GB/T 6892-2023 PDF English
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| GB/T 6892-2023 | English | 830 |
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Wrought aluminium and aluminium alloys extruded profiles for general engineering
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| GB/T 6892-2015 | English | 145 |
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Wrought aluminium and aluminium alloys extruded profiles for general engineering
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| GB/T 6892-2006 | English | 150 |
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Wrought aluminium and aluminium alloys extruded profiles for general engineering
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| GB/T 6892-2000 | English | 479 |
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Wrought aluminium and aluminium alloys-Extruded profiles for commercial usage
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| GB/T 6892-1986 | English | RFQ |
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Wrought aluminium and aluminium alloys--Extruded profiles for commercial usage
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GB/T 6892-2023: Wrought aluminium and aluminium alloys extruded profiles for general engineering---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/GBT6892-2023
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77.150.10
CCS H 61
Replacing GB/T 6892-2015
Wrought aluminum and aluminum alloys extruded profiles
for general engineering
Issued on: SEPTEMBER 07, 2023
Implemented on: APRIL 01, 2024
Issued by. State Administration for Market Regulation.
Standardization Administration of PRC.
Table of Contents
Foreword... 3
1 Scope... 6
2 Normative references... 6
3 Terms and definitions... 8
4 Product classification... 8
5 Technical requirements... 17
6 Test methods... 24
7 Inspection rules... 27
8 Marking, packaging, transportation, storage, quality certificate... 33
9 Contents of order form (or contract)... 34
Appendix A (Informative) Guidelines for selection of decorative and general protective
films... 35
Appendix B (Informative) Dimensional measurement method - Three-dimensional
coordinate measuring instrument method... 39
Appendix C (Normative) Test method of pin-type support... 41
Appendix D (Informative) Contents of order form (or contract)... 48
References... 56
Wrought aluminum and aluminum alloys extruded profiles
for general engineering
1 Scope
This document specifies the product classification, technical requirements, test methods,
inspection rules, signs, packaging, transportation, storage, quality certificates and order
forms (or contracts) of wrought aluminum and aluminum alloys extruded profiles for
general engineering.
This document is suitable for aluminum and aluminum alloy profiles for general
engineering (hereinafter referred to as profiles).
2 Normative references
The provisions in following documents become the provisions of this Standard through
reference in this Standard. For the dated documents, only the versions with the dates
indicated are applicable to this document; for the undated documents, only the latest
version (including all the amendments) is applicable to this standard.
GB/T 231.1 Metallic materials - Brinell hardness test - Part 1.Test method
GB/T 232 Metallic materials - Bend test
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 5237.2 Wrought aluminium alloy extruded profiles for architecture - Part 2.
Anodized profiles
GB/T 5237.3 Wrought aluminium alloy extruded profiles for architecture - Part 3.
Electrophoretic coating profiles
GB/T 5237.4 Wrought aluminium alloy extruded profiles for architecture - Part 4.
Powder coating profiles
GB/T 5237.5 Wrought aluminium alloy extruded profiles for architecture - Part 5.
Paint coating profiles
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 8013 (all parts) Anodic oxide coatings and organic polymer coatings on
aluminium and its alloys
GB/T 8170 Rules of rounding off for numerical values & expression and judgement
of limiting values
GB/T 12966 The methods for determining aluminium and aluminium alloys
conductivity using eddy current
GB/T 12967.3 Test methods for anodic oxidation coatings and organic polymer
coatings on aluminium and aluminium alloys - Part 3.Salt spray test
GB/T 14846 Tolerances on dimensions and form of aluminium and aluminium alloy
extruded profiles
GB/T 16865 Test pieces and method for tensile test for wrought aluminium and
magnesium alloys products
GB/T 17432 Methods for 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 26492.5 Defects for wrought aluminium and aluminium alloys ingots and
products - Part 5.Defects for tubes, rods or bars, profiles, wires
GB/T 32790 Methods for evaluating the weld quality of seam welds in aluminium
and aluminium alloy extrusion
GB/T 34487 Shear testing method of aluminium alloy products for structural
members
GB/T 37616 Aluminium alloys extruded profiles-axial force controlled fatigue
testing method
GB/T 42914 Test method for fracture toughness of aluminium alloy products
GB/T 42916 Identification marking of aluminium and aluminium alloy products
JJG 475 Verification regulation of electronic universal testing machine
YS/T 1630.1-2023 Aviation aluminum alloy pipe, rod, profile - Part 1.7050
aluminum alloy profile
ISO 15614-2 Specification and qualification of welding procedures for metallic
materials - Welding procedure test - Part 2.Arc welding of aluminum and its alloys
ISO 25239-4 Friction stir welding - Aluminum - Part 4.Specification and
qualification of welding procedures
3 Terms and definitions
The terms and definitions, which are defined in GB/T 8005.1 and GB/T 26492.5, are
applicable to this document.
