Wang Zenghai, Song Mingda, Chen Zhong, Wang Lihong, Guo Jianjun, Zhang Hongshun, Shen Li, Qi Zhenning, Shu Jie, Chen Xinkai, Liu Jianing, Li Qi, Zhu Xuehui, Liu Yang, Zheng Dailun, Guo Lei, Dou Zhichao, Leng Yonglei, Lu Chao, Deng Zhijian, Li Wei, Jiang Zenghe, Zhu Lixin, Xi Jinfa, Qian Hangyu, Mi Yongfeng, Shen Xiaomin, Yu Chao, Zhang Hua, Wang Yuanzhi, Shi Weiqing, Zhu Shiqi, Shen Chenxia, Fu Qiang, Feng Guangti, Hou Nan, Li Gang, Ren Xiaofeng, Zhang Ting, Xiong Junbo, Yang Yu, Wang Chao, Han Wei, Zhang Xiaofeng, Zhao Xiaojie, Zhai Yongli, Zhou Huimin. The previous released versions replaced by this document are as follows. - GB/T 17395, first published in 1998, first revised in 2008, this is the second revision; - GB/T 21835, first published in 2008, this is the first revision. Dimensions, shapes, masses and tolerances of steel tubes

1 Scope

This document specifies the dimensions, shapes, masses and tolerances of steel tubes. This document applies to the selection of dimension, shape, mass and tolerance when formulating standards for circular steel tubes for various purposes.

2 Normative references

The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 30062 Terminology of steel pipes and tubes

3 Terms and definitions

For the purpose of this document, the terms and definitions defined in GB/T 30062 apply.

4 Dimension specifications

4.1 Outer diameter series Except for the nominal outer diameter (D) of precision steel tubes, the nominal outer diameters of other steel tubes are divided into three series. Series 1, Series 2 and Series 3.Series 1 is a general series and is recommended; Series 2 is a non-general series; Series 3 is a few special and dedicated series. 4.2 Outer diameter and wall thickness The nominal outer diameter and nominal wall thickness (S) of common steel tubes are shown in Table 1 (S ≤ 65 mm) and Table 2 (S > 65 mm); the nominal outer diameter and nominal wall thickness of precision steel tubes are shown in Table 3; the nominal outer diameter and nominal wall thickness of stainless steel tubes are shown in Table 4. 4.3 Outer diameter and wall thickness tolerances 4.3.1 Selection of outer diameter and wall thickness tolerances 4.3.1.1 The selection of outer diameter and wall thickness tolerances should take into account the purpose of the steel tube and the process equipment for manufacturing the steel tube. 4.3.1.2 The outer diameter and wall thickness tolerances adopted by the product standard should be standardized. Non-standardized or other tolerances can be selected according to user requirements and the particularity of the product. 4.3.2 Outer diameter tolerances 4.3.2.1 The recommended standardized outer diameter tolerances are shown in Table 5. Table 5 -- Standardized outer diameter tolerances 4.3.2.2 The recommended non-standardized outer diameter tolerances are shown in Table 6. 4.3.2.3 The outer diameter tolerances of special-purpose steel tubes and cold-rolled (drawn) steel tubes can be absolute deviation. 4.3.3 Inner diameter tolerances The recommended standardized inner diameter tolerances are shown in Table 7. Deviation grade Non-standardized outer diameter tolerance 4.3.4 Wall thickness tolerances 4.3.4.1 The recommended standardized wall thickness tolerances are shown in Table 8. 4.3.4.2 The recommended non-standardized wall thickness tolerances are shown in 4.3.4.3 The wall thickness tolerances of special-purpose steel tubes and cold-rolled (drawn) steel tubes can be absolute deviation. 4.3.5 Minimum wall thickness tolerances The recommended standardized minimum wall thickness tolerances are shown in Table 10.

5 Length

5.1 Random length The recommended random length range of steel tubes is 3000 mm ~ 12000 mm. 5.2 Specific length and multiple length The specific length and multiple length are recommended to be selected within the random length range. The recommended specific length and multiple length tolerances Deviation grade Non-standardized wall thickness tolerance Deviation grade Standardized minimum wall thickness tolerance NOTE. Smin is the minimum wall thickness of the steel tube. are shown in Table 11.The recommended allowance for each cutting of the multiple length is as follows.

6 Shape

6.1 Curvature 6.1.1 Curvature in total length The recommended curvature in total length requirements are shown in Table 12. Deviation grade Specific length and multiple length tolerance Deviation grade Specific length and multiple length tolerance 6.1.2 Curvature per meter The recommended curvature per meter is shown in Table 13.

7 Mass

7.1 The theoretical weight of steel tubes is calculated according to formula (1). 7.2 For steel tubes delivered by theoretical weight, the tolerance between the actual weight and the theoretical weight of the steel tube may be specified according to the requirements of the purchaser. The recommended tolerance between the actual weight and the theoretical weight of a single steel tube is shown in Table 15.The recommended tolerance between the theoretical weight and the actual weight of each batch of steel tubes not less than 10t is ±7.5%W or ±5%W. ......
Source: Translated/reviewed by www.ChineseStandard.net / Wayne Zheng et al.
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