JB/T 7026-2018Rotor forgings for turbine generators below 50 MW - Technical specification (English PDF)
50MW以下汽轮发电机转子锻件 技术条件
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Issued by
MIIT
Level / Type
Industry · Recommended
Issue date
February 9, 2018
Implementation date
October 1, 2018
Scope
JB/T 7026-2018 is the English-translated version of 50MW以下汽轮发电机转子锻件 技术条件.
JB/T 7026-2018 is the recommended machinery industry standard for rotor forgings used in turbine generators of 50 MW and below. Its provisions run from the ordering requirements and the manufacturing process to the technical requirements, the inspection rules and test methods, the acceptance and quality certificates, and the signs and packaging.
The forgings it addresses are those of turbine generators rated at 50 MW or less. It quotes the parts of GB/T 223 that it quotes, among them GB/T 223.11, GB/T 223.17, GB/T 223.26 and GB/T 223.32.
It takes the place of JB/T 7026-2004. Chinese classification J32 and international classification 77.140.85 are recorded for it.
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Document preview — JB/T 7026-2018
National Standard of the People's Republic of China
- ICS
- 77.140.85
- Replacing
- JB/T 7026-2004
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 7026-2018 was issued by MIIT on 9 February 2018 and has been in force since 1 October 2018.
It replaces the earlier edition JB/T 7026-2004, JB/T 7026-1993.
2 Scope
This standard is the recommended machinery industry standard for rotor forgings used in turbine generators of 50 MW and below. Its provisions run from the ordering requirements and the manufacturing process to the technical requirements, the inspection rules and test methods, the acceptance and quality certificates, and the signs and packaging. The forgings it addresses are those of turbine generators rated at 50 MW or less. It quotes the parts of GB/T 223 that it quotes, among them GB/T 223.11, GB/T 223.17, GB/T 223.26 