GB/T 37571-2019 English PDF (GB/T37571-2019)

GB/T 37571-2019: Copper and Copper Alloy Strip for Relay
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GB/T 37571-2019
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77.150.30
H 62
Copper and Copper Alloy Strip for Relay
ISSUED ON: JUNE 4, 2019
IMPLEMENTED ON: MAY 1, 2020
Issued by: State Administration for Market Regulation;
Standardization Administration of the People’s Republic of
China.
Table of Contents
Foreword ... 3 
1 Scope ... 4 
2 Normative References ... 4 
3 Technical Requirements ... 5 
4 Test Methods ... 11 
5 Inspection Rules ... 12 
6 Marking, Packaging, Transportation, Storage and Quality Certificate ... 14 
7 Order Form (or contract) Content ... 14 
Foreword
This Standard was drafted in accordance with the rules in GB/T 1.1-2009.
This Standard was proposed by China Nonferrous Metals Industry Association.
This Standard shall be under the jurisdiction of National Technical Committee 243 on
Nonferrous Metals of Standardization Administration of China (SAC/TC 243).
The drafting organizations of this Standard: Ningbo XINGYE SHENGTAI Group Co.
Ltd.; Ningbo XINGYE XINTAI New Electronic Materials Co., Ltd.; Anhui XINKE Copper
Industry Co., Ltd.; TONGLING JINVI Copper Corp.; KAIMEILONG Precision Copper
Strip (Henan) Co., Ltd.; Jiangxi JPTK Science and Technology Co., Ltd.; Shaoxing
Quality and Technology Supervision and Inspection Institute.
The main drafters of this Standard: Jinjing, Shaoye, Liufeng, Ge Xiaoniu, Liu Qinglan,
Liu Aikui, Hewei, Du Xiyong, Wu Xiaolong, Wang Dongya, Mao Yaodong, Liudong,
Tang Junlie, Li Minghua, Wang Zhongxiang, Shi Kejun, Wangqun, Meng Fanjian, Zhao
Pinxiao, Kong Hongtao.
Copper and Copper Alloy Strip for Relay
1 Scope
This Standard stipulates the technical requirements, test methods, inspection rules,
marking, packaging, transportation, storage, quality certificate and order form (or
contract) content of copper and copper alloy strip for relay.
This Standard is applicable to copper and copper alloy strip for relay (hereinafter
referred to as strip).
2 Normative References
The following documents are indispensable to the application of this document. In
terms of references with a specified date, only versions with a specified date are
applicable to this document. In terms of references without a specified date, the latest
version (including all the modifications) is applicable to this document.
GB/T 232 Metallic Materials - Bend Test;
GB/T 351 Metallic Materials - Resistivity Measurement Method;
GB/T 4340.1 Metallic Materials - Vickers Hardness Test - Part 1: Test Method;
GB/T 5121 (all parts) Methods for Chemical Analysis of Copper and Copper Alloys;
GB/T 5231 Designation and Chemical Composition of Wrought Copper and Copper
Alloys;
GB/T 8170 Rules of Rounding-off for Numerical Values and Expression and Judgement
of Limiting Values;
GB/T 8888 Wrought Heavy Non-ferrous Metal Products - Packing, Marking,
Transportation, Storing and Certificate of Quality;
GB/T 26303.3 Measuring Methods for Dimensions and Shapes of Wrought Copper
and Copper Alloys - Part 3: Sheets and Strips;
GB/T 32791 Electromagnetic (eddy-current) Examination Method for Electrical
Conductivity of Copper and Copper Alloys;
GB/T 34505-2017 Copper and Copper Alloy Materials - Tensile Testing at Room
Temperature;
YS/T 482 Methods for Analysis of Copper and Copper Alloys - The Atomic Emission
Tensile sample shall comply with the stipulations in GB/T 34505-2017. The type of
sample shall select P01 from Table 3 in GB/T 34505-2017. Test method of Vickers
hardness of strip shall comply with the stipulations in GB/T 4340.1.
4.4 Bending Performance
Bending performance of strip shall comply with the stipulations in GB/T 232.
4.5 Electrical Performance
Electrical performance test of strip shall comply with the stipulations in GB/T 32791 or
GB/T 351. Arbitration shall comply with the stipulations in GB/T 351.
4.6 Surface Quality
Surface quality of strip shall receive visual inspection.
5 Inspection Rules
5.1 Inspection and Acceptance Inspection
5.1.1 Strip shall be inspected by the supply side, which shall guarantee that product
quality complies with the requirements of this Standard and the order form (or contract).
