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GB/T 24815-2009: Short link chain for lifting purposes -- Grade 6, non-calibrated, for chain slings etc.
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 24815-2009 | English | 234 |
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Short link chain for lifting purposes -- Grade 6, non-calibrated, for chain slings etc.
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GB/T 24815-2009
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PDF similar to GB/T 24815-2009
Basic data | Standard ID | GB/T 24815-2009 (GB/T24815-2009) | | Description (Translated English) | Short link chain for lifting purposes -- Grade 6, non-calibrated, for chain slings etc. | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J80 | | Classification of International Standard | 53.020.30 | | Word Count Estimation | 12,169 | | Date of Issue | 2009-12-15 | | Date of Implementation | 2010-07-01 | | Quoted Standard | GB/T 702; GB/T 6394-2002; GB/T 20946-2007 | | Adopted Standard | ISO 3075-1980, IDT | | Regulation (derived from) | National Standard Approval Announcement 2009 No.15 (Total No.155) | | 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 use of cranes and hoists and general lifting chain with six ordinary precision chain. The chain is the result of insufficient welding heat treatment and testing round of short chain and comply with GB/T 20946 General requirements for acceptance. This standard applies to the nominal size of 5 mm ~ 45 mm chain, also given in Appendix 6 mm ~ 30 mm chain of temporary additional nominal size. | GB/T 24815-2009: Short link chain for lifting purposes -- Grade 6, non-calibrated, for chain slings etc.
---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.
Short link chain for lifting purposes.Grade 6, non-calibrated, for chain slings etc
ICS 53.020.30
J80
National Standards of People's Republic of China
GB/T 24815-2009/ISO 3075. 1980
Short link chain for lifting
Hanging chain with six ordinary precision chain
[ISO 3075. 1980, Shortlinkchainforliftingpurposes-
GradeS (6), non-calibrated, forchainslingsetc. , IDT]
Posted 2009-12-15
2010-07-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Table of Contents
Introduction Ⅲ
1 Scope 1
2 Normative references 1
3 Terms and definitions
4 1 General Acceptance
5 size 1
6 material, heat treatment and manufacturing 2
2 7 test requirements
8 test 2
9 mark 3
10 manufacturing certificate 3
Appendix A (normative) 6 ordinary precision chain with additional temporary size 7
GB/T 24815-2009/ISO 3075. 1980
Foreword
This standard is identical with ISO 3075. 1980 "Short link chain hoists lifting chain with S (6) ordinary level precision chain" (in English).
This standard is equivalent translation ISO 3075. 1980.
For ease of use, this standard made the following editorial changes.
--- "This International Standard" be replaced by "this standard";
"." --- With a decimal point instead of a comma as the decimal point, "";
--- Delete foreword international standards;
--- Removed has been revoked ISO /R388;
--- Other international standards referenced with the international standard has been adopted as the standard instead of the corresponding country.
Appendix A of this standard is a normative appendix.
The standard proposed by China Machinery Industry Federation.
This standard by the National Standardization Technical Committee crane (SAC/TC227) centralized.
This standard is drafted by. Hangzhou Wulin Machine Co., Ltd., a modern crane factory in Hangzhou, Beijing Materials Handling Machine Design
Institute.
Participated in the drafting of this Standard. China Coal Zhangjiakou Coal Mining Machinery Co., Ltd. chain Parsons Branch, Zhejiang Double Bird Machinery Limited
Division, Nanyang City crane factory, Anji Changhong Chain Manufacturing Co., Ltd.
The main drafters of this standard. Xu Jianhua, Wu Jie, Cui Yuan, Lin Fukui.
GB/T 24815-2009/ISO 3075. 1980
Short link chain for lifting
Hanging chain with six ordinary precision chain
1 Scope
This standard specifies the use of cranes and slings and general lifting six ordinary precision chain. The chain is the result of insufficient heat
Round welded management and test a short chain and comply with GB/T 20946 stipulated acceptance General.
This standard applies to nominal size of 5mm ~ 45mm chain, the appendix also gives 6mm ~ 30mm chain with additional temporary
Nominal size.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB/T 702 hot-rolled steel bars - Dimensions, shape, weight and tolerances (GB/T 702-2008, ISO 1035-1 ~ 1035-4. 1980,
MOD)
GB/T 6394-2002 average grain size metal assay (ASTME112-96, MOD)
GB/T 20946-2007 Short link chain for lifting acceptance General (ISO 1834.1999, IDT)
3 Terms and Definitions
Terms and definitions GB/T 20946 apply to this standard established.
4 Acceptance General
The chain should be consistent with GB/T 20946 and the requirements of this standard.
5 Dimensions
5.1 nominal size (see GB/T 20946-2007 of 3.1)
Chain preferred nominal size should be consistent with Table 1 a. The nominal and manufacturing chain with wire or rod (GB/T 702) with a diameter
correspond.
Note. The size of the control wire or rod used in the manufacturing chain is important. However, this standard refers to the finished product chain must be noted that test may not have the opportunity to retroactively original
Test results of material size. Size chain manufacturers of raw materials should be controlled within the allowable tolerances.
5.2 material diameter (see GB/T 20946 in 4.1)
5.2.1 material diameter tolerance
Should exceed the nominal diameter of + 2-6%.
Deviation shall not exceed ± 5% of the nominal diameter.
5.2.2 weld tolerances
--- Type 1. On any cross section of 10% of the nominal diameter;
--- Type 2. 20% of the chain ring nominal diameter of the cross section perpendicular to the plane, on the other plane is 35%.
Note. type 1 chain by welding tolerance limit of 10% in nominal inside diameter to avoid kinking or jamming problems; type 2 chain links in certain areas only allow welding
Ultra seam difference exceeds 10% of a specified type (see FIG. 1), in order to provide the necessary clearance to ensure no kinks and jamming problems.
GB/T 24815-2009/ISO 3075. 1980
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