2023-1-28 35.172.230.154
Code of China Chinese Classification Professional Classification ICS Classification Latest News Value-added Services

Position: Chinese Standard in English/GB/T 5779.1-2000
GB/T 5779.1-2000   Fasteners-Surface discontinuities-Bolts,screws and studs for general requirements (English Version)
Standard No.: GB/T 5779.1-2000 Status:valid remind me the status change

Email:

Language:English File Format:PDF
Word Count: 8000 words Price(USD):240.0 remind me the price change

Email:

Implemented on:2001-2-1 Delivery: via email in 1 business day
,,
Standard No.: GB/T 5779.1-2000
English Name: Fasteners-Surface discontinuities-Bolts,screws and studs for general requirements
Chinese Name: 紧固件表面缺陷 螺栓、螺钉和螺柱 一般要求
Chinese Classification: J13    Fastener
Professional Classification: GB    National Standard
ICS Classification: 21.060.10 21.060.10    Bolts, screws, studs 21.060.10
Issued by: State Quality and Technology Supervision Bureau
Issued on: 2000-09-02
Implemented on: 2001-2-1
Status: valid
Superseding:GB/T 5779.1-1986 Surface discontinuities of fasteners on bolts, screws and studs for general requirements
Language: English
File Format: PDF
Word Count: 8000 words
Price(USD): 240.0
Delivery: via email in 1 business day
Fasteners - Surface discontinuities - Bolts, screws and studs for general requirements 1 Scope 1.1 This standard establishes limits for various types of surface discontinuities on bolts, screws and studs for general requirements. It applies to bolts, screws and studs with - nominal thread diameters 5 mm and larger; - product grades A and B; - property classes up to and including 10.9, unless otherwise specified in product standards or agreed between supplier and purchaser. 1.2 Limits for surface discontinuities on bolts, screws and studs for special requirements (e.g. automatic assembly) are laid down in GB/T 5779.3. When the engineering requirements of the application necessitate that surface discontinuities on bolts, screws and studs be more closely controlled, it shall be specified in the respective product standard, or the purchaser shall specify the applicable limits in the inquiry and purchase order. 1.3 Where the permissible limits for surface discontinuities indicated in Clause 3 occur, the minimum values for the mechanical and functional properties specified in GB/T 3098.1 shall still be met. Notes: 1 The figures in Clause 3 are examples only. They apply correspondingly also to other types of bolts, screws and studs. 2 The individual figures show the surface discontinuities exaggerated in some cases for clarity. 2 Normative references The following standards contain provisions which, through reference in this standard, constitute provisions of this standard. At the time of publication, all the editions listed are valid. All standards are subject to revision, and all parties using this standard are encouraged to investigate the possibility of applying the latest editions of the following standards. GB/T 90-1985 Acceptance inspection, marking and packaging of fasteners (eqv 3269: 1984) GB/T 1031-1995 Surface roughness parameters and their values (neq ISO 468: 1982) GB/T 2828-1987 Sampling procedures and tables for lot-by-lot inspection by attributes (Apply to inspection of successive lots or batches) GB/T 3098.1-2000 Mechanical properties of fasteners - Bolts, screws and studs (idt ISO 898-1: 1999) GB/T 5779.3-2000 Fasteners-Surface discontinuities - Bolts, screws and studs for special requirements (idt ISO 6157-3: 1988) GB/T 15239-1994 Sampling procedures and tables for isolated lot inspection by attributes 3 Types, causes, appearance and limits of surface discontinuities 3.1 Cracks A crack is a clean (crystalline) fracture passing through or across the grain boundaries and may possibly follow inclusions of foreign elements. Cracks are normally caused by overstressing the metal during forging or other forming operations, or during heat treatment. Where parts are subjected to significant reheating, cracks usually are discoloured by scale.