Moreover, quality certificate shall be filled out.
5.1.2 The demand-side shall inspect the received products in accordance with the
stipulations in this Standard and the order form (or contract). If the inspection result
does not comply with the requirements of this Standard and the order form (or contract),
this shall be proposed to the supply-side in the written form; and solved by the demand-
side and the supply-side through negotiation. Objections regarding surface quality and
dimensional deviations shall be proposed within 1 month upon receiving the products.
Other quality objections shall be proposed within 3 months upon receiving the products.
If arbitration is needed, arbitration sampling shall be jointly conducted by the demand-
side and the supply-side.
5.2 Group Batch
Strip shall be submitted for acceptance inspection in batches. Each batch shall be
constituted of strips of the same designation, status and specification. Generally
speaking, the weight of each batch shall be not more than 4,500 kg (if that batch is
under the same furnace No., then, batch weight may not be restricted).
5.3 Inspection Items
5.3.1 Each batch of strips shall receive inspection of chemical composition, dimensions
and allowable deviations, bending performance and surface quality.
5.5.2 When the inspection result of chemical composition is disqualified, then, the
batch of strips shall be determined as disqualified.
5.5.3 When dimensions, allowable deviations and surface quality are disqualified, the
coil of strip shall be determined as disqualified.
5.5.4 When there are samples that are disqualified in the inspection result of
mechanical properties, bending performance and electrical performance, take a
double size of samples for re-inspection from that batch of strips (including the coil of
strip that is disqualified in the previous inspection). If the re-inspection result is
completely qualified, then, that batch of strips shall be determined as qualified. If the
re-inspection result is still disqualified, then, that batch of strips shall be determined as
disqualified. Or, the supply-side may inspect coil by coil, and deliver those that are
qualified.
6 Marking, Packaging, Transportation, Storage and
Quality Certificate
Products’ marking, packaging, transportation, storage and quality certificate shall
comply with the stipulations in GB/T 8888.
7 Order Form (or contract) Content
Order form (or contract) content of materials listed in this Standard shall include the
following content:
a) Product name;
b) Designation (code);
c) Status of supply;
d) Weight;
e) Dimensional precision (common grade or high-precision grade);
f) Either tensile test or hardness test (choose one from them);
g) Electrical performance (when the demand-side requests);
h) Serial No. of this Standard;
i) Others.
__________ END __________
GB/T 37571-2019
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77.150.30
H 62
Copper and Copper Alloy Strip for Relay
ISSUED ON: JUNE 4, 2019
IMPLEMENTED ON: MAY 1, 2020
Issued by: State Administration for Market Regulation;
Standardization Administration of the People’s Republic of
China.
Table of Contents
Foreword ... 3 
1 Scope ... 4 
2 Normative References ... 4 
3 Technical Requirements ... 5 
4 Test Methods ... 11 
5 Inspection Rules ... 12 
6 Marking, Packaging, Transportation, Storage and Quality Certificate ... 14 
7 Order Form (or contract) Content ... 14 
Foreword
This Standard was drafted in accordance with the rules in GB/T 1.1-2009.
This Standard was proposed by China Nonferrous Metals Industry Association.
This Standard shall be under the jurisdiction of National Technical Committee 243 on
Nonferrous Metals of Standardization Administration of China (SAC/TC 243).
The drafting organizations of this Standard: Ningbo XINGYE SHENGTAI Group Co.
Ltd.; Ningbo XINGYE XINTAI New Electronic Materials Co., Ltd.; Anhui XINKE Copper
Industry Co., Ltd.; TONGLING JINVI Copper Corp.; KAIMEILONG Precision Copper
Strip (Henan) Co., Ltd.; Jiangxi JPTK Science and Technology Co., Ltd.; Shaoxing
Quality and Technology Supervision and Inspection Institute.
The main drafters of this Standard: Jinjing, Shaoye, Liufeng, Ge Xiaoniu, Liu Qinglan,
Liu Aikui, Hewei, Du Xiyong, Wu Xiaolong, Wang Dongya, Mao Yaodong, Liudong,
Tang Junlie, Li Minghua, Wang Zhongxiang, Shi Kejun, Wangqun, Meng Fanjian, Zhao
Pinxiao, Kong Hongtao.
Copper and Copper Alloy Strip for Relay
1 Scope
This Standard stipulates the technical requirements, test methods, inspection rules,
marking, packaging, transportation, storage, quality certificate and order form (or
contract) content of copper and copper alloy strip for relay.
