JB/T 8708-2014Non-central hole rotor forgings for 300 MW to 600 MW turbine generators - Technical specification (English PDF)
300MW~600MW汽轮发电机无中心孔转子锻件 技术条件
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Issued by
MIIT
Level / Type
Industry · Recommended
Issue date
July 9, 2014
Implementation date
November 1, 2014
Scope
JB/T 8708-2014 is the English-translated version of 300MW~600MW汽轮发电机无中心孔转子锻件 技术条件.
JB/T 8708-2014 is the recommended Chinese machinery industry standard for non-central hole rotor forgings used in turbine generators rated from 300 MW to 600 MW.
It addresses vacuum-treated alloy steel forgings and states the ordering requirements, the manufacturing process, the technical requirements, the inspection rules and test methods, and the inspection and quality certificate with marking and packaging.
The classifications are J32 in the Chinese system and 77.140.85 in the international one. The GB/T 223 series of chemical analysis methods for steel is cited throughout.
It withdraws the 1998 edition, JB/T 8708-1998. Issued on 9 July 2014, it has applied since 1 November 2014.
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Document preview — JB/T 8708-2014
National Standard of the People's Republic of China
- ICS
- 77.140.85
- Replacing
- JB/T 8708-1998
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 8708-2014 was issued by MIIT on 9 July 2014 and has been in force since 1 November 2014.
It replaces the earlier edition JB/T 8708-1998.
2 Scope
This standard is the recommended Chinese machinery industry standard for non-central hole rotor forgings used in turbine generators rated from 300 MW to 600 MW. It addresses vacuum-treated alloy steel forgings and states the ordering requirements, the manufacturing process, the technical requirements, the inspection rules and test methods, and the inspection and quality certificate with marking and packaging. The classifications are J32 in the Chinese system and 77.140.85 in the international one. The GB/T 223 series of chemical analysis methods for steel is cited throughout. It withdraws the 1998 edition, JB/T 8708-1998.
3 Normative references
JB/T 8708-2014 cites the following standards, which apply in full or in part through the references made to them in its clauses.
GB/T 223.11
GB/T 223.12
GB/T 223.13
GB/T 223.14
GB/T 223.16
GB/T 223.17
GB/T 223.18
GB/T 223.19
GB/T 223.20
GB/T 223.21
GB/T 223.22
GB/T 223.23
GB/T 223.25
GB/T 223.26
GB/T 223.28
GB/T 223.29
GB/T 223.30
GB/T 223.31
GB/T 223.3
GB/T 223.
4 About this standard
Issued by: MIIT
English translation: about 15 pages
5 Related standards
Other editions:
JB/T 8708-1998 (earlier edition)
6 Classification and status
International classification (ICS): 77.140.85
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
- GB/T 223.11Iron, steel and alloy - Determination of chromium content - Titrimetric method and spectrophotometric method
- GB/T 223.12Methods for chemical analysis of iron, steel and alloy. The sodium carbonate separation-diphenyl carbazide photometric method for the determination of chromium content
- GB/T 223.13Iron, steel and alloy - Determination of vanadium content - Titrimetric method and spectrophotometric method
- GB/T 223.14Methods for chemical analysis of iron, steel and alloy. The N-benzoyl-N-phenylhydroxylamine extraction photometric method for the determination of vanadium content
- GB/T 223.17Methods for chemical analysis of iron, steel and alloy - The diantipyrylmethane photometric method for the determination of titanium content
- GB/T 223.18Methods for chemical analysis of iron, steel and alloy--The sodium thiosulfate separation iodimetric method for the determination of copper content
GB/T 223.16 · GB/T 223.
Similar standards
Editions of JB/T 8708
| Edition | Title | Revision | Status |
|---|---|---|---|
| JB/T 8708-2014 | Non-central hole rotor forgings for 300 MW to 600 MW turbine generators - Technical specification | current edition | Current |
| JB/T 8708-1998 | Non-central hole rotor forgings for 300 MW to 600 MW turbine generators - Technical specification | previous edition | Superseded |
This page sells the current edition, JB/T 8708-2014. Earlier editions are listed for reference only.
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Related Standards
GB/T 223.11-2008 — Iron, steel and alloy -- Determination of chromium content -- Visual titration or potentiometric titration method
GB/T 223.11-2025 — Iron, steel and alloy - Determination of chromium content - Titrimetric method and spectrophotometric method
GB/T 223.12-1991 — Methods for chemical analysis of iron, steel and alloy. The sodium carbonate separation-diphenyl carbazide photometric method for the determination of chromium content
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JB/T 8708-2014
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