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GB/T 6892-2015 (GB/T6892-2015)

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Newer version: GB/T 6892-2023

GB/T 6892-2015: PDF in English (GBT 6892-2015)

GB/T 6892-2015
GB
NATIONAL STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
ICS 77.150.10
H 61
Replacing GB/T 6892-2005
Wrought aluminum and aluminum
alloys extruded profiles for general engineering
ISSUED ON. DECEMBER 10, 2015
IMPLEMENTED ON. JULY 01, 2016
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine of the People's Republic of China;
Standardization Administration of the People's Republic of China.
Table of contents
Foreword ... 3 
1 Scope ... 5 
2 Normative references ... 5 
3 Requirements ... 6 
4 Test method ... 1 
5 Inspection rules ... 4 
6 Marking, packaging, transportation, storage and quality certificate ... 10 
7 Order (or contract) content ... 11 
Appendix A (Informative) Surface treatment profiles selection guide ... 12 
Appendix B (Informative) Information to be contained in profile order (or
contract) ... 16 
References ... 25 
Foreword
This standard was drafted in accordance with the rules given in GB/T
1.1-2009.
This standard replaces GB/T 6892-2006 “Wrought aluminum and aluminum
alloys extruded profiles for general engineering”. As compared with GB/T
6892-2006, the main technical changes of this standard are as follows.
- DELETE the vehicle profiles;
- DELETE the original appendix A, Appendix B and Appendix C;
- ADD the 6008, 6360, 7021 alloy;
- ADD the H111 state of 2014, 2014A, 2024, and 6082 alloys;
- MODIFY the mechanical properties of 2017 alloy;
- ADD the 0 and H111 state of 5005 and 5005A alloy;
- ADD the T1 state of 6005 alloy;
- MODIFY the performance of 6005 and 6005A alloy under T5 state;
- ADD the T66 state of the 6063 and 6060 alloy;
- In respect of the profile mechanical property limit value of T4 state of 2A11
and 2A12 alloy, the T5 state of 6261 alloy, and the T6 state of 7A04 alloy,
SPECIFY the maximum wall thickness of the applicable profile;
- ADD the surface treatment profiles of anodizing, anodizing +
electrophoretic coating, powder spraying and liquid spraying.
This standard was proposed by China Nonferrous Metals Industry Association.
This standard shall be under the jurisdiction of the National Nonferrous Metals
Standardization Committee (SAC/TC 243).
The responsible drafting organizations of this standard. Southwest Aluminum
(Group) Co., Ltd., Nonferrous Metals Technology and Economic Research
Institute, Northeast Light Alloy Co., Ltd., Guangdong Haomei Aluminum Co.,
Ltd., Guangdong Jianmei Aluminum Profile Factory (Group) Co., Ltd.,
Guangdong Xingfa Aluminum Co., Ltd., Longkou Jungle Aluminum Co., Ltd.,
Shandong YANCOHLA Light Alloy Co., Ltd., Northwest Aluminum Processing
Wrought aluminum and aluminum
alloys extruded profiles for general engineering
1 Scope
This standard specifies the requirements, test methods, inspection rules and
marking, packaging, transportation, storage and quality certificates and orders
(or contracts) for wrought aluminum and aluminum alloys extruded profiles for
general engineering.
This standard applies to wrought aluminum and aluminum alloys extruded
profiles for general engineering (hereinafter referred to as profiles).
2 Normative references
The following documents are essential to the application of this document. 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) are applicable to this Standard.
GB/T 231 (All parts) Metallic materials - Brinell hardness test
GB/T 3190 Wrought aluminum and aluminum alloy - Chemical composition
GB/T 3199 Wrought aluminum and aluminum 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 6519 Process of ultrasonic inspection of wrought aluminum alloy
products
GB/T 7999 Optical emission spectrometric analysis method of aluminum
and aluminum alloys
GB/T 8013 (All parts) Anodic oxide coating and organic polymer coatings on
aluminum and its alloys
GB/T 8170 Rules for rounding off for numerical values & expression and
judgment of limiting values
GB/T 12966 The method of determining aluminum alloys conductivity using
eddy current
GB/T 14846 Tolerances on dimensions and form of aluminum and aluminum
alloy extruded profiles
GB/T 15970.7 Corrosion of metals and alloys - Stress corrosion testing -
