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Position: Chinese Standard in English/GB/T 13912-2020
GB/T 13912-2020   Metallic coatings—Hot dip galvanized coatings on fabricated iron and steel articles—Specifications and test methods (English Version)
Standard No.: GB/T 13912-2020 Status:valid remind me the status change

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Language:English File Format:PDF
Word Count: 8500 words Price(USD):250.0 remind me the price change

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Implemented on:2021-4-1 Delivery: via email in 1 business day
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Standard No.: GB/T 13912-2020
English Name: Metallic coatings—Hot dip galvanized coatings on fabricated iron and steel articles—Specifications and test methods
Chinese Name: 金属覆盖层 钢铁制件热浸镀锌层 技术要求及试验方法
Chinese Classification: A29    Material Protection
Professional Classification: GB    National Standard
ICS Classification: 25.220.40 25.220.40    Metallic coatings 25.220.40
Issued by: AQSIQ and SAMR
Issued on: 2020-06-02
Implemented on: 2021-4-1
Status: valid
Superseding:GB/T 13912-2002 Metallic Coatings-Hot Dip Galvanized Coatings on Fabricated Iron
Language: English
File Format: PDF
Word Count: 8500 words
Price(USD): 250.0
Delivery: via email in 1 business day
1 Scope This standard specifies the specifications and test methods for hot dip galvanized coatings on fabricated iron and steel articles. After-treatment/over-coating of hot dip galvanized articles is not covered in this standard. This standard is applicable to hot dip galvanized coatings (containing not more than 2% of other metals) on fabricated iron and steel articles (including certain castings). It is not applicable to the following: a) sheet, wire and woven or welded mesh products that are continuously hot dip galvanized; b) tube and pipe that are hot dip galvanized in automatic plants; c) hot dip galvanized products (e.g. fasteners) for which specific standards exist and which might include additional requirements or requirements which are different from those of this standard. Note: Individual product standards may incorporate this standard for the coating by quoting its number, or may incorporate it with modifications specific to the product. Different requirements may also be made for galvanized coatings on products intended to meet specific regulatory requirements. 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 470 Zinc ingots (GB/T 470-2008, ISO 752:2004, MOD) GB/T 2828.1 Sampling procedures for inspection by attributes - Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection (GB/T 2828.1-2012, ISO 2859-1:1999, IDT) GB/T 2828.2 Sampling procedures for inspection by attributes - Part 2: Sampling plans indexed by limiting quality (LQ) for isolated lot inspection (GB/T 2828.2-2008, ISO 2859-2:1985, NEQ) GB/T 2828.3 Sampling procedures for inspection by attributes - Part 3: Skip-lot sampling procedures (GB/T 2828.3-2008, ISO 2859-3:2005, IDT) GB/T 4956 Non-magnetic coatings on magnetic substrates - Measurement of coating thickness - Magnetic method (GB/T 4956-2003, ISO 2178:1982, IDT) GB/T 6463 Metallic and other inorganic coatings - Review of methods of measurement of thickness (GB/T 6463-2005, ISO 3882:2003, IDT) GB/T 12334 Metallic and other inorganic coatings - Definitions and conventions concerning the measurement of thickness (GB/T 12334-2001, idt ISO 2064:1996) GB/T 13452.2 Paints and varnishes - Determination of film thickness (GB/T 13452.2-2008, ISO 2808:2007, IDT) GB/T 13825 Metallic coatings - Hot dip galvanized coatings on ferrous materials - Gravimetric determination of the mass per unit area (GB/T 13825-2008, ISO 1460:1992, IDT) GB/T 18253 Steel and steel products - Types of inspection documents (GB/T 18253-2018, ISO 10474: 2013, IDT) ISO 3549 Zinc dust pigments for paints - Specifications and test methods EN 1179 Zinc and zinc alloys - Primary zinc EN 13283 Zinc and zinc alloys - Secondary zinc 3 Terms and definitions For the purposes of this document, the terms and definitions given in GB/T 12334 and the following apply. 