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GB/T 549-2017 English PDF

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GB/T 549-2017: Electro-welded anchor chains
Status: Valid

GB/T 549: Historical versions

Standard IDUSDBUY PDFLead-DaysStandard Title (Description)Status
GB/T 549-2017799 Add to Cart 5 days Electro-welded anchor chains Valid
GB/T 549-2008RFQ ASK 6 days Electro-welded anchor chains Obsolete
GB/T 549-1996RFQ ASK 6 days Electro-welded anchor chains Obsolete
GB 549-1983999 Add to Cart 6 days Electro-welded anchor chains Obsolete

Similar standards

GB/T 554   GB/T 546   

Basic data

Standard ID: GB/T 549-2017 (GB/T549-2017)
Description (Translated English): Electro-welded anchor chains
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: U21
Classification of International Standard: 47.020.50
Word Count Estimation: 40,435
Date of Issue: 2017-02-28
Date of Implementation: 2017-09-01
Older Standard (superseded by this standard): GB/T 549-2008
Quoted Standard: GB/T 117-2000; GB/T 228.1; GB/T 229; GB/T 553; GB/T 1220-2007; GB/T 2975; GB/T 6402; GB/T 11345; GB/T 15822; GB/T 18669-2012
Regulation (derived from): National Standard Announcement No. 4 of 2017
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the classification and marking, requirements, test methods, inspection rules and marking of marine welding anchor chains (including ordinary links and accessories) (hereinafter referred to as anchor chains). This standard applies to the design, manufacture and acceptance of stall and unprotected anchors used in all types of ships.

GB/T 549-2017: Electro-welded anchor chains

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Electro-welded anchor chains ICS 47.020.50 U21 National Standards of People's Republic of China Replacing GB/T 549-2008 Welding chain 2017-02-28 released 2017-09-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Management Committee released Directory Preface III 1 Scope 1 2 normative reference document 1 3 Terms and definitions 1 4 classification and marking 2 4.1 Classification 2 4.2 Composition 3 4.3 Type and size 6 4.4 Marking 26 5 requires 27 5.1 Material 27 5.2 break 27 5.3 Rally 30 5.4 Processing quality 30 5.5 chain link number 31 5.6 Dimensions and tolerances 31 5.7 Heat treatment 32 5.8 Mechanical properties 32 6 Test Method 32 6.1 Test conditions 32 6.2 broken 32 6.3 Rally 33 6.4 Processing quality 33 6.5 Dimensions and tolerances 33 6.6 Mechanical properties 33

7 inspection rules

7.1 Classification of tests 34 7.2 Type inspection 34 7.3 Factory inspection 35 8 logo 36

Foreword

This standard is drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 549-2008 "welding anchor chain". Compared with GB/T 549-2008, the main technical changes are as follows. - modified part of the terms and definitions (see Chapter 3, Chapter 3 of the.2008 edition); --- increase the requirements of the M4 chain and the chainless chain (see Table 1, Table 12, Table 13); (See Table 1, Table 11, Table 13, Table 1, Table 12, Table 13 of the.2008 edition); --- modified to increase the size of the chain (see Table 3,.2008 version of Table 3); - modified the size of the "D" type connection shackle (see Table 5, Table 5 of the.2008 edition); - modified the size of the Kent shackle width (see Table 6, Table 6 of the.2008 edition); --- modified the size of the end shackle width (see Figure 8,.2008 version of Figure 8); - modified the size and weight of type I and type II shackles (see Tables 9 and 10, tables 9 and 10 of the.2008 edition); - modified manufacturing tolerances for common links (see 5.5, 5.5 of.2008). This standard is proposed by China Shipbuilding Industry Corporation. This standard by the National Ship Outfitting Standardization Technical Committee (SAC/TC129) centralized. The drafting of this standard. China Shipbuilding Industry Comprehensive Technology and Economic Research Institute, Jiangsu Yaxing Anchor Chain Co., Ltd., Qingdao anchor chain shares Co., Ltd., Anhui Asia-Pacific Chain Manufacturing Co., Ltd., Dalian Shipbuilding Heavy Industry Group Co., Ltd., Jiangnan Shipbuilding (Group) Co., Ltd. The main drafters of this standard. Zhang Meiling, Zhang Weixin, Li Jian, Zhang Ziyu, Tang Xingbing, Shao Yunliang, Li Jie, Zhao Zhenhua, Zhu Qiaoliang. This standard replaced the previous version of the standard release. --- GB/T 549-1977, GB/T 549-1983, GB/T 549-1996; --- GB/T 14526-1993. Welding chain

1 Scope

This standard specifies the classification and marking of marine welding anchor chains (including ordinary links and accessories) (hereinafter referred to as anchor chains), which requires that the test Law, inspection rules and signs. This standard applies to the design, manufacture and acceptance of stall and unprotected chains used in all types of ships.

2 normative reference documents

The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article Pieces. For undated references, the latest edition (including all modifications) applies to this document. GB/T 117-2000 taper pin Metallic materials - Tensile testing - Part 1. Test methods for room temperature GB/T GB/T 229 Metallic materials Chibi pendulum impact test method GB/T 553 anchor coating and marking GB/T 1220-2007 stainless steel rods GB/T 2975 steel and steel products mechanical properties test sampling location and sample preparation GB/T 6402 steel forgings for ultrasonic testing GB/T 11345 Non - destructive testing of welds - Ultrasonic testing technology, inspection grade and evaluation GB/T 15822 Non-destructive testing Magnetic particle testing (full range) GB/T 18669-2012 marine anchor bar

3 terms and definitions

The following terms and definitions apply to this document. 3.1 Nominal specification namesize The nominal diameter of a common chain. 3.2 Common link commonlink Constitute the basic unit of the link. 3.3 Add link link to Extendedlink Used to connect common links and end links, common links and "D" type connection shackles or links for connecting common links and rings. 3.4 End link endlink Attached to the end of the chain or anchor link with the end of the shackle, "D" type connection shackle or ring shackle link link. 3.5 Connection shackle joiningshackle ("d" joiningshackleorkentershakcle) "D" type connection shackle or Kent type shackle for connecting each link.
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