GB/T 2072-2020 PDF in English
GB/T 2072-2020 (GB/T2072-2020, GBT 2072-2020, GBT2072-2020)
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Name of Chinese Standard | Status |
| GB/T 2072-2020 | English | 135 |
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Nickel and nickel alloy strip and foil
| Valid |
| GB/T 2072-2007 | English | 319 |
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Nickel and nickel alloy strips
| Obsolete |
| GB/T 2072-1993 | English | 239 |
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Nickel and nickel alloy strips
| Obsolete |
Standards related to (historical): GB/T 2072-2020
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GB/T 2072-2020: PDF in English (GBT 2072-2020) GB/T 2072-2020
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77.150.40
H 62
Replacing GB/T 2072-2007
Nickel and nickel alloy strip and foil
ISSUED ON: SEPTEMBER 29, 2020
IMPLEMENTED ON: AUGUST 01, 2021
Issued by: State Administration for Market Regulation;
Standardization Administration of the People's Republic of
China.
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative references ... 5
3 Classification and marking ... 6
4 Technical requirements ... 6
5 Test methods ... 9
6 Inspection rules ... 10
7 Marks, packaging, transportation, storage and quality certificate ... 12
8 Order sheet (or contract) ... 12
Nickel and nickel alloy strip and foil
1 Scope
This Standard specifies classification and marking, technical requirements,
inspection methods, inspection rules and marks, packaging, transportation,
storage and quality certificate as well as order sheet (contract) for nickel and
nickel alloy strip and foil.
This Standard is applicable to nickel and nickel alloy strip and foil used in
industrial fields such as instrumentation, communication and electronics.
2 Normative references
The following referenced documents are indispensable for the application of
this document. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any
amendments) applies.
GB/T 228.1-2010, Metallic materials - Tensile testing - Part 1: Method of test
at room temperature
GB/T 232, Metallic materials - Bend test
GB/T 4156, Metallic materials - Sheet and strip - Erichsen cupping test
GB/T 4340.1, Metallic materials - Vickers hardness test - Part 1: Test method
GB/T 5235, Wrought nickel and nickel alloys - Chemical composition and
forms of wrought products
GB/T 6394, Metal - Methods for estimating the average grain size
GB/T 8170, Rules of rounding off for numerical values & expression and
judgement of limiting values
GB/T 8647 (all parts), The methods for chemical analysis of nickel
GB/T 8888, Wrought heavy non-ferrous metal products-packing, marking,
transportation, storing and certificate of quality
YS/T 325 (all parts), Methods for chemical analysis of nickel-copper alloy
4.4.2 Bending test
It may conduct bending test for the product. There shall be no cracks on the
outer surface of the strip after bending. The diameter of the bending indenter
and the bending angle are negotiated by the supplier and the purchaser.
4.5 Grain size
It may conduct grain size testing for the product. Test results are reported as
measured values.
4.6 Surface quality
The surface of the product shall be smooth and clean, without defects that affect
the use.
5 Test methods
5.1 Chemical composition
The chemical composition analysis method of the product is carried out in
accordance with the provisions of GB/T 8647 and YS/T 325.
5.2 Dimensions and allowable deviation
The dimensions of the product and its allowable deviation are measured with
corresponding precision measuring tools. The thickness is measured at a
distance not less than 100mm from the end and not less than 5mm from the
edge (products with a width less than 50mm are measured at a distance not
less than 3mm from the edge).
5.3 Mechanical properties
5.3.1 The tensile test of the product is carried out in accordance with the
provisions of GB/T 228.1-2010. Choose P04 sample or P5 sample.
5.3.2 The Vickers hardness test of the product is carried out in accordance with
the provisions of GB/T 4340.1.
5.4 Technique performance
5.4.1 The cupping test of the product is carried out in accordance with the
provisions of GB/T 4156. The punch diameter is 20mm.
5.4.2 The bending test of the product is carried out in accordance with the
provisions of GB/T 232.
the sample is still nonconforming after repeated inspection, the batch of
products shall be rejected. The supplier is allowed to inspect the nonconforming
items on a coil-by- coil basis. Only conforming products are delivered.
6.5.4 When the dimensions, allowable deviations and the surface quality
inspection results are nonconforming, this coil of products shall be rejected.
7 Marks, packaging, transportation, storage and quality
certificate
7.1 Product marks
The following marks (or labels) shall be made on the products that have passed
the inspection:
a) Supplier's name or code;
b) Product designation, specification and state;
c) Product batch number;
d) Reference to this Standard.
7.2 Packaging, transportation, storage and quality certificate
The packaging, transportation, storage and quality certificate of the product
shall meet the requirements of GB/T 8888.
8 Order sheet (or contract)
The order sheet (or contract) for the products listed in this Standard shall
include the following:
a) Product name;
b) Designation, specification and state;
c) Dimensional accuracy;
d) Bending test (when required);
e) Grain size (when required);
f) Weight or number of pieces;
......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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