JB/T 8825.5-2011Tools for Whitworth threads - Part 5: Circular screwing dies (English PDF)
惠氏螺纹刀具 第5部分：圆板牙
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Issued by
MIIT
Level / Type
Industry · Recommended
Issue date
December 20, 2011
Implementation date
April 1, 2012
Scope
JB/T 8825.5-2011 is the English-translated version of 惠氏螺纹刀具 第5部分：圆板牙.
JB/T 8825.5-2011 is a recommended Chinese machinery industry standard, the fifth part of the standard for tools for Whitworth threads. It fixes the types and sizes of circular screwing dies for Whitworth threads, the technical requirements, the performance testing, the marking and the basic requirements for packing.
It applies to the round dies used for cutting Whitworth threads; of the thread codes it names for them, the smallest is 1/8. It replaces the earlier edition of the same part, JB/T 8825.5-1998, and it quotes GB 443.
Issued by the Ministry of Industry and Information Technology, it carries Chinese classification J41 and international classification 25.100.50.
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Document preview — JB/T 8825.5-2011
National Standard of the People's Republic of China
- ICS
- 25.100.50
- Replacing
- JB/T 8825.5-1998
Issued by: Ministry of Industry and Information Technology of the People's Republic of China
Contents
- Foreword
- Scope
- Normative references
- About this standard
- Related standards
- Classification and status
1 Foreword
JB/T 8825.5-2011 was issued by MIIT on 20 December 2011 and has been in force since 1 April 2012.
It replaces the earlier edition JB/T 8825.5-1998.
It is one of 13 parts of the JB/T 8825 series.
2 Scope
This standard is a recommended Chinese machinery industry standard, the fifth part of the standard for tools for Whitworth threads. It fixes the types and sizes of circular screwing dies for Whitworth threads, the technical requirements, the performance testing, the marking and the basic requirements for packing. It applies to the round dies used for cutting Whitworth threads; of the thread codes it names for them, the smallest is 1/8. It replaces the earlier edition of the same part, JB/T 8825.5-1998, and it quotes GB 443. Issued by the Ministry of Industry and Information Technology, it carries Chinese classification J41 and international classification 25.100.50.
3 Normative references
JB/T 8825.5-2011 cites the following standards, which apply in full or in part through the references made to them in its clauses.
GB 443
4 About this standard
Issued by: MIIT
English translation: about 15 pages
5 Related standards
Other parts of this standard:
JB/T 8825.1-1998 — Whitworth thread taps
JB/T 8825.1-2011 — Part 1: Taps
JB/T 8825.2-1998 — Whitworth thread taps - Thread tolerances
JB/T 8825.2-2011 — Part 2: Manufacturing tolerances on the threaded portion of taps
JB/T 8825.3-1998 — Whitworth thread taps - Technical specifications
JB/T 8825.3-2011 — Part 3: Technical specification for taps
JB/T 8825.4-1998 — Whitworth thread nut taps
JB/T 8825.4-2011 — Part 4: Nut taps
JB/T 8825.6-1998 — Whitworth thread flat thread rolling dies
JB/T 8825.6-2011 — Part 6: Thread rolling flat dies
JB/T 8825.7-1998 — Whitworth thread thread rolling wheels
JB/T 8825.7-2011 — Part 7: Thread rolling cylindrical dies
Other editions:
JB/T 8825.5-1998 (earlier edition)
6 Classification and status
International classification (ICS): 25.100.50
Prefix JB/T: recommended standard.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Normative references
Similar standards
Editions of JB/T 8825.5
| Edition | Title | Revision | Status |
|---|---|---|---|
| JB/T 8825.5-2011 | Tools for Whitworth threads - Part 5: Circular screwing dies | current edition | Current |
| JB/T 8825.5-1998 | Tools for Whitworth threads - Part 5: Circular screwing dies | previous edition | Superseded |
This page sells the current edition, JB/T 8825.5-2011. Earlier editions are listed for reference only.
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Related Standards
GB 443-1989 — Lubri cating oils for total loss systems L-AN
JB/T 8825.6-2011 — Tools for Whitworth threads - Part 6: Thread rolling flat dies
JB/T 8825.4-1998 — Whitworth thread nut taps
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JB/T 8825.5-2011
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