3.1 hot dip galvanizing formation of a coating of zinc and/or zinc iron alloys on iron and steel articles by dipping prepared steel or cast iron in a zinc melt 3.2 hot dip galvanized coating coating of zinc and/or zinc iron alloys on iron and steel articles obtained by hot dip galvanizing Note: The term “hot dip galvanized coating” is subsequently referred to as the “coating”. 3.3 coating mass total mass of zinc and/or zinc alloys per area of iron and steel product surface, expressed in g/m2   3.4 coating thickness total thickness of zinc and/or zinc alloys on steel and iron surface, expressed in μm 3.5 significant surface part of the article covered or to be covered by the hot dip galvanized coating and for which the coating is essential for appearance and/or serviceability
Foreword i 1 Scope 2 Normative References 3 Terms and definitions 4 General requirements 4.1 General 4.2 Hot dip galvanizing bath 4.3 Information to be supplied by the purchaser 4.4 Safety 5 Acceptance inspection and sampling 6 Coating requirements 6.1 Appearance 6.2 Thickness 6.3 Renovation 6.4 Adhesion 6.5 Acceptance criteria 7 Certificate of compliance Annex A (Normative) Information to be supplied Annex B (Normative) Safety requirements Annex C (Informative) Corrosion resistance of hot dip galvanized coatings Annex D (Informative) Determination of thickness Annex E (Informative) Renovation of uncoated or damaged areas Bibliography
Referred in GB/T 13912-2020:
*GB/T 470-2008 Zinc ingots
*GB/T 2828.1-2012 Sampling procedures for inspection by attributea-Part1:Sampling schemes indexed by acceptance quality limit(AQL) for lot-by-lot inspection
*GB/T 2828.2-2008 Sampling procedures for inspection by attributes - Part 2: Sampling plans indexed by limiting quality (LQ) for isolated lot inspection
*GB/T 2828.3-2008 Sampling procedures for inspection by attributes - Part 3: Skip-lot sampling procedures
*GB/T 4956-2003 Oon-magnetic coatings on magnetic substrates?Measurement of coating thickness?Magnetic method
*GB/T 6463-2005 Metallic and other inorganic coatings-Review of methods of measurement of thickness
*GB/T 12334-2001 Metallic and other inorganic coatings - Definitions and conventions concerning the measurement of thickness
*GB/T 13452.2-2008 Paints and varnishes - Determination of film thickness
*GB/T 13825-2008 Metallic coatings - Hot dip galvanized coatings on ferrous materials - Gravimetric determination of the mass per unit area
*GB/T 18253-2018 Steel and steel products—Types of inspection documents
GB/T 13912-2020 is referred in:
*GB/T 18164-2020 Specifications of amusement rides wonder wheel category
*GB/T 37613-2019 Embedded channel steel
*NB/T 47007-2018 Air-cooled heat exchangers
*DL/T 1672-2016 Aluminium tube bundles used in indirect air cooling system of thermal power plant
*YB/T 4001.1-2019 Steel bar grating and matching parts Part 1:Steel bar gratings
*GB 50936-2014 Technical Code for Concrete Filled Steel Tubular Structures
*GB/T 42006-2022 Specification for inspection of plateau photovoltaic power generation equipment
*GB/T 18161-2020 Specifications of amusement rides fly tower category
*GB 50051-2013 Code for design of chimneys
*GB/T 18165-2019 Specifications of amusement rides fairy train category
*GB/T 18158-2019 Specifications of amusement rides merry-go-round category
Code of China
Standard
GB/T 13912-2020  Metallic coatings—Hot dip galvanized coatings on fabricated iron and steel articles—Specifications and test methods (English Version)
Standard No.GB/T 13912-2020
Statusvalid
LanguageEnglish
File FormatPDF
Word Count8500 words
Price(USD)250.0
Implemented on2021-4-1
Deliveryvia email in 1 business day
Detail of GB/T 13912-2020
Standard No.
