JB/T 4212.2-2014Cold Heading Dies for Hexagon Socket Head Cap Screws - Part 2: Type B Punches for Primary Upsetting (English PDF)
内六角圆柱头螺钉冷镦模 第2部分：B型初镦冲头
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Issued by
MIIT
Level / Type
Industry · Recommended
Issue date
July 9, 2014
Implementation date
November 1, 2014
Scope
JB/T 4212.2-2014 is the English-translated version of 内六角圆柱头螺钉冷镦模 第2部分：B型初镦冲头.
JB/T 4212.2-2014 is the second part of the recommended Chinese machinery industry series on cold heading dies for hexagon socket head cap screws, and it covers the type B punch used for primary upsetting.
The structural type and the dimensions of that punch are fixed here, along with its material, its hardness and its marking. The part addresses dies fitted to multi-station automatic cold heading machines working on hexagon socket head cap screws.
Classification is J46 in China and 25.120.30 internationally. It cites GB/T 70.1-2008 and JB/T 4213. The edition replaces JB/T 4212.3-1996. Issued on 9 July 2014, it has applied since 1 November 2014.
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Document preview — JB/T 4212.2-2014
National Standard of the People's Republic of China
- ICS
- 25.120.30
- Replacing
- JB/T 4212.3-1996
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 4212.2-2014 was issued by MIIT on 9 July 2014 and has been in force since 1 November 2014.
It replaces the earlier edition JB/T 4212.2-1996.
It is one of 18 parts of the JB/T 4212 series.
2 Scope
This standard is the second part of the recommended Chinese machinery industry series on cold heading dies for hexagon socket head cap screws, and it covers the type B punch used for primary upsetting. The structural type and the dimensions of that punch are fixed here, along with its material, its hardness and its marking. The part addresses dies fitted to multi-station automatic cold heading machines working on hexagon socket head cap screws. Classification is J46 in China and 25.120.30 internationally. It cites GB/T 70.1-2008 and JB/T 4213. The edition replaces JB/T 4212.3-1996.
3 Normative references
JB/T 4212.2-2014 cites the following standards, which apply in full or in part through the references made to them in its clauses.
GB/T 70.1-2008 — Hot rolled low carbon steel wire rods
JB/T 4213
4 About this standard
Issued by: MIIT
English translation: about 15 pages
5 Related standards
Other parts of this standard:
JB/T 4212.1-1996 — Dies for cold heading hexagon socket head cap screws - First upsetting punches - Type A
JB/T 4212.1-2014 — Part 1: Type A Punches for Primary Upsetting and Kicker Pins
JB/T 4212.3-1996 — Dies for cold heading hexagon socket head cap screws - First upsetting punches - Type B
JB/T 4212.3-2014 — Cold heading dies for hexagon socket head cap screws - Part 3: Forming punches
JB/T 4212.4-1996 — Dies for cold heading hexagon socket head cap screws - Forming punches
JB/T 4212.4-2014 — Part 4: Punches for Forming Hexagon Sockets
JB/T 4212.5-1996 — Dies for cold heading hexagon socket head cap screws - Hexagon socket punches - Type A
JB/T 4212.5-2014 — Part 5: Die Pieces
JB/T 4212.6-1996 — Dies for cold heading hexagon socket head cap screws - Hexagon socket punches - Type B
JB/T 4212.6-2014 — Part 6: Dies
JB/T 4212.7-1996 — Dies for cold heading hexagon socket head cap screws - Hexagon socket punches - Type C
JB/T 4212.8-1996 — Dies for cold heading hexagon socket head cap screws - Hexagon socket punches - Type D
JB/T 4212.9-1996 — Dies for cold heading hexagon socket head cap screws - First upsetting die inserts
JB/T 4212.10-1996 — Dies for cold heading hexagon socket head cap screws - First upsetting dies
JB/T 4212.11-1996 — Dies for cold heading hexagon socket head cap screws - Forming dies
JB/T 4212.12-1996 — Dies for cold heading hexagon socket head cap screws - Hexagon die inserts
JB/T 4212.13-1996 — Dies for cold heading hexagon socket head cap screws - Hexagon heading die inserts
Other editions:
JB/T 4212.2-1996 (earlier edition)
6 Classification and status
International classification (ICS): 25.120.30
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
Similar standards
Editions of JB/T 4212.2
| Edition | Title | Revision | Status |
|---|---|---|---|
| JB/T 4212.2-2014 | Cold Heading Dies for Hexagon Socket Head Cap Screws - Part 2: Type B Punches for Primary Upsetting | current edition | Current |
| JB/T 4212.3-1996 | Cold Heading Dies for Hexagon Socket Head Cap Screws - Part 2: Type B Punches for Primary Upsetting | previous edition | Superseded |
This page sells the current edition, JB/T 4212.2-2014. Earlier editions are listed for reference only.
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Related Standards
GB/T 70.1-2008 — Hexagon socket head cap screws
JB/T 4213-1996 — Cold heading dies for fasteners - Technical specifications
JB/T 4213-2014 — Cold Heading Dies for Fasteners - Specifications
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JB/T 4212.2-2014
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