|
US$459.00 ยท In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 45681-2025: General technical specification for repair welding of steel castings
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 45681-2025 | English | 459 |
Add to Cart
|
4 days [Need to translate]
|
General technical specification for repair welding of steel castings
| Valid |
GB/T 45681-2025
|
PDF similar to GB/T 45681-2025
Basic data | Standard ID | GB/T 45681-2025 (GB/T45681-2025) | | Description (Translated English) | General technical specification for repair welding of steel castings | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J31 | | Classification of International Standard | 77.140.01 | | Word Count Estimation | 22,212 | | Date of Issue | 2025-05-30 | | Date of Implementation | 2025-12-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 45681-2025: General technical specification for repair welding of steel castings---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 77.140.01
CCSJ31
National Standard of the People's Republic of China
General technical specification for repair welding of steel castings
Released on 2025-05-30
2025-12-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
Table of contents
Preface III
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Classification of casting defects 2
5 Defect repair welding range 2
6 Preparation before repair welding 2
7 Repair welding 4
8 Post-weld heat treatment 5
9 Inspection and record after repair welding 5
Appendix A (Informative) Welding rod selection, welding rod drying and welding parameters 6
Appendix B (Informative) Preheating temperature before welding and welding interlayer temperature 9
Appendix C (Informative) Post-heat treatment and post-weld heat treatment temperature 12
Appendix D (Informative) Casting Repair Welding Operation Record 15
References 16
Table A.1 Welding rod selection, welding rod drying and welding parameters 6
Table B.1 Preheating temperature before welding and welding interlayer temperature 9
Table C.1 Post-heat treatment and post-weld heat treatment temperatures 12
Table D.1 Casting repair welding operation record 15
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.
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 is proposed and coordinated by the National Casting Standardization Technical Committee (SAC/TC54).
This document was drafted by. Wuzhong Instrument Co., Ltd., Anhui Yangtian Jinsu New Energy Equipment Co., Ltd., Jiangsu Xingyuan Power Plant Metallurgy
Equipment Manufacturing Co., Ltd., Jiangsu Wanheng New Material Technology Co., Ltd., Sanming Yijun Machinery Casting Co., Ltd., Wenzhou Haige Valve Co., Ltd.
Co., Ltd., CGN Engineering Co., Ltd., China Machinery Engineering Institute Group Shenyang Foundry Research Institute Co., Ltd., Harbin Large Electric Motor Research Institute Co., Ltd.
Company, Shandong Tianli Machinery Casting Co., Ltd., Xiangyang Jinnaite Machinery Co., Ltd., Chengde Rongmao Steel Casting Co., Ltd., Shanghai Steam Turbine
Co., Ltd., Erzhong (Deyang) Heavy Equipment Co., Ltd., Tongyu Heavy Industry Co., Ltd., Baosteel Group Machinery Equipment Manufacturing Co., Ltd.,
Shandong Heavy Equipment Testing Technology Co., Ltd., Yantai Hengbang Pump Industry Co., Ltd., Yantai Standard Metrology Inspection and Testing Center, Tsinghua University, Hebei
University of Technology, Shenyang University of Technology, Anhui University of Science and Technology, Qingdao Kehua Steel Structure Co., Ltd., Zhuzhou Riwang Precision Co., Ltd., Hubei Gucheng
County Donghua Machinery Co., Ltd., Ganzhou Zhiyue Machinery Co., Ltd., Liyang Feiyue Electromechanical Co., Ltd., Qingdao Degut Energy Saving Equipment Co., Ltd.
Co., Ltd., Chongqing Xingda Shipbuilding Co., Ltd., Huaxia High-speed Railway Operation and Maintenance Co., Ltd., Tangshan Caofeidian Industrial Zone Changbai Electromechanical Equipment Co., Ltd.