4 Product classification
4.1 Composition category
The profile is divided into category I and II, according to the composition, as shown in
Table 1.
4.2 Designation, state, size specifications
The designation, state, size specifications of the profile shall meet the requirements of
Table 2.When the purchaser needs other designations, state, size specifications, the
supplier and purchaser shall determine it through negotiation, with reference to the
"State and performance registration form wrought aluminum and aluminum alloy
products", meanwhile indicate in the order form (or contract).
4.4 Marking and examples
4.4.1 The profile mark which is not subject to surface treatment is represented in the
order of product names, this document number, designation, state, cross-section code,
fixed length. The marking examples are as follows.
Example.
The profile which has a designation 6063, T5 state, cross-section code YST01100001, length
4000 mm, is marked as follows.
Profile GB/T 6892-6063T5-YST01100001 × 4000
4.4.2 The profile mark which is subject to surface treatment is represented in the order
of product name and color (or color code), film code, this document number,
designation, state, cross-section code, fixed length. The marking examples are as
follows.
Example 1.
The silver white profile which has a film code AA20, designation 6063, T5 state, cross-section
code YST01100001, length 4000 mm, is marked as follows.
5 Technical requirements
The technical requirements of the profile shall meet the requirements of Table 4.When
the purchaser has special requirements, the supplier and purchaser shall determine it,
through negotiation with reference to the "Registration form of state and performance
of wrought aluminum and aluminum alloy product"; meanwhile indicate it in the profile
drawing and order form (or contract).
6 Test methods
The test methods for profiles shall comply with the requirements in Table 10.If the
purchaser has special requirements for the test method, it shall be determined through
negotiation between the supplier and the purchaser, meanwhile noted in the order form
(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 form (or contract),
meanwhile 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 form (or contract), it shall be submitted to
the supplier in writing, to be resolved through negotiation between the supplier and the
buyer. Objections related to surface quality and dimensional deviation shall be raised,
within 1 month from the date of receipt of the product. Objections 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 an organization, as recognized by both the supplier and
the buyer; sampling can be done jointly at the buyer's premises.
7.2 Group-batching
Products shall be submitted for acceptance in batches. Each batch shall be composed of
products of the same designation, status, size specifications, film layer code, surface
treatment process. When the purchaser requires group-batching according to melting
number and heat treatment furnaces, this shall be noted in the order form (or contract).
7.3 Weighting
Products shall be checked by weight.
7.4 Inspection items and process assurance items
Where there are no special requirements specified in the order form (or contract), the
product exit-factory inspection items, periodic inspection items, process assurance
items shall comply with the provisions of Table 12.
7.5 Sampling
The sampling of profiles shall comply with the requirements in Table 13.
7.6 Judgment of inspection results
7.6.1 Chemical composition
When the chemical composition of any specimen fails, if the melting order of the profile
can be distinguished, the melting order profile represented by the specimen will be
judged to be unqualified; other melting order profiles will be inspected in sequence, the
qualified ones will be delivered. If the melting order cannot be distinguished, the batch
of profiles is deemed to be unqualified.
7.6.2 Size deviation
If the size deviation of any specimen fails, the batch of profiles will be deemed
unqualified. However, suppliers are allowed to inspect one by one; those that pass the
standard will be delivered.
7.6.3 Tensile mechanical properties at room temperature, compression properties,
bending properties, shear properties, fatigue properties, pin-type support, stress
corrosion resistance, spalling corrosion resistance, intergranular corrosion
sensitivity, salt spray corrosion resistance, welding performance
7.6.3.1 If any specimen fails, the batch (or heat treatment furnace number) of profiles
will be deemed to be unqualified OR shall be implemented in accordance with 7.6.3.2.
7.6.3.2 If the heat treatment furnace number can be distinguished for the profile, it shall
take double quantity of specimens from the heat treatment furnace number, which is
represented by the specimen, to conduct repeated tests on the unqualified item. If the
heat treatment furnace number cannot be distinguished, it shall take double quantity of
specimens from the batch of profiles again, to repeat the test on the unqualified item
(including the profile represented by the unqualified specimen taken for the first time).
If all repeated test results are qualified, the batch (or heat treatment furnace number) of
profiles will be deemed qualified. If there are still unqualified samples in the repeated
test results, the batch (or heat treatment furnace number) of profiles will be deemed
unqualified. After agreement between the supplier and the buyer, the supplier is allowed
to inspect one by one; those that pass the test will be delivered or implemented in
accordance with 7.6.3.3.
7.6.3.3 After repeated heat treatment, the supplier shall inspect all exit-factory
inspection items listed in Table 12 according to the furnace number, except chemical
composition, size deviation, film layer performance, appearance quality. The sampling
quantity shall be as per Table 14.When all inspection results are qualified, the batch of
profiles is deemed to be qualified; otherwise, the batch of profiles is deemed to be
unqualified.