This Standard is applicable to copper and copper alloy strip for relay (hereinafter
referred to as strip).
2 Normative References
The following documents are indispensable to the application of this document. In
terms of references with a specified date, only versions with a specified date are
applicable to this document. In terms of references without a specified date, the latest
version (including all the modifications) is applicable to this document.
GB/T 232 Metallic Materials - Bend Test;
GB/T 351 Metallic Materials - Resistivity Measurement Method;
GB/T 4340.1 Metallic Materials - Vickers Hardness Test - Part 1: Test Method;
GB/T 5121 (all parts) Methods for Chemical Analysis of Copper and Copper Alloys;
GB/T 5231 Designation and Chemical Composition of Wrought Copper and Copper
Alloys;
GB/T 8170 Rules of Rounding-off for Numerical Values and Expression and Judgement
of Limiting Values;
GB/T 8888 Wrought Heavy Non-ferrous Metal Products - Packing, Marking,
Transportation, Storing and Certificate of Quality;
GB/T 26303.3 Measuring Methods for Dimensions and Shapes of Wrought Copper
and Copper Alloys - Part 3: Sheets and Strips;
GB/T 32791 Electromagnetic (eddy-current) Examination Method for Electrical
Conductivity of Copper and Copper Alloys;
GB/T 34505-2017 Copper and Copper Alloy Materials - Tensile Testing at Room
Temperature;
YS/T 482 Methods for Analysis of Copper and Copper Alloys - The Atomic Emission
Tensile sample shall comply with the stipulations in GB/T 34505-2017. The type of
sample shall select P01 from Table 3 in GB/T 34505-2017. Test method of Vickers
hardness of strip shall comply with the stipulations in GB/T 4340.1.
4.4 Bending Performance
Bending performance of strip shall comply with the stipulations in GB/T 232.
4.5 Electrical Performance
Electrical performance test of strip shall comply with the stipulations in GB/T 32791 or
GB/T 351. Arbitration shall comply with the stipulations in GB/T 351.
4.6 Surface Quality
Surface quality of strip shall receive visual inspection.
5 Inspection Rules
5.1 Inspection and Acceptance Inspection
5.1.1 Strip shall be inspected by the supply side, which shall guarantee that product
quality complies with the requirements of this Standard and the order form (or contract).
Moreover, quality certificate shall be filled out.
5.1.2 The demand-side shall inspect the received products in accordance with the
stipulations in this Standard and the order form (or contract). If the inspection result
does not comply with the requirements of this Standard and the order form (or contract),
this shall be proposed to the supply-side in the written form; and solved by the demand-
side and the supply-side through negotiation. Objections regarding surface quality and
dimensional deviations shall be proposed within 1 month upon receiving the products.
Other quality objections shall be proposed within 3 months upon receiving the products.
If arbitration is needed, arbitration sampling shall be jointly conducted by the demand-
side and the supply-side.
5.2 Group Batch
Strip shall be submitted for acceptance inspection in batches. Each batch shall be
constituted of strips of the same designation, status and specification. Generally
speaking, the weight of each batch shall be not more than 4,500 kg (if that batch is
under the same furnace No., then, batch weight may not be restricted).
5.3 Inspection Items
5.3.1 Each batch of strips shall receive inspection of chemical composition, dimensions
and allowable deviations, bending performance and surface quality.
5.5.2 When the inspection result of chemical composition is disqualified, then, the
batch of strips shall be determined as disqualified.
5.5.3 When dimensions, allowable deviations and surface quality are disqualified, the
coil of strip shall be determined as disqualified.
5.5.4 When there are samples that are disqualified in the inspection result of
mechanical properties, bending performance and electrical performance, take a
double size of samples for re-inspection from that batch of strips (including the coil of
strip that is disqualified in the previous inspection). If the re-inspection result is
completely qualified, then, that batch of strips shall be determined as qualified. If the
re-inspection result is still disqualified, then, that batch of strips shall be determined as
disqualified. Or, the supply-side may inspect coil by coil, and deliver those that are
qualified.
6 Marking, Packaging, Transportation, Storage and
Quality Certificate
Products’ marking, packaging, transportation, storage and quality certificate shall
comply with the stipulations in GB/T 8888.
7 Order Form (or contract) Content
Order form (or contract) content of materials listed in this Standard shall include the
following content:
a) Product name;
b) Designation (code);
c) Status of supply;
d) Weight;
e) Dimensional precision (common grade or high-precision grade);
f) Either tensile test or hardness test (choose one from them);
g) Electrica...