Beixiu Repair Co., Ltd., Zhejiang Suijin Special Casting Co., Ltd., Hunan Tianzhuo Pipe Industry Co., Ltd., Zhongjun Technology (Shenzhen) Co., Ltd., Changchun
Sanyou Auto Parts Manufacturing Co., Ltd., Jiangmen Guangjin Casting and Forging Co., Ltd., Qinfeng Technology (Anhui) Co., Ltd., Zhejiang Deka Control
Valve Instrument Co., Ltd., Shandong Guanxian Zhongli Traffic Facilities Co., Ltd., Jiangsu Dongye Roller Co., Ltd., Taigang Alloy (Zhongshan) Co., Ltd.,
CSSC Shuangrui (Luoyang) Special Equipment Co., Ltd., CRRC Qishuyan Locomotive and Rolling Stock Technology Research Institute Co., Ltd., China Railway Baoqiao Group Co., Ltd.
company.
The main drafters of this document are. Wang Xuepeng, Wang Yong, Wang Yuanyuan, Zhang Jian, Wu Tieming, Cao Qiao, Zhu Guowei, Shao Tian, Yu Bo, Qiu Keqiang, Wang Qingyu,
Zhang Huandong, Chen Yatao, Liu Yuanyi, Guo Chun, Ma Zhengqiang, Wang Lianghui, Qiao Mu, Ma Kai, Chen Xiang, Wang Jinghui, Shuai Dejun, Jiang Yanfei, Zhu Zhengfeng,
Lin Shaobin, Sun Zhibiao, Wang Hanchao, Xu Xilong, Yang Zhisen, Li Shuli, Zhang Jianxiong, Wu Haibin, Cui Lanfang, Su Zhidong, Chang Siwei, Zhang Haoran,
Li Pengrui, Sun Wenqin, Song Xianjie, Xu Zulun, Wang Xiaodong, He Jianquan, Huang Xin, Wei Zhixiang, Li Jie, Song Chao, Kang Kang, Yang Jingfang, Yuan Changhua,
Dai Wenbo, Xu Haiyong, Gao Peng, Wang Guishen, Bai Dacheng, Luo Yaoping, Xu Wenhao.
General technical specification for repair welding of steel castings
1 Scope
This document specifies the defect classification of steel castings, the scope of defect repair welding, preparation before repair welding, repair welding, post-weld heat treatment, and post-repair welding inspection.
and records.
This document is applicable to the repair welding of pressure-bearing castings (hereinafter referred to as castings) made of carbon steel, alloy steel and stainless steel.
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 983 Stainless steel welding rods
GB/T 3375 Welding terminology
GB/T 5117 Non-alloy steel and fine grain steel welding rods
GB/T 5118 Heat-resistant steel welding rods
GB/T 5611 Casting Terminology
GB/T 8110 Solid welding wire for non-alloy steel and fine grain steel for gas shielded arc welding
GB/T 10045 Flux-cored welding wire for non-alloy steel and fine grain steel
GB/T 15169 Skill assessment of welders for steel fusion welding
GB/T 17493 Heat-resistant steel flux-cored welding wire
GB/T 37400.7 General technical requirements for heavy machinery Part 7.Repair welding of steel castings
GB/T 40800 Specification for welding procedure assessment of steel castings
3 Terms and definitions
The terms and definitions defined in GB/T 3375 and GB/T 5611 and the following apply to this document.
3.1
interpasstemperature
In multi-layer and multi-pass welding, the temperature of the adjacent welds should be maintained before the subsequent welds are welded (usually within 25mm from the weld).
Note. Commonly known as inter-channel temperature.
3.2
The test process and result evaluation carried out to verify the correctness of the proposed welding process for weldments.
Note. In this document, welding procedure qualification refers to the mechanical properties, bending properties, etc. of welded joints welded according to PWPS or the chemical composition, corrosion resistance, etc. of corrosion-resistant cladding layers.
The process of conducting verification tests and result evaluation on PWPS to determine whether the corrosion performance and bending performance of cladding parts meet the requirements.
3.3
Welding procedure documents prepared for welding procedure assessment.
Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 45681-2025_English be delivered?Answer: Upon your order, we will start to translate GB/T 45681-2025_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time. Question 2: Can I share the purchased PDF of GB/T 45681-2025_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 45681-2025_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet. Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to [email protected]. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.
|