GB/T 15062-2025Wrought superalloy — Seamless tube (English PDF)

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 replaces GB/T 15062-2008 Superalloy tube for general application and GB/T 28295-2012 General specification of superalloy tubes. This document is based on GB/T 15062-2008 and integrates the content of GB/T 28295-2012.Compared with GB/T 15062-2008, apart from structural adjustments and editorial changes, the main technical changes are as follows.

a) Alloy smelting methods have been added (see 5.1).

b) Seven alloy grades and corresponding technical requirements have been added, namely GH1131, GH3128, GH3535, GH3617, GH3625, GH4080A, and GH4169 (see Chapter 6).

Please note that some of the contents of 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 Technical Committee on Steel of Standardization Administration of China (SAC/TC183).

Drafting organizations of this document. Baowu Special Metallurgy Co., Ltd., Beijing Cisri-Gaona Materials & Technology Co., Ltd., Jiangyou Changcheng Special Steel Co., Ltd. of Pangang Group, Baoyin Special Materials Technology Co., Ltd., Zhejiang Jiuli Hi-tech Metals Co., Ltd., Jiangsu Changbao Steeltube Co., Ltd., China Metallurgical Information and Standardization Institute, and University of Science and Technology Beijing.

Main drafters of this document. Li Xiaodong, Wang Qingzeng, Xu Guohua, Pei Binghong, Zhuang Zhuojun, Su Cheng, Gao Pei, Wang Lin, Dai Pengchao, Gu Yu, Yan Chengming, Yao Zhihao, Liu Yu, Sun Wenqiang, Li Jun, and Liu Tao.

The release history of this document and the document it replaces is as follows.

-- First published in 1982 as GBn 188-1982, 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.

Wrought superalloy - Seamless tube

1 Scope

This document specifies the ordering details, manufacturing process, technical requirements, inspection rules, packaging, marking, and quality certificate for wrought superalloy seamless pipes, and describes the corresponding test methods.

This document applies to wrought superalloy seamless pipes (hereinafter referred to as pipes) processed by cold drawing (rolling) technology.

2 Normative references

GB/T 222

GB/T 223

GB/T 228.1

GB/T 228.2

GB/T 230.1

GB/T 231.1

GB/T 241

GB/T 242

GB/T 246

GB/T 2039

GB/T 2102

GB/T 2975

GB/T 4340.1

GB/T 5777

GB/T 6394

GB/T 7735

GB/T 11170

GB/T 13298

GB/T 14992

GB/T 20066

GB/T 20123

GB/T 20124

GB/T 20127

GB/T 30062

GB/T 38939

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 condition;

e) dimensions and permissible deviation levels;

f) specific and multiple lengths (to specify if required);

g) weight or number of pieces;

h) ultrasonic testing qualification level;

i) other special requirements.

5 Manufacturing process