GB/T 13912-2020
English Name
Metallic coatings—Hot dip galvanized coatings on fabricated iron and steel articles—Specifications and test methods
Chinese Name
金属覆盖层 钢铁制件热浸镀锌层 技术要求及试验方法
Chinese Classification
A29
Professional Classification
GB
ICS Classification
Issued by
AQSIQ and SAMR
Issued on
2020-06-02
Implemented on
2021-4-1
Status
valid
Superseded by
Superseded on
Abolished on
Superseding
GB/T 13912-2002 Metallic Coatings-Hot Dip Galvanized Coatings on Fabricated Iron
Language
English
File Format
PDF
Word Count
8500 words
Price(USD)
250.0
Keywords
GB/T 13912-2020, GB 13912-2020, GBT 13912-2020, GB/T13912-2020, GB/T 13912, GB/T13912, GB13912-2020, GB 13912, GB13912, GBT13912-2020, GBT 13912, GBT13912
Introduction of GB/T 13912-2020
1 Scope This standard specifies the specifications and test methods for hot dip galvanized coatings on fabricated iron and steel articles. After-treatment/over-coating of hot dip galvanized articles is not covered in this standard. This standard is applicable to hot dip galvanized coatings (containing not more than 2% of other metals) on fabricated iron and steel articles (including certain castings). It is not applicable to the following: a) sheet, wire and woven or welded mesh products that are continuously hot dip galvanized; b) tube and pipe that are hot dip galvanized in automatic plants; c) hot dip galvanized products (e.g. fasteners) for which specific standards exist and which might include additional requirements or requirements which are different from those of this standard. Note: Individual product standards may incorporate this standard for the coating by quoting its number, or may incorporate it with modifications specific to the product. Different requirements may also be made for galvanized coatings on products intended to meet specific regulatory requirements. 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 470 Zinc ingots (GB/T 470-2008, ISO 752:2004, MOD) GB/T 2828.1 Sampling procedures for inspection by attributes - Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection (GB/T 2828.1-2012, ISO 2859-1:1999, IDT) GB/T 2828.2 Sampling procedures for inspection by attributes - Part 2: Sampling plans indexed by limiting quality (LQ) for isolated lot inspection (GB/T 2828.2-2008, ISO 2859-2:1985, NEQ) GB/T 2828.3 Sampling procedures for inspection by attributes - Part 3: Skip-lot sampling procedures (GB/T 2828.3-2008, ISO 2859-3:2005, IDT) GB/T 4956 Non-magnetic coatings on magnetic substrates - Measurement of coating thickness - Magnetic method (GB/T 4956-2003, ISO 2178:1982, IDT) GB/T 6463 Metallic and other inorganic coatings - Review of methods of measurement of thickness (GB/T 6463-2005, ISO 3882:2003, IDT) GB/T 12334 Metallic and other inorganic coatings - Definitions and conventions concerning the measurement of thickness (GB/T 12334-2001, idt ISO 2064:1996) GB/T 13452.2 Paints and varnishes - Determination of film thickness (GB/T 13452.2-2008, ISO 2808:2007, IDT) GB/T 13825 Metallic coatings - Hot dip galvanized coatings on ferrous materials - Gravimetric determination of the mass per unit area (GB/T 13825-2008, ISO 1460:1992, IDT) GB/T 18253 Steel and steel products - Types of inspection documents (GB/T 18253-2018, ISO 10474: 2013, IDT) ISO 3549 Zinc dust pigments for paints - Specifications and test methods EN 1179 Zinc and zinc alloys - Primary zinc EN 13283 Zinc and zinc alloys - Secondary zinc 3 Terms and definitions For the purposes of this document, the terms and definitions given in GB/T 12334 and the following apply. 3.1 hot dip galvanizing formation of a coating of zinc and/or zinc iron alloys on iron and steel articles by dipping prepared steel or cast iron in a zinc melt 3.2 hot dip galvanized coating coating of zinc and/or zinc iron alloys on iron and steel articles obtained by hot dip galvanizing Note: The term “hot dip galvanized coating” is subsequently referred to as the “coating”. 3.3 coating mass total mass of zinc and/or zinc alloys per area of iron and steel product surface, expressed in g/m2   3.4 coating thickness total thickness of zinc and/or zinc alloys on steel and iron surface, expressed in μm 3.5 significant surface part of the article covered or to be covered by the hot dip galvanized coating and for which the coating is essential for appearance and/or serviceability
Contents of GB/T 13912-2020
Foreword i 1 Scope 2 Normative References 3 Terms and definitions 4 General requirements 4.1 General 4.2 Hot dip galvanizing bath 4.3 Information to be supplied by the purchaser 4.4 Safety 5 Acceptance inspection and sampling 6 Coating requirements 6.1 Appearance 6.2 Thickness 6.3 Renovation 6.4 Adhesion 6.5 Acceptance criteria 7 Certificate of compliance Annex A (Normative) Information to be supplied Annex B (Normative) Safety requirements Annex C (Informative) Corrosion resistance of hot dip galvanized coatings Annex D (Informative) Determination of thickness Annex E (Informative) Renovation of uncoated or damaged areas Bibliography
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Keywords:
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