GB/T 11376-2020 PDF English
US$330.00 · In stock · Download in 9 secondsGB/T 11376-2020: Metallic and other inorganic coatings--Phosphate conversion coating of metals Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedureStatus: Valid GB/T 11376: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 11376-2020 | English | 330 |
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Metallic and other inorganic coatings--Phosphate conversion coating of metals
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| GB/T 11376-1997 | English | 115 |
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Phosphate conversion coatings for metals
| Obsolete |
| GB/T 11376-1989 | English | RFQ |
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Phosphate conversion coatings for metals
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GB/T 11376-2020: Metallic and other inorganic coatings--Phosphate conversion coating of metals---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/GBT11376-2020
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 25.220.20
A 29
Replacing GB/T 11376-1997
Metallic and other inorganic coatings - Phosphate
conversion coating of metals
(ISO 9717.2017, MOD)
Issued on. JUNE 02, 2020
Implemented on. APRIL 01, 2021
Issued by. State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword... 3
Introduction... 5
1 Scope... 6
2 Normative references... 6
3 Terms and definitions... 7
4 Information to be supplied by the purchaser to the processor... 7
5 Phosphate conversion coating types and designation... 8
5.1 Phosphate conversion coating types... 8
5.2 Designation of phosphate conversion coating... 8
6 Phosphate conversion coating... 9
6.1 Appearance... 9
6.2 Coating mass per unit area... 9
6.3 Post treatments... 10
6.4 Phosphate conversion coating thickness... 10
7 Heat treatment... 10
Appendix A (Informative) General information... 11
Appendix B (Informative) Identification of phosphate conversion coating... 15
Appendix C (Normative) Determination of phosphate conversion coating resistance to
neutral salt spray test... 17
References... 20
Foreword
This Standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This Standard replaces GB/T 11376-1997 Phosphate conversion coatings for metals.
Compared with GB/T 11376-1997, the major changes of this Standard are as follows.
— MODIFY “Normative references” (see Chapter 2; Chapter 2 of the 1997 edition);
— ADD terms and definitions (see Chapter 3);
— MODIFY “Information to be supplied by the purchaser to the processor” (see
Chapter 4; Chapter 3 of the 1997 edition);
— MODIFY “Phosphate conversion coating types and designation” (see Chapter 5;
Chapter 4 of the 1997 edition);
— MODIFY “Phosphate conversion coating” (see Chapter 6; Chapter 6 of the 1997
edition);
— MODIFY the appendixes;
— ADD “References”.
This Standard uses the redrafting method to modify and adopt ISO 9717.2017 Metallic
and other inorganic coatings - Phosphate conversion coating of metals.
The technical differences between this Standard and ISO 9717.2017 and the reasons are
as follows.
— With regard to the normative references, this Standard makes technical
adjustments to adapt to the technical conditions of China. The adjustments are
concentrated in Chapter 2 “Normative references”, and the specific adjustments
are as follows.
● Use GB/T 3138 which is equivalent to the international standard to replace ISO
2080 (see Chapter 3);
● Use GB/T 4955 which is equivalent to the international standard to replace ISO
2177 (see 6.4);
● Use GB/T 4956 which is equivalent to the international standard to replace ISO
2178 (see 6.4);
● Use GB/T 9792 which modifies and adopts the international standard to replace
ISO 3892 (see 6.2);
● Use GB/T 10125 which is equivalent to the international standard to replace ISO
9227 (see 6.3);
● Use GB/T 12609 which is equivalent to the international standard to replace ISO
4519 (see Chapter 4);
● Use GB/T 16921 which is equivalent to the international standard to replace ISO
3497 (see 6.4).
This Standard makes the following editorial changes.
— ADJUST the numbers of Appendix A, Appendix B, and Appendix C according to
the order mentioned in the standard text.
This Standard was proposed by China Machinery Industry Federation.
This Standard shall be under the jurisdiction of National Technical Committee on
Metallic and Non-metallic Coating of Standardization Administration of China
(SAC/TC 57).
Drafting organizations of this Standard. Wuhan Research Institute of Materials
Protection, Wuhan Material Protection Surface New Materials Co., Ltd., Zhaoqing
University, Cwb Automotive Electronics Co., Ltd., Wenzhou Ruiming Industrial Co.,
Ltd., Foshan Kefu Technology Co., Ltd.
Main drafters of this Standard. Li Xinli, Zhong Ping, Su Hui, Yi Juan, Wu Xiaosong,
Zeng Huan, Yuan Xing, Xia Jingzhong, Xu Zhaoyu, Tan Wuyong, Lin Juan, Zhou Shuo,
He Dedao, Li Ni, Lu Yang.
The previous version – replaced by this Standard – of the standard is.
— GB/T 11376-1989, GB/T 11376-1997.
1 Scope
This Standard specifies methods for determining the requirements for phosphate
conversion coating.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this
document and are indispensable for its application. For dated references, only the
edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 3138 apply.
ISO and IEC maintain terminological databases for use in standardization at the
following addresses.
4 Information to be supplied by the purchaser to the processor
The following information shall be provided by the purchaser.
5 Phosphate conversion coating types and designation
The designation of the phosphate conversion coating shall consist of the following
information.
6 Phosphate conversion coating
The coating mass is measured in accordance with the procedures specified in GB/T
9792.
The thickness of phosphate conversion coating can be measured according to the
following methods.
7 Heat treatment
Heat treatment after the phosphating is not recommended, because the phosphate layer
will be damaged at a temperature higher than 120 °C.
Appendix A
(Informative)
General information
Phosphate conversion coatings are produced by treatment with solutions, the main
constituents of which are specified 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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