GB/T 15062-2025 English PDF

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 15062-2025	359	Add to Cart	4 days	Wrought superalloy - Seamless tube	Valid
GB/T 15062-2008	259	Add to Cart	3 days	Superalloy tube for general application	Valid
GB/T 15062-1994	239	Add to Cart	2 days	Heat-resisting superalloy tube for general application	Obsolete

Similar standards

GB/T 14994   GB/T 14992   GB/T 14991   GB/T 15062   GB/T 14992   GB/T 14993   

Basic data

Standard ID: GB/T 15062-2025 (GB/T15062-2025)
Description (Translated English): Wrought superalloy - Seamless tube
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H57
Classification of International Standard: 77.140
Word Count Estimation: 18,143
Date of Issue: 2025-08-29
Date of Implementation: 2026-03-01
Older Standard (superseded by this standard): GB/T 15062-2008, GB/T 28295-2012
Issuing agency(ies): State Administration for Market Regulation; Standardization Administration of China

GB/T 15062-2025: Wrought superalloy - Seamless tube

---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/GBT15062-2025
ICS 77.140 CCSH57 National Standards of the People's Republic of China Replaces GB/T 15062-2008 and GB/T 28295-2012 Deformed high-temperature alloy seamless tube 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 15062-2008 "General Purpose High-Temperature Alloy Tubes" and GB/T 28295-2012 "High-Temperature Alloy Tubes - General Purpose". Technical Requirements. This document is based on GB/T 15062-2008, and integrates the content of GB/T 28295-2012. Compared to.2008, aside from structural adjustments and editorial changes, the main technical changes are as follows. a) Added alloy smelting methods (see 5.1); b) Seven alloy grades were added. GH1131, GH3128, GH3535, GH3617, GH3625, GH4080A, and GH4169. And the corresponding technical requirements (see Chapter 6). 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. Baowu Special Metallurgy Co., Ltd., Beijing Steel Research Institute Gaona Technology Co., Ltd., and Panzhihua Iron & Steel Group Jiangyou Great Wall Special Metallurgy Co., Ltd. Shugang Co., Ltd., Baoyin Special Materials Technology Co., Ltd., Zhejiang Jiuli Special Materials Technology Co., Ltd., and Jiangsu Changbao Plassen Steel Pipe Co., Ltd. Limited Company, Metallurgical Industry Information and Standardization Research Institute, Beijing University of Science and Technology. The main drafters of this document are. Li Xiaodong, Wang Qingzeng, Xu Guohua, Pei Binghong, Zhuang Zhuojun, Su Cheng, Gao Pei, Wang Lin, Dai Pengchao, and Gu Yu. Yan Chengming, Yao Zhihao, Liu Yu, Sun Wenqiang, Li Jun, Liu Tao. The release history of this document and the document it replaces is as follows. ---First published in 1982 as GB n188-1982, changed to GB/T 15062-1994 in.1994, and revised for the first time in.2008; ---This is the second revision, incorporating the content of GB/T 28295-2012. Deformed high-temperature alloy seamless tube 1.Scope This document specifies the ordering details, manufacturing process, technical requirements, inspection rules, packaging, marking, and quality of wrought high-temperature alloy seamless tubes. The certificate describes the corresponding test methods. This document applies to seamless high-temperature alloy tubes (hereinafter referred to as tubes) manufactured using cold drawing (rolling) processes.

