GB/T 25852-2017 English PDF

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GB/T 25852-2017: Forged steel lifting components of grade 8
Status: Valid

GB/T 25852: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 25852-2017	244	Add to Cart	3 days	Forged steel lifting components of grade 8	Valid
GB/T 25852-2010	439	Add to Cart	3 days	Forged steel lifting components for use with grade 8 chain	Obsolete

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Basic data

Standard ID: GB/T 25852-2017 (GB/T25852-2017)
Description (Translated English): Forged steel lifting components of grade 8
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J80
Classification of International Standard: 53.020.30
Word Count Estimation: 13,128
Date of Issue: 2017-02-28
Date of Implementation: 2017-09-01
Older Standard (superseded by this standard): GB/T 25852-2010
Quoted Standard: ISO 643; ISO 7500-1; EN 10025-2-2004; EN 10228-1; EN 10228-2
Adopted Standard: ISO 8539-2009, IDT
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 basic requirements for the eight-stage steel forged lifting parts (hereinafter referred to as "parts") with a maximum working load of not more than 63t. It is mainly used for the following lifting sling: GB/T 20652 and GB/T 25853 provisions of the hanging chain; ISO 7531 in the provisions of the wire rope sling; knitting sling. This standard does not apply manual forged parts, welded links and other welded parts.

GB/T 25852-2017: Forged steel lifting components of grade 8

---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.
Forged steel lifting components of grade 8 ICS 53.020.30 J80 National Standards of People's Republic of China Replace GB/T 25852-2010 8 steel forging lifting parts (ISO 8539..2009, Forgedsteelliftingcomponentsfor usewithGrade8chain, IDT) 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

Foreword

This standard is drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 25852-2010 "8 grade chain forging lifting parts". Compared with GB/T 25852-2010, the main technical The technical changes are as follows. --- modified the scope of application (see Chapter 1,.2010 edition of Chapter 1); - modified normative references (see Chapter 2,.2010, Chapter 2); - Amendments to terms such as deletion of work load, validation force, hanging chain, main ring, intermediate main ring, intermediate ring and lower end (See Chapter 3, Chapter 3 of the.2010 edition); - modified materials, heat treatment, manufacturing processes, mechanical properties and tests (see Chapters 4 and 5, Chapter Chapter 9); --- modified the contents of the logo (see Chapter 6,.2010 edition of Chapter 11); --- modified the contents of the manufacturer's product certification (see Chapter 7,.2010 edition of Chapter 10); --- Added the contents of the instruction manual (see Chapter 8); - Removes the dimensions of the main ring, the middle main ring and the lower end ring of the forged lifting parts (see.2010 edition 4.1 and 4.2). This standard uses the translation method equivalent to ISO 8539..2009 "8 grade chain steel forging lifting parts" (English version). And the normative reference in this standard international documents are consistent with the relationship between China's documents are as follows. GB/T 16825.1-2008 Tests for static uniaxial testing machines - Part 1. Tensile force systems for tension and/or pressure testing machines Of the inspection and calibration (ISO 7500-1..2004, IDT) For ease of use, this standard has been modified as follows. --- Standard name is changed from "8 grade chain steel forging lifting parts" to "8 grade steel forging lifting parts". This standard is proposed by the China Machinery Industry Federation. This standard is under the jurisdiction of the National Standardization Technical Committee for Crane Machinery (SAC/TC227). The drafting of this standard. Zhejiang Double Bird Machinery Co., Ltd., Beijing lifting transport machinery design and Research Institute, Juli rigging Co., Ltd., Anji Changhong Chain Co., Ltd. The main drafters of this standard. Zhang Yiping, Lin Fukui, Qian Yangtian, Zhang Hong, Huang Yongzhong, Yang Weibo, Zheng Yaoming. This standard replaced the previous version of the standard release. --- GB/T 25852-2010.

8 steel forging lifting parts

1 Scope

This standard specifies the basic requirements for the eight-stage steel forged lifting parts (hereinafter referred to as "parts") with a maximum working load of not more than 63t. It is mainly used for the following lifting sling. --- GB/T 20652 and GB/T 25853 provisions of the hanging chain; --- ISO 7531 in the provisions of the wire rope sling; --- knitting sling. This standard does not apply manual forged parts, welded links and other welded parts.

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. ISO 643 steel apparent grain size of the micro-metallographic determination (Steels-Micrographicdeterminationofthe apparentgrainsize ISO 7500-1 Metallic materials - Tests for static uniaxial testing machines - Part 1. Tensile force systems for tension and/or pressure testing machines (Metalicmaterials-Verificationofstaticuniaxialtestingmachines-Part 1. Tension / compressiontestingmachines-Verification andcalibrationoftheforce-measuringsystem) EN 10025-2..2004 Hot rolled products of structural steels - Part 2. Non-alloy structural steel delivery conditions (Hotroledproducts ofstructuralsteels-Part 2. Technicaldeliveryconditionsfornon-aloystructuralsteels EN10228-1 Nondestructive testing of forged steel parts - Part 1. Non-destructivetestingofsteel forgings-Part 1. Magneticparticalinspection) EN10228-2 Nondestructive testing of forged steel parts - Part 2. Non-destructing test forgings-Part 2. Penetranttesting)

3 terms and definitions

The following terms and definitions apply to this document. 3.1 Limit working load workingloadlimit WLL Under normal lifting conditions, the parts are designed to withstand the maximum quality. 3.2 Manufacturing validation power MPF The test force applied to the part during the manufacturing verification process. 3.3 Breaking force BF During the static tensile test, the maximum tensile strength of the part is broken. ......

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