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GB/T 26024-2021: Seamless copper and copper alloys tube for valves on air-conditioning and refrigeration system
Status: Valid GB/T 26024: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 26024-2021 | English | 229 |
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Seamless copper and copper alloys tube for valves on air-conditioning and refrigeration system
| Valid |
GB/T 26024-2021
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| GB/T 26024-2010 | English | 439 |
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Seamless copper and copper alloys tube for valves on air-conditioning and refrigeration system
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GB/T 26024-2010
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PDF similar to GB/T 26024-2021
Basic data | Standard ID | GB/T 26024-2021 (GB/T26024-2021) | | Description (Translated English) | Seamless copper and copper alloys tube for valves on air-conditioning and refrigeration system | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H62 | | Word Count Estimation | 11,153 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 26024-2021: Seamless copper and copper alloys tube for valves on air-conditioning and refrigeration system
---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.
Seamless copper and copper alloys tube for valves on air-conditioning and refrigeration system
ICS 77:150:30
CCSH62
National Standards of People's Republic of China
Replacing GB/T 26024-2010
Copper and copper alloy seamless pipes for valve parts of air conditioning and refrigeration systems
Published on 2021-12-31
2022-07-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration
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 of Standardization Documents"
drafted:
This document replaces GB/T 26024-2010 "Copper and Copper Alloy Seamless Tubes for Valves of Air-conditioning and Refrigeration Systems", and GB/T 26024-
Compared with:2010, except for structural adjustment and editorial changes, the main technical changes are as follows:
a) The representation method of pipe material code is added (see 4:1);
b) Changed the state representation method (see 4:1, 3:1:1 of the:2010 edition);
c) Changed the specification range of TP2 straight pipe, and changed the inner diameter range from "2:0mm~95:0mm" to "2:0mm~
100:0mm"; change the outer diameter range from "4:0mm~100:0mm" to "3:0mm~105:0mm"; change the wall thickness range from
Change "0:5mm~2:0mm" to "0:5mm~2:5mm"; change the length range from "100mm~6000mm" to
"1000mm~6000mm" (see 4:1, 3:1:1 of the:2010 edition);
d) Changed the specification range of TP2 coil, and changed the outer diameter range from "4:0mm~22:0mm" to "4:0mm~
24:0mm"; the lower limit of the length of the TP2 coil is added "≥15000mm" (see 4:1, 3:1:1 of the:2010 edition);
e) Changed the specification range of H65 straight pipe, and changed the inner diameter range from "14:0mm~42:0mm" to "14:0mm~
105:0mm"; change the outer diameter range from "20:0mm~45:0mm" to "16:6mm~113:0mm"; change the wall thickness range
Change from "1:5mm~3:0mm" to "1:3mm~4:0mm"; change the length range from "100mm~6000mm"
is "100mm~3000mm" (see 4:1, 3:1:1 of the:2010 edition);
f) Deleted the residual stress test method for H65 pipes: mercurous nitrate test method (see 4:5:1 of the:2010 edition);
g) Changed the inclination of the straight pipe with an outer diameter greater than 50mm, and changed "2:5% of the outer diameter" to "2:0% of the nominal outer diameter" (see 5:2:3,
3:3:3 of the:2010 version);
h) The maximum arc depth of 100mm~200mm for H65 straight pipe length is 0:20mm, and the maximum for ≥200mm~400mm
Arc depth 0:35mm (see 5:2:5);
i) Changed the tensile strength of TP2 grade O60 state, changed "≥205MPa" to "≥215MPa" (see 5:3,:2010 edition
3:4);
j) Changed the measurement method of size, clarified that the measurement method of pipe size and its allowable deviation should be in accordance with GB/T 26303:1
The straightness inspection of the H65 pipe whose length is less than 400mm is carried out with a feeler gauge (see 6:2, 4:2 of the:2010 edition);
k) Changed the grain size of TP2 grade O60 state, changed "0:025mm~0:060mm" to "0:015mm~0:060mm"
(see 5:5, 3:7 of the:2010 edition);
l) Modified the tensile test method and changed the tensile test method GB/T 228-2002 to GB/T 34505-2017 (see 6:3,
4:3 of the:2010 edition):
Please note that some content of this document may be patented: The issuing agency of this document assumes no responsibility for identifying patents:
This document is proposed by China Nonferrous Metals Industry Association:
This document is under the jurisdiction of the National Nonferrous Metals Standardization Technical Committee (SAC/TC243):
This document is drafted by: Jiangsu Longda Superalloy Co:, Ltd:, Jiangxi Naile Copper Co:, Ltd:, Guangdong Longfeng Precision Copper Tube Co:, Ltd:
Company, Zhejiang Tianning Alloy Material Co:, Ltd:, Changshu Zhongjia New Material Co:, Ltd:, Zhejiang Xingpeng Copper Material Group Co:, Ltd:
The main drafters of this document: Zhou Xiangdong, Gao Xin, Liu Jinlong, Zhu Yan, Jiang Hongyun, Zhao Qinhai, Liang Zihao, Luo Qiliang, Song Xixi, Liu Xinwei,
Peng Yongcong, Chen Fang, Sun Xinchun, Li Baojin:
The previous releases of this document and the documents it replaces are as follows:
---First published in:2010 as GB/T 26024-2010;
---This is the first revision:
Copper and copper alloy seamless pipes for valve parts of air conditioning and refrigeration systems
1 Scope
This document specifies the classification, marking and technical requirements of copper and copper alloy seamless pipes (hereinafter referred to as "pipes") used in air conditioning and refrigeration system valves:
requirements, test methods, inspection rules, markings, packaging, transportation, storage, accompanying documents and the contents of the order form:
This document applies to the use of copper and copper alloys without the
Sewing tube:
2 Normative references
The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, dated citations
documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to
this document:
GB/T 242 Metal Pipe Flaring Test Method
GB/T 2828:1 Counting Sampling Inspection Procedure Part 1: Lot-by-Lot Inspection Sampling Plan Retrieved by Acceptance Quality Limit (AQL)
GB/T 5121 (all parts) Methods for chemical analysis of copper and copper alloys
GB/T 5231 Processed copper and copper alloy grades and chemical composition
GB/T 5248-2016 Eddy current flaw detection method for copper and copper alloy seamless pipes
GB/T 8170 Numerical Rounding Rules and Representation and Judgment of Limit Values
GB/T 8888 Packaging, marking, transportation, storage and quality certificate of heavy non-ferrous metal processing products
GB/T 10567:2 Test method for residual stress of copper and copper alloy processed materials Ammonia fumigation test method
GB/T 26303:1 Copper and copper alloy processing materials external dimension testing method - Part 1: Pipe
GB/T 34505-2017 Room temperature tensile test method for copper and copper alloy materials
YS/T 347 copper and copper alloy average grain size determination method
YS/T 482 Analysis method of copper and copper alloy Photoemission spectrometry
YS/T 483 Analysis method of copper and copper alloy X-ray fluorescence spectrometry (wavelength dispersion type)
YS/T 668 Sampling method for physical and chemical testing of copper and copper alloys
Preparation method of YS/T 815 copper and copper alloy mechanical properties and process performance samples
3 Terms and Definitions
There are no terms and definitions that need to be defined in this document:
4 Classification and marking
4:1 Product Classification
The grade, code, state, type and specification of the pipe shall comply with the provisions of Table 1:
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