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 222 Permissible Deviations in Chemical Composition of Finished Steel and Alloy Products GB/T 223 (all parts) Chemical Analysis Methods for Iron and Steel and Alloys GB/T 228.1 Metallic materials – Tensile testing – Part 1.Test method at room temperature GB/T 228.2 Metallic materials – Tensile testing – Part 2.High temperature test method GB/T 230.1 Metallic materials - Rockwell hardness test - Part 1.Test method GB/T 231.1 Metallic materials – Brinell hardness test – Part 1.Test method GB/T 241 Hydraulic test method for metal tubes GB/T 242 Test method for flaring of metal pipes GB/T 246 Test method for flattening of metallic tubes GB/T 2039 Metallic materials - Uniaxial tensile creep test method GB/T 2102 Acceptance, Packaging, Marking and Quality Certificate of Steel Pipes GB/T 2975 Sampling Location and Specimen Preparation for Mechanical Property Testing of Steel and Steel Products GB/T 4340.1 Metallic materials - Vickers hardness test - Part 1.Test method GB/T 5777 Automatic circumferential ultrasonic testing of longitudinal and/or transverse defects in seamless and welded (excluding submerged arc welded) steel pipes GB/T 6394 Method for Determination of Average Grain Size of Metals GB/T 7735 Automatic eddy current testing for defects in seamless and welded (excluding submerged arc welded) steel pipes GB/T 11170 Determination of Multi-Element Content in Stainless Steel by Spark Discharge Atomic Emission Spectrometry (Conventional Method) GB/T 13298 Examination Methods for Metallic Microstructure GB/T 14992 Grades and Chemical Compositions of High-Temperature Alloys and Intermetallic Compounds GB/T 20066 Sampling and Sample Preparation Methods for the Determination of Chemical Composition of Steel and Iron GB/T 20123 Determination of Total Carbon and Sulfur Content in Iron and Steel - Infrared Absorption Method After Combustion in a High-Frequency Induction Furnace (Conventional Method) GB/T 20124 Determination of Nitrogen Content in Iron and Steel - Inert Gas Molten Thermal Conductivity Method (Conventional Method) GB/T 20127 (all parts) Determination of trace elements in iron and steel and alloys GB/T 30062 Steel Pipe Terminology GB/T 38939 Determination of Multi-Element Content in Nickel-Based Alloys by Spark Discharge Atomic Emission Spectrometry (Conventional Method) Chemical Analysis Methods for HB5220 (All Parts) High-Temperature Alloy HB20241 (All Parts) High Temperature Alloy Chemical Composition Spectroscopic Analysis Method 3.Terms and Definitions The terms and definitions defined in GB/T 14992 and GB/T 30062 apply to this document. 4.Order details Contracts for orders placed in accordance with this document should include the following information. a) This document number; b) Alloy grade; c) Smelting methods; d) Delivery status; e) Dimensions and tolerance levels; f) Standard and multiple lengths (please specify if required); g) Weight or number of pieces; h) Ultrasonic testing qualification level; i) Other special requirements. 5.Manufacturing process 5.1 Alloy smelting methods The smelting method for the alloy shall conform to the provisions of Table 1.Alternatively, upon consultation between the supplier and the purchaser, other smelting methods that meet all the requirements of this document may be used. Refining methods. The smelting methods used should be specified in the contract and quality certificate. Table 1.Alloy smelting methods Brand electric arc furnace smelting Electroslag remelting electric arc furnace smelting vacuum arc Remelting Non-vacuum feeling Smelting Electroslag remelting Non-vacuum induction Vacuum Melting Arc remelting Vacuum induction Smelting Electroslag remelting Vacuum induction melting Refining vacuum electricity Arc remelting Vacuum induction melting Electroslag Remelting Fusion vacuum electricity Arc remelting Vacuum induction melting Refining vacuum electricity Arc remelting Slag Remelting 1 GH1131 ● - ● - - - - - 2 GH1140 ● - ● - - - - - 3 GH3030 ● - ● ● ● - - - 4 GH3039 ● ● ● ● ● - - - 5 GH3044 - ● ● ● - ● - - 6 GH3128 - - ● - ● - - - 7 GH3535 ● ● ● ● ● ● - - 8 GH3536 ● - ● - ● ● - - 9 GH3617 ● ● ● ● ● ● - - 10 GH3625 ● ● - - ● ● - - Table 1.Alloy Smelting Methods (Continued) Brand electric arc furnace smelting Electroslag remelting electric arc furnace smelting vacuum arc Remelting Non-vacuum feeling Smelting Electroslag remelting Non-vacuum induction Vacuum Melting Arc remelting Vacuum induction Smelting Electroslag remelting Vacuum induction melting Refining vacuum electricity Arc remelting Vacuum induction melting Electroslag Remelting Fusion vacuum electricity Arc remelting Vacuum induction melting Refining vacuum electricity Arc remelting Slag Remelting 11 GH4080A - - ● ● ● ● - - 12 GH4163 - - ● ● ● ● - - 13 GH4169 - - - - ● ● ● ● Note. ● indicates the recommended smelting method. 5.2 Pipe Manufacturing Method The pipes are manufactured using hot extrusion followed by cold drawing (rolling) or hot piercing followed by cold drawing (rolling) processes. 5.3 Delivery Status 5.3.1 Pipes shall be delivered in a solution-treated and pickled state or a solution-treated state under a protective atmosphere. This shall be agreed upon by both the supplier and the buyer and specified in the contract. It can be delivered in cold-drawn or cold-rolled condition. 5.3.2 Recommended solution treatment regimes are shown in Table 2. Table 2 Recommended solution treatment regimes Serial Number Grade Solution Treatment System 1 GH1131 1120℃~1160℃, water-cooled 2 GH1140 1050℃~1080℃, rapid cooling or water cooling 3 GH3030 980℃~1020℃, water-cooled 4 GH3039 1050℃~1080℃, rapid cooling or water cooling 5 GH3044 1120℃~1210℃, fast cooling 6 GH3128 1140℃~1180℃, fast cooling 7 GH3535 1170℃~1190℃, rapid cooling or water cooling 8 GH3536 1130℃~1170℃, fast cooling 9 GH3617 1150℃~1230℃, rapid cooling or water cooling 10 GH3625 1093℃~1180℃, rapid cooling or water cooling 11 GH4080A 1100℃~1150℃, rapid cooling or water cooling 12 GH4163 1140℃~1160℃, rapid cooling or water cooling 13 GH4169 955℃~1020℃, rapid cooling or water cooling 6.Technical Requirements 6.1 Grade and Chemical Composition 6.1.1 The chemical composition (smelting analysis) of the alloy shall conform to the provisions of Table 3. 6.1.2 The permissible deviation of the chemical composition of the finished pipe shall comply with the provisions of GB/T 222. ......

Image