7.6.4 Plane strain fracture toughness
If the plane strain fracture toughness KIc value or "batch release KQ" value of any
specimen fails, the batch (or heat treatment furnace number) of the profile will be
judged to be unqualified or shall be implemented in accordance with 7.6.3.2.
7.6.5 Conductivity
If the conductivity of any specimen fails, follow 7.6.3.2.
7.6.6 Matching relationship between electrical conductivity and mechanical
properties
If the matching relationship between the electrical conductivity and mechanical
properties of any specimen fails, the supplier will inspect each piece one by one; those
that pass will be delivered. OR it is judged according to the test results of stress
corrosion resistance, or implemented in accordance with 7.6.3.2.
7.6.7 Ultrasonic flaw detection acceptance level
If the ultrasonic flaw detection acceptance level of any specimen fails, the profile will
be deemed unqualified.
7.6.8 Welding performance of weld
When the welding performance of the weld is unqualified, it is allowed to cut off a
section from the extrusion front end of the hollow profile, to repeat the test, until it is
qualified. Then other hollow profiles in the batch shall be cut according to the maximum
length of the defect distribution of the inspected profile or one by one; the qualified
products will be delivered.
7.6.9 Macrostructure
When the macrostructure of any specimen fails, the judgment shall be made as follows.
a) If the profile fails due to metallurgical defects, such as cracks, bright grains, non-
metallic inclusions, foreign metal inclusions, white spots, primary crystals, oxide
films, the batch of profiles will be deemed unqualified. However, upon agreement
between the supplier and purchaser, the supplier can inspect one by one and
deliver the qualified products.
b) When unqualified due to layering, tail shrinkage, or coarse grain rings, it is
allowed to cut off a section from the extrusion tail end of the profile, to repeat the
test until it is qualified. Then other profiles in the batch shall be tail cut according
to the maximum length of the defect distribution of the inspected profile or one
by one; the qualified products will be delivered.
c) When the fracture structure of any specimen fails, if the melting order can be
distinguished, the melting order represented by the specimen will be judged to be
unqualified; the other melting order profiles will be inspected in sequence, the
qualified products will be delivered. If the melting orders cannot be distinguished,
the batch of profiles is deemed to be unqualified.
7.6.10 Microstructure
If the microstructure of any specimen is unqualified, the batch (or heat treatment
furnace number) of profiles will be deemed unqualified.
7.6.11 Film performance
When the film performance of any profile fails to meet the standards, it shall be judged
according to the implementation standards selected in Chapter 5.
7.6.12 Appearance quality
If the appearance quality of any profile is unqualified, the profile will be deemed
unqualified.
8 Marking, packaging, transportation, storage, quality
certificate
8.1 Marking
8.1.1 Product marking
Product markings shall comply with the requirements of GB/T 42916.
8.1.2 Packing box markings
The packaging box mark of the profile shall comply with the requirements of GB/T
3199.
8.2 Packaging, transportation, storage
The profiles shall not be greased or packed; other aspects shall comply with the
requirements of GB/T 3199.If the buyer needs applying grease, packing or using other
packing means and methods different from GB/T 3199, it shall be determined through
negotiation between the supplier and the purchaser. Meanwhile it shall be indicated in
the order form (or contract). The transportation and storage of profiles shall comply
with the requirements of GB/T 3199.
8.3 Quality certificate
Each batch of profiles shall be accompanied by a product quality certificate, which shall
indicate.
a) Name of supplier;
b) Product name;
c) Designations, status, size specifications (or model);
d) Code, color or color code of the surface-treated profile film layer;
e) Product batch number or production date;
f) Net weight or number of pieces;
g) This document number;
h) Various analysis and inspection results and inspection stamps from the supplier’s
quality inspection department;
i) Packaging date (or exit-factory date).
9 Contents of order form (or contract)
The order form (or contract) for the materials listed in this document should include the
contents of Appendix D.
Appendix A
(Informative)
Guidelines for selection of decorative and general protective films
A.1 Overview
The main function of the surface treatment profile film is decoration and protection.
The performance degradation of the film in the use environment must not cause
corrosion of the product and affect the appearance of the product. Therefore, before
selecting the type of film, first determine the type of environment in the use area. The
type of film layer selected may be different for different environmental types. There are
many classification methods for environmental types in relevant domestic and foreign
standards. For example, in GB/T 15957, it is divided into 4 categories. industrial
atmosphere, urban atmosphere, marine atmosphere, rural atmosphere, etc. according to
the atmosphere type. It is divided into 3 categories according to humidity. humid
environment, ordinary environment, dry environment. In ISO 9223, it is divided into 6
categories of outdoor environment and indoor environment, according to corrosive
conditions. The specific category is as shown in Table A.1.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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