GB/T 3880.1-2023 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 3880.1-2023 | English | 560 |
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Wrought aluminium and aluminium alloy plates, sheets and strips for general engineering - Part 1: Technical conditions of delivery
| Valid |
| GB/T 3880.1-2012 | English | 125 |
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Wrought aluminium and aluminium alloy plates, sheets and strips for general engineering -- Part 1: Technical conditions of delivery
| Obsolete |
| GB/T 3880.1-2006 | English | 639 |
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Wrought aluminium and aluminium alloy plates, sheets and strips for general engineering -- Part 1: Technical conditions of delivery
| Obsolete |
| GB/T 3880-1997 | English | 959 |
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Aluminium and aluminium alloy rolled sheet
| Obsolete |
| GB 3880-1983 | English | 359 |
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3 days
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Aluminum and aluminum alloy sheet
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GB/T 3880.1-2023: Wrought aluminium and aluminium alloy plates, sheets and strips for general engineering - Part 1: Technical conditions of delivery
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT3880.1-2023
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77.150.10
CCS H 61
Replacing GB/T 3880.1-2012
Wrought aluminium and aluminium alloy plates, sheets and
strips for general engineering - Part 1.Technical conditions
of delivery
Issued on: SEPTEMBER 07, 2023
Implemented on: APRIL 01, 2024
Issued by. Condition Administration for Market Regulation;
Standardization Administration of the People's Republic of China.
Table of Contents
Foreword... 3
Introduction... 7
1 Scope... 8
2 Normative references... 8
3 Terms and definitions... 10
4 Product classification... 10
5 Technical requirements... 25
6 Test methods... 31
7 Inspection rules... 33
8 Marks, packaging, transportation, storage and quality certificate... 42
9 Order sheet (or contract) content... 43
Annex A (informative) Online detection method of sheet and strip surface defects.. 44
Bibliography... 47
1 Scope
This document specifies the product classification, technical requirements, test methods,
inspection rules, marking, packaging, transportation, storage and quality certificate and
order sheet (or contract) content for wrought aluminium and aluminium alloy plates,
sheets and strips for general engineering.
This document applies to general engineering aluminum and aluminum alloy hot-rolled
or cold-rolled plates (hereinafter referred to as "plates") and sheets and strips
(hereinafter referred to as "sheets and strips").
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 229, Metallic materials -- Charpy pendulum impact test method
GB/T 230.1, Metallic materials -- Rockwell hardness test -- Part 1.Test method
GB/T 231.1, Metallic materials -- Brinell hardness test -- Part 1.Test method
GB/T 232, Metallic materials -- Bend test
GB/T 3075, Metallic materials -- Fatigue testing -- Axial force-controlled method
GB/T 3190, Chemical composition of wrought aluminium and aluminium alloys
GB/T 3199, Wrought aluminium and aluminium alloy products -- Packing, marking,
transporting and storing
GB/T 3246.1, Inspection method for structure of wrought aluminum and aluminum
alloy products -- Part 1.Inspection method for microstructure
GB/T 3246.2, Inspection method for structure of wrought aluminum and aluminum
alloy products -- Part 2.Inspection method for macrostructure
GB/T 3251, Compression test method for aluminium and aluminium alloy products
GB/T 3880.2, Wrought aluminium and aluminium alloy plates, sheets and strips for
general engineering -- Part 2.Mechanical properties
GB/T 3880.3, Wrought aluminium and aluminium alloy plates, sheets and strips for
general engineering -- Part 3.Tolerances on forms and dimensions
GB/T 4340.1, Metallic materials -- Vickers hardness test -- Part 1.Test method
GB/T 6398, Metallic materials -- Fatigue testing -- Fatigue crack growth method
GB/T 6519, Ultrasonic inspection of wrought aluminium and magnesium alloy
products
GB/T 7998-2023, Method for evaluating the susceptibility to intergranular
corrosion of aluminum alloys
GB/T 7999, Optical emission spectrometric analysis method of aluminum and
aluminum alloys
GB/T 8005.1, Aluminium and aluminium alloy terms and definitions -- Part 1.
