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GB/T 8891: Historical versions
| Std ID | Version | USD | Buy | Deliver [PDF] in | Title (Description) |
| GB/T 8891-2025 | English | 359 |
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Copper and copper alloy tube for heat radiator
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| GB/T 8891-2013 | English | 349 |
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Tube of copper and copper alloy for heat radiator
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| GB/T 8891-2000 | English | 279 |
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Flat tube of copper and copper alloy for heat radiator
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| GB/T 8891-1988 | English | RFQ |
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3 days [Need to translate]
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Flat tube of copper and copper alloy for heat radiator
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Basic data
| Standard ID | GB/T 8891-2025 (GB/T8891-2025) |
| Description (Translated English) | Copper and copper alloy tube for heat radiator |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | H62 |
| Classification of International Standard | 77.150.30 |
| Word Count Estimation | 18,196 |
| Date of Issue | 2025-10-31 |
| Date of Implementation | 2026-05-01 |
| Older Standard (superseded by this standard) | GB/T 8891-2013 |
| Issuing agency(ies) | State Administration for Market Regulation and Standardization Administration of China |
GB/T 8891-2025: Copper and copper alloy tube for heat radiator
---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 77.150.30
CCSH62
National Standards of the People's Republic of China
Replaces GB/T 8891-2013
Copper and copper alloy heat pipes
Published on 2025-10-31
Implemented on May 1, 2026
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 replaces GB/T 8891-2013 "Copper and Copper Alloy Heat Dissipation Pipes". Compared with GB/T 8891-2013, the main differences are in structural adjustments and rewriting.
Aside from the logical changes, the main technical changes are as follows.
a) Product “Classification and Labelling” has been changed (see Chapter 4, 3.1 of the.2013 edition);
b) Added grade "H96" (see Table 1); changed the status of grade "T2" and the specifications of grade "TU0" (see Table 1,.2013 edition).
(Table 1)
c) Technical requirements for the dimensions and permissible deviations of trapezoidal tubes have been added (see Table 5);
d) Technical requirements for the fillet radius of rectangular and trapezoidal tubing have been added (see 5.2.5);
e) The technical requirements and test methods for the "hardness test" have been added (see Table 12 and 6.3.2);
f) The technical requirements and test methods for the "pneumatic test" have been revised (see 5.4.1 and 6.4.1, 3.5 and 4.4 in the.2013 edition);
g) The chemical composition analysis method has been changed (see 6.1, 4.1 in the.2013 edition);
h) The method for room temperature tensile testing of pipes has been modified (see 6.3.1, 4.3 in the.2013 edition);
i) Increased technical requirements for sampling (see 7.4).
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 Nonferrous Metals Industry Association.
This document is under the jurisdiction of the National Technical Committee on Standardization of Nonferrous Metals (SAC/TC243).
This document was drafted by. Zhejiang Provincial Metallurgical Research Institute Co., Ltd., Baiyin Nonferrous Northwest Copper Processing Co., Ltd., and Jiangsu Canghuan Copper Industry Co., Ltd.
Limited Liability Company, Zhejiang Provincial Metallurgical Products Quality Inspection Station Co., Ltd., Zhejiang Hailiang Co., Ltd., Jiangxi Nailuo Copper Co., Ltd., China Aluminum
Luoyang Copper Processing Co., Ltd., Guangdong Longfeng Precision Copper Tube Co., Ltd., and Chongqing Longyu Precision Copper Tube Co., Ltd.
The main drafters of this document are. Chen Yonggang, Li Feng, Hua Jie, Liu Bin, Wei Lianyun, Liu Jinlong, Cao Li, Song Xiqian, Zhang Wenlong, and Zhang Xuhui.
Pan Junyi, Zhang Peng, Gu Yudong, Zhang Lu, Wang Shaofeng, Zhang Zhiyang, Han Qiushui, Li Baodong, Zhao Baomin, Shen Fanghong, Tang Xiaolin, Miao Zhiqiang, Huang Jiaying,
Guo Liquan.
The release history of this document and the document it replaces is as follows.
---First published in 1988 as GB/T 8891-1988 "Copper and Copper Alloy Heat Dissipation Flat Tubes", and revised for the first time in.2000;
---Revised for the second time in.2013 as GB/T 8891-2013 "Copper and Copper Alloy Heat Dissipation Pipes";
---This is the third revision.
Copper and copper alloy heat pipes
1 Scope
This document specifies the classification and marking, technical requirements, test methods, inspection rules, marking, packaging, and transportation of copper and copper alloy heat sinks.
Storage and accompanying documents and order contents.
This document applies to copper and copper alloy heat pipes used in radiators for power machinery such as tanks, automobiles, locomotives, and tractors, as well as in the aerospace industry.
(Hereinafter referred to as "pipes").
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 2828.1 Sampling Procedures for Inspection by Attributes - Part 1.Sampling Schemes Retrieved by Acceptable Quality Limit (AQL) for Lot-by-Lot Inspection
GB/T 4340.1 Metallic materials - Vickers hardness test - Part 1.Test method
GB/T 5121 (all parts) Chemical analysis methods for copper and copper alloys
GB/T 5231 Grades and Chemical Compositions of Processed Copper and Copper Alloys
GB/T 5248 Eddy current testing method for seamless copper and copper alloy tubes
GB/T 8170 Rules for rounding off numerical values and the representation and determination of limiting values
GB/T 8888 Packaging, marking, transportation, storage and quality certificate of heavy non-ferrous metal processed products
GB/T 10567.2 Test method for residual stress in copper and copper alloy processed materials - ammonia fumigation test method
GB/T 26303.1 Methods for dimensional inspection of copper and copper alloy processed materials – Part 1.Tubes
GB/T 34505 Copper and Copper Alloys - Tensile Testing at Room Temperature
YS/T 482 Analysis Methods for Copper and Copper Alloys. Spark Discharge Atomic Emission Spectrometry
YS/T 483 Analytical Methods for Copper and Copper Alloys. X-ray Fluorescence Spectroscopy (Wavelength Dispersive Type)
YS/T 668 Sampling Methods for Physical and Chemical Testing of Copper and Copper Alloys
3 Terms and Definitions
This document does not contain any terms or definitions that need to be defined.
4.Classification and Labeling
4.1 Product Classification
The grade, code, condition, and specifications of the pipes shall conform to the provisions of Table 1.A schematic diagram of the cross-section of the pipes is shown in Figure 1.This shall be determined through negotiation between the supplier and the buyer.
Other grades or specifications of pipes can be supplied.
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