Foreword I ISO Foreword II 1 Scope 2 Normative references 3 Types, causes, appearance and limits of surface discontinuities 4 Inspection and evaluation procedure Annex A (Normative) Sampling plan for surface discontinuities
Referred in GB/T 5779.1-2000:
*GB/T 90-1985 Acceptance inspection,marking and packaging of fasteners
*GB/T 1031-1995 Surface rouglness--Parameters and their values
*GB/T 2828-1987 Sampling procedures and tables for lot-by-lot inspection by attributes (Apply to inspection of successive lots or batches)
*GB/T 3098.1-2000 Mechanical Properties of Fasteners - Bolts, Screws and Studs
*GB/T 5779.3-2000 Fasteners - Surface discontinities - Bolts, screws and studs for special requirements
*GB/T 15239-1994 Sampling procedures and tables for isolated lot inspection by attributes
GB/T 5779.1-2000 is referred in:
* NB/T 47003.1-2009(JB/T 4735.1) Steel Welded Atmospheric Pressure Vessels
* GB/T 70.1-2008 Hexagon socket head cap screws
* GB/T 70.3-2008 Hexagon socket countersunk head screws
* GB/T 68-2000 Slotted countersunk flat head screws (common head style)
* GB/T 3098.1-2010 Mechanical properties of fasteners—Bolts,screws and studs
* HG/T 20584-2011 Technical requirements of fabrication for steel chemical vessels
* DL/T 439-2006 The technical guide for high-temperature bolt of fossil-fired power plant
* DL/T 439-2006 The technical guide for high-temperature bolt of fossil-fired power plant
* GB/T 3098.1-2010 Mechanical properties of fasteners—Bolts,screws and studs
* HG/T 20584-2011 Technical requirements of fabrication for steel chemical vessels
* NB/T 47003.1-2009(JB/T 4735.1) Steel Welded Atmospheric Pressure Vessels
* GB/T 67-2008 Slotted pan head screws - Product grade A
* GB/T 70.1-2008 Hexagon socket head cap screws
* GB/T 70.3-2008 Hexagon socket countersunk head screws
* GB/T 3098.1-2000 Mechanical Properties of Fasteners - Bolts, Screws and Studs
* GB/T 68-2000 Slotted countersunk flat head screws (common head style)
* GB/T 5783-2000 Hexagon Head Bolts-Full Thread
* GB/T 67-2008 Slotted pan head screws - Product grade A
* GB/T 3632-2008 Sets of torshear type high strength bolt hexagon nut and plain washer for steel structures
* GB/T 70.1-2000 Hexagon Socket Head Cap Screw
* GB/T 819.1-2000 Countersunk flat head screws (common head style) with cross-Part 1:Steel of property class 4.8
* GB/T 5782-2000 Hexagon Head Bolts
* GB/T 5782-2000 Hexagon Head Bolts
* GB/T 5783-2000 Hexagon Head Bolts-Full Thread
* GB 1231-2006 Specifications of High Strength Bolts with Large Hexagon Head, Large Hexagonal Nuts and Plain Washers for Steel Structures
* GB/T 3098.1-2000 Mechanical Properties of Fasteners - Bolts, Screws and Studs
* GB/T 3098.1-2000 Mechanical Properties of Fasteners - Bolts, Screws and Studs
* GB/T 1231-2006 Specifications of High Strength Bolts with Large Hexagon Head, Lar
* NB/T 47003.1-2009(JB/T4735) Steel Welded Atmospheric Pressure Vessels
* GB/T 79-2007 Hexagon socket set screws with dog point
* GB/T 78-2007 Hexagon socket set screws with cone point
* GB/T 68-2016 Slotted Countersunk Flat Head Screws
* GB/T 5783-2016 Hexagon Head Bolts - Full Thread
*GB/T 5782-2016 Hexagon head bolts
*QC/T 869-2011 Short-cycle drawn arc welding stud
*GB/T 3098.22-2009 Mechanical properties of fasteners made of the fine grain non-heat treatment steel—Bolts,screws and studs
*GB/T 67-2016 Slotted pan head screws
*GB/T 71-2018 Slotted set screws with cone point
*GB/T 9125.2-2020 Fasteners for steel pipe flange joints—Part 2:Class designated
*GB/T 9125.1-2020 Fasteners for steel pipe flange joints—Part 1:PN designated
*GB/T 2672-2017 Hexalobular socket pan head screws
*GB/T 818-2016 Pan head screws with cross recess
*GB/T 794-2021 Strenthened cup head square neck bolts
*GB/T 70.6-2020 Hexagon socket head cap screws-Fine pitch thread
Code of China
Standard
GB/T 5779.1-2000  Fasteners-Surface discontinuities-Bolts,screws and studs for general requirements (English Version)
Standard No.GB/T 5779.1-2000
Statusvalid
LanguageEnglish
File FormatPDF
Word Count8000 words
Price(USD)240.0
Implemented on2001-2-1
Deliveryvia email in 1 business day
Detail of GB/T 5779.1-2000
Standard No.
GB/T 5779.1-2000
English Name
Fasteners-Surface discontinuities-Bolts,screws and studs for general requirements