Product and method of processing and treatment
GB/T 8170, Rules of rounding off for numerical values and expression and
judgement of limiting values
GB/T 12966, The methods for determining aluminium and aluminium alloys
conductivity using eddy current
GB/T 16865, Test pieces and methods for tensile test for wrought aluminium,
magnesium and their alloy products
GB/T 17432, Methods of sampling for analyzing the chemical composition of
wrought aluminum and aluminum alloys
GB/T 20975 (all parts), Methods for chemical analysis of aluminium and aluminium
alloys
GB/T 22639, Test method of exfoliation corrosion for aluminium alloy products
GB/T 22640, Test method for determining susceptibility to stress corrosion cracking
of aluminum alloys
GB/T 26492.3, Defects of wrought aluminium and aluminium alloys ingots and
products -- Part 3.Defects for plates, sheets and strips
GB/T 42914, Test method for fracture toughness of aluminium alloy products
GB/T 42916, Identification marking of aluminium and aluminium alloy products
YS/T 1629.1-2023, Aluminum alloy plates for aviation - Part 1.7050T7451 plates
YS/T 1634, Residual stress evaluation method for aluminum and aluminum alloy
products
3 Terms and definitions
For the purposes of this document, the terms and definitions defined in GB/T 8005.1,
GB/T 26492.3 apply.
4 Product classification
4.1 Designation, condition, size specifications and blank opening method
The designation, condition, thickness and blank opening method of the product shall
comply with the requirements in Table 1.The width and length of the plate, the width
of the sheet and strip, and the inner diameter of the roll shall comply with the
requirements in Table 2.If the demander has requirements for other designations,
conditions, dimensions, or blank opening methods, the supplier and the purchaser shall
negotiate and determine with reference to the "Registration sheet for deformed
aluminum and aluminum alloy product condition and performance " and indicate in the
order sheet (or contract).
5 Technical requirements
The technical requirements of the product shall comply with the provisions of Table 3.
When the purchaser has special requirements, the supplier and the purchaser shall
negotiate and determine with reference to the "Registration sheet for deformed
aluminum and aluminum alloy product condition and performance" and indicate in the
order sheet (or contract).
6 Test methods
The test method of the product shall comply with the provisions of Table 9.When the
purchaser has special requirements for the test method, it shall be determined through
negotiation between the supplier and the purchaser, and shall be noted in the order sheet
(or contract).
7 Inspection rules
7.1 Inspection and acceptance
7.1.1 The product shall be inspected by the supplier to ensure that the product quality
complies with the provisions of this document and the order sheet (or contract), and a
quality certificate shall be filled out.
7.1.2 The purchaser shall inspect the received products in accordance with the
provisions of this document. If the inspection results are inconsistent with the
provisions of this document and the order sheet (or contract), a written request shall be
submitted to the supplier for negotiation between the supplier and the purchaser.
Objections related to surface quality and dimensional deviations shall be raised within
1 month from the date of receipt of the product. Objections related to other performance
shall be raised within 3 months from the date of receipt of the product. If arbitration is
needed, it can be entrusted to a unit recognized by both the supplier and the purchaser,
and sampling can be done jointly by the purchaser.
7.2 Batching
Products shall be submitted for acceptance in batches. Each batch shall be composed of
products of the same designation, condition, size specifications and blank opening
method. There is no limit on batch weight. If the purchaser requires batches based on
melting times and heat treatment heats (or continuous heat treatment heats); or if there
are requirements for batch weight, this shall be determined through negotiation between
the supplier and the purchaser and noted in the order sheet (or contract).
7.6 Judgment of test results
7.6.1 Chemical composition
When the chemical composition of any specimen fails, if the product can distinguish
the melting order, the melting order represented by the sample will be deemed to be
unqualified. Other melts are inspected in sequence. Delivery to those who pass the test.
If the melting times cannot be distinguished, the batch will be deemed unqualified.
7.6.2 Size deviation
When the size deviation of any plate fails, the supplier is allowed to inspect the finished
products one by one. Delivery to those who pass the test. If the size deviation of any
sheet and strip fails, the roll will be deemed unqualified.
7.6.3 Covering rate
If the covering rate of any specimen fails, double the number of specimens shall be
taken from the batch of products for repeated testing. If all repeated test results are
qualified, the batch of products will be deemed qualified. If the repeated test results are
still unqualified, the product represented by the specimen will be deemed to be
unqualified. Suppliers are allowed to inspect finished products piece by piece (roll).
Delivery to those who pass the test.