Part 7. Slow strain rate testing
GB/T 16865 Test pieces and method for tensile test for wrought aluminum
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 aluminum and
aluminum alloys
GB/T 22639 Test method for exfoliation corrosion for wrought aluminum and
aluminum alloys
GB/T 22640 Test method of C-ring sample to stress-corrosion cracking for
wrought aluminum and aluminum alloys products
YS/T 730 Wood grain profiles of aluminum alloys used for architecture
YS/T 873 Specification of polishing coating on aluminum alloy
ISO 9223 Corrosion of metals and alloys - Corrosively of atmospheres -
Classification, determination and estimation
3 Requirements
3.1 Product classification
3.1.1 Profiles are divided into two categories in accordance with their
composition, as shown in Table 1.
Table 1 -- Profiles classification by composition
Classification by
composition Definition Typical designation
Category I 1 x x x series, 3 x x x series, 5 x x x series, 6 x x x series and the 5 x x
1060, 1350, 1050A, 1100, 1200, 3A21, 3003,
3103, 5A02, 5A03, 5005, 5005A, 5051A, 5251,
Example 4.
The fixed length profile of yellow, film code GA40, 6063 designation, T5 state,
cross-section code YST00010004, and length 4000 mm is marked as.
Profile yellow GA40 GB/T 6892-6063T5- YST00010004 × 4000
Example 5.
The fixed length profile of red, film code LB20, 6063 designation, T5 state,
cross-section code YST00010004, and length 4000 mm is marked as.
Profile red LB20 GB/T 6892-6063T5- YST00010004 × 4000
Example 6.
The fixed length profile of green, film code LF4-65, 6063 designation, T5 state,
cross-section code YST00010004, and length 4000 mm is marked as.
Profiles green LF4-65 GB/T 6892-6063T5- YST00010004 × 4000
3.2 Chemical composition
The profiles of designation 5051A, 6008, 6360, 6261, 6081, and 7178 shall
comply with the requirements of Table 3, AND the chemical composition of
other designations shall comply with GB/T 3190.
damage the internal structure of the profile that extruded by spider die or
divergent die).
3.10.6 The depth of the coarse crystal ring shall be agreed upon by both the
supplier and the purchaser, AND be indicated in the drawing or order (or
contract).
3.11 Microstructure
The microstructure of the profile is not allowed to over-burn.
3.12 Film properties
As for the surface-treated profiles, the film performance shall comply with the
requirements of Table 8.
Pulverizati
on degree Grade 0 To be negotiated by supplier and purchaser
Discolorati
on degree To be negotiated by supplier and purchaser
UV resistance
When the purchaser has requirement for
the UV resistance (only applicable to the
anodic oxidization tinted profiles), the
supplier and the purchaser will negotiate
the test conditions and the performance
requirements, AND indicate it in the order
(or contract).
When the purchaser has requirement for the UV resistance, the supplier and the purchaser will negotiate
the test conditions and the performance requirements, AND indicate it in the order (or contract).
Natural weather
fastness
When the purchaser has requirement for
the natural weather fastness (only
applicable to the anodic oxidization tinted
profiles), the supplier and the purchaser will
negotiate the test conditions and the
performance requirements, AND indicate it
in the order (or contract).
When the purchaser has requirement for the natural weather fastness, the supplier and the purchaser will
negotiate the test conditions and the performance requirements, AND indicate it in the order (or contract).
Appearance quality
The surface shall not have such defects as
electric burn, oxide film peeling off, etc.,
which may affect use; BUT it is allowed for
local film free within 80 mm to the profile
end
The color and gloss shall be uniform and
consistent. It is not allowed for such defects as
wrinkle, blister, flow mark, pit, inclusion,
clamminess, and film peeling off, etc. The
specific appearance requirements may also be
negotiated by the supplier and the purchaser
though standard sample.
It is not allowed for such defects as excessive
roughness, flow mark, blister, inclusion, depression,
dark ...
......
 
(Above excerpt was released on 2017-05-21, modified on 2021-06-07, translated/reviewed by: Wayne Zheng et al.)
Source: https://www.chinesestandard.net/PDF.aspx/GBT6892-2015