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GB/T 26301-2021: Copper-nickel-zinc alloy strips and foils for shield
Status: Valid GB/T 26301: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 26301-2021 | English | 229 |
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Copper-nickel-zinc alloy strips and foils for shield
| Valid |
GB/T 26301-2021
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| GB/T 26301-2010 | English | 439 |
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Copper-nickel-zine alloy strips for shield
| Obsolete |
GB/T 26301-2010
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PDF similar to GB/T 26301-2021
Basic data | Standard ID | GB/T 26301-2021 (GB/T26301-2021) | | Description (Translated English) | Copper-nickel-zinc alloy strips and foils for shield | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H62 | | Word Count Estimation | 11,134 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 26301-2021: Copper-nickel-zinc alloy strips and foils for shield---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.
Copper-nickel-zinc alloy strips and foils for shield
ICS 77:150:30
CCSH62
National Standards of People's Republic of China
Replaces GB/T 26301-2010
Zinc white copper foil for shielding
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 26301-2010 "Zinc and white copper tape for shielding": Compared with GB/T 26301-2010, except for structural adjustment and editing
In addition to the editorial changes, the main technical changes are as follows:
a) Changed the alloy state representation (see 4:1, 3:1:1 of the:2010 edition);
b) Added the alloy code representation (see 4:1);
c) Added BZn18-17, BZn12-24 and BZn12-29 grades and related regulations (see 4:1);
d) Changed the thickness and width range of the strip foil, the thickness range was changed from "0:10mm~0:80mm" to "0:08mm~
0:80mm", the width range is changed from "9mm~400mm" to "9mm~600mm" (see 4:1,:2010 edition of
3:1:1);
e) Deleted Table 2 in GB/T 26301-2010: The chemical composition of BZn18-10 in the table is as specified in GB/T 5231 (see 5:1,
3:2 of the:2010 edition);
f) Changed the regulations on the side curvature of the foil, when the thickness is greater than 0:50mm, the requirements are changed from "≤6mm, ≤5mm, ≤4mm,
≤3mm" is changed to "≤5mm, ≤4mm, ≤3mm, ≤2mm" (see 5:2:3, 3:3:3 of the:2010 edition);
g) Add the provisions of the technical requirements for solderability, test methods and inspection rules (see 5:6, 6:6, 7:4);
h) Added the stipulation that the chemical composition analysis method of the tape foil is carried out according to the provisions of YS/T 482 or YS/T 483 (see 6:1);
i) The tensile test method has been changed from "GB/T 228" to "GB/T 34505-2017", and the tensile test specimen number is
Changes to the provisions of GB/T 34505-2017 (see 6:3, 4:3:1 of the:2010 edition);
j) Added "Sampling method according to the provisions of YS/T 668" (see 7:4);
k) Added the stipulation of "Preparation of specimens for bending performance according to the provisions of YS/T 815" (see 7:4);
l) Added "The value of the inspection result shall be rounded up according to the provisions of GB/T 8170, and shall be determined by the rounding value comparison method" (see
7:5:1):
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: Anhui Xinke Copper Co:, Ltd:, Ningbo Xingye Shengtai Group Co:, Ltd:, Ningbo Jintian Copper (Group) Co:, Ltd:
Co:, Ltd:, Guangxi Xinke Copper Industry Co:, Ltd:, Youyan Engineering Technology Research Institute Co:, Ltd:
The main drafters of this document: Yang Chuntai, Mao Yaodong, Li Jundong, Xuan Xiwen, Niu Song, Liu Feng, Chao Guohui, Yuan Hefeng, Feng Liting, Chen Jun,
He Keke, Yuan Kun, Li Weiqiang, Peng Lijun, Huang Guojie:
The previous versions of this document and its superseded documents are as follows:
---2010 was first released as GB/T 26301-2010;
---This is the first revision:
Zinc white copper foil for shielding
1 Scope
This document specifies the classification and marking, technical requirements, test methods, inspection rules, marking, packaging, transportation and
input, storage and accompanying documents and the contents of the order form:
This document applies to zinc-nickel alloy tape foil (hereinafter referred to as tape foil) for making shielding components (covers, shells) in the electronic communication industry:
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 232 Bending test method for metallic materials
GB/T 2423:32 Environmental testing of electrical and electronic products - Part 2: Test method Test Ta: Wetting weighing method Solderability
GB/T 4340:1 Vickers Hardness Test for Metal Materials Part 1: Test Method
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 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 26303:3 Copper and Copper Alloy Processed Materials External Dimensions Test Method Part 3: Sheets and Strips
GB/T 34505-2017 Room temperature tensile test method for copper and copper alloy materials
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 and specification of the foil material shall comply with the provisions in Table 1:
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