7.6.4 Tensile mechanical properties, compression properties, impact toughness,
bending properties, fatigue properties, residual stress, stress corrosion resistance,
exfoliation corrosion resistance, intergranular corrosion sensitivity
7.6.4.1 When any specimen fails to pass the test, the product of this batch (or heat
treatment heat) will be deemed to be unqualified or shall be subject to 7.6.4.2.
7.6.4.2 If the heat treatment heat of the product can be distinguished, double the number
of specimens shall be taken from the heat treatment heat represented by the specimen
for repeated testing. If the heat treatment heats cannot be distinguished, double the
number of specimens shall be taken from the batch of products for repeated testing
(including products represented by unqualified samples taken for the first time). If the
repeated test results are all qualified, the product of this batch (or heat treatment heat)
will be deemed qualified. If the specimen performance is still unqualified in the
repeated test results, the product of this batch (or heat treatment heat) will be deemed
to be unqualified. Upon agreement between the supplier and the purchaser, the supplier
is allowed to inspect the finished products sheet by sheet (roll). Delivery to qualified
candidates may be carried out according to 7.6.4.3.
7.6.4.3 After repeated heat treatment, the supplier shall inspect all exit-factory
inspection items in Table 10 according to the heat, except chemical composition, size
deviation, coating layer and appearance quality. The sampling quantity is according to
Table 11.When all inspection results are qualified, the batch of products is deemed to
be qualified; otherwise, the batch of products is deemed to be unqualified.
7.6.5 Fracture toughness
7.6.5.1 If the plane strain fracture toughness KIc value of any specimen fails or the
"batch release KQ" value does not meet the requirements, the product of this batch (or
heat treatment heat) will be judged to be unqualified or shall be implemented according
to 7.6.4.2.
7.6.5.2 If the plane stress fracture toughness of any sample fails, the product of this
batch (or heat treatment heat) shall be deemed to be unqualified or shall be implemented
in accordance with 7.6.4.2.
7.6.6 Conductivity
7.6.6.1 When the conductivity of any specimen blank fails to meet the standard, proceed
according to 7.6.4.2.
7.6.6.2 If the conductivity uniformity of any product fails, the batch will be deemed
unqualified.
7.6.7 Matching relationship between electrical conductivity and mechanical
properties
When the matching relationship between the electrical conductivity and mechanical
properties of any specimen blank is unqualified, the judgment shall be based on the
stress corrosion resistance test results.
7.6.8 Ultrasonic flaw detection acceptance level
If the ultrasonic flaw detection acceptance level of any plate fails, the finished product
will be deemed unqualified.
7.6.9 Macrostructure
When the macrostructure of any sample fails, the judgment shall be as follows.
a) If the product fails due to cracks or delamination defects, the supplier can inspect
the finished products one by one. Delivery to those who pass the inspection;
b) When the grain size level and fracture structure of any specimen are unqualified,
if the melting order can be distinguished, the melting order will be deemed to be
unqualified. Other melts are inspected in sequence. Delivery those who pass the
inspection. If the melting times cannot be distinguished, the batch will be deemed
unqualified.
7.6.10 Microstructure
If the microstructure of any specimen fails, the batch (or heat treatment heat) is deemed
to be unqualified.
7.6.11 Appearance quality
If the appearance quality of any product fails, the finished product sheet (roll) will be
deemed to be unqualified.
8 Marks, packaging, transportation, storage and quality
certificate
8.1 Marks
8.2 Packaging, transportation, storage
The plates are packed with padding paper. When the purchaser requires not to use paper,
oil paper or film, it shall be clearly stated in the order sheet (or contract). Others shall
be carried out according to the provisions of GB/T 3199.When the purchaser needs
sheets and strips with sleeves, he shall indicate the sleeve material in the order sheet (or
contract).
8.3 Quality certificate
Each batch of products shall be accompanied by a product quality certificate stating.
a) Name of supplier;
b) Product name;
c) Designation, condition and size specifications;
d) Product batch number;
e) Net weight or number of boxes (sheets) and rolls;
f) Reference to this document;
g) Various analysis and inspection results and inspection stamps from the supplier’s
quality inspection department;
h) Packaging date (or exit-factory date).
9 Order sheet (or contract) content
The order sheet (or contract) for the products listed in this document shall include the
following content.
a) Product name.
b) Designation.
c) Condition.
d) Dimensions.
e) Weight or number of sheets.
f) Other special requirements.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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