Chinese Name
紧固件表面缺陷 螺栓、螺钉和螺柱 一般要求
Chinese Classification
J13
Professional Classification
GB
ICS Classification
Issued by
State Quality and Technology Supervision Bureau
Issued on
2000-09-02
Implemented on
2001-2-1
Status
valid
Superseded by
Superseded on
Abolished on
Superseding
GB/T 5779.1-1986 Surface discontinuities of fasteners on bolts, screws and studs for general requirements
Language
English
File Format
PDF
Word Count
8000 words
Price(USD)
240.0
Keywords
GB/T 5779.1-2000, GB 5779.1-2000, GBT 5779.1-2000, GB/T5779.1-2000, GB/T 5779.1, GB/T5779.1, GB5779.1-2000, GB 5779.1, GB5779.1, GBT5779.1-2000, GBT 5779.1, GBT5779.1
Introduction of GB/T 5779.1-2000
Fasteners - Surface discontinuities - Bolts, screws and studs for general requirements 1 Scope 1.1 This standard establishes limits for various types of surface discontinuities on bolts, screws and studs for general requirements. It applies to bolts, screws and studs with - nominal thread diameters 5 mm and larger; - product grades A and B; - property classes up to and including 10.9, unless otherwise specified in product standards or agreed between supplier and purchaser. 1.2 Limits for surface discontinuities on bolts, screws and studs for special requirements (e.g. automatic assembly) are laid down in GB/T 5779.3. When the engineering requirements of the application necessitate that surface discontinuities on bolts, screws and studs be more closely controlled, it shall be specified in the respective product standard, or the purchaser shall specify the applicable limits in the inquiry and purchase order. 1.3 Where the permissible limits for surface discontinuities indicated in Clause 3 occur, the minimum values for the mechanical and functional properties specified in GB/T 3098.1 shall still be met. Notes: 1 The figures in Clause 3 are examples only. They apply correspondingly also to other types of bolts, screws and studs. 2 The individual figures show the surface discontinuities exaggerated in some cases for clarity. 2 Normative references The following standards contain provisions which, through reference in this standard, constitute provisions of this standard. At the time of publication, all the editions listed are valid. All standards are subject to revision, and all parties using this standard are encouraged to investigate the possibility of applying the latest editions of the following standards. GB/T 90-1985 Acceptance inspection, marking and packaging of fasteners (eqv 3269: 1984) GB/T 1031-1995 Surface roughness parameters and their values (neq ISO 468: 1982) GB/T 2828-1987 Sampling procedures and tables for lot-by-lot inspection by attributes (Apply to inspection of successive lots or batches) GB/T 3098.1-2000 Mechanical properties of fasteners - Bolts, screws and studs (idt ISO 898-1: 1999) GB/T 5779.3-2000 Fasteners-Surface discontinuities - Bolts, screws and studs for special requirements (idt ISO 6157-3: 1988) GB/T 15239-1994 Sampling procedures and tables for isolated lot inspection by attributes 3 Types, causes, appearance and limits of surface discontinuities 3.1 Cracks A crack is a clean (crystalline) fracture passing through or across the grain boundaries and may possibly follow inclusions of foreign elements. Cracks are normally caused by overstressing the metal during forging or other forming operations, or during heat treatment. Where parts are subjected to significant reheating, cracks usually are discoloured by scale.
Contents of GB/T 5779.1-2000
Foreword I ISO Foreword II 1 Scope 2 Normative references 3 Types, causes, appearance and limits of surface discontinuities 4 Inspection and evaluation procedure Annex A (Normative) Sampling plan for surface discontinuities
About Us   |    Contact Us   |    Terms of Service   |    Privacy   |    Cancellation & Refund Policy   |    Payment
Tel: +86-10-8572 5655 | Fax: +86-10-8581 9515 | Email: coc@codeofchina.com | QQ: 672269886
Copyright: Foryou Tech Co., Ltd. 2008-2040
 
 
Keywords:
GB/T 5779.1-2000, GB 5779.1-2000, GBT 5779.1-2000, GB/T5779.1-2000, GB/T 5779.1, GB/T5779.1, GB5779.1-2000, GB 5779.1, GB5779.1, GBT5779.1-2000, GBT 5779.1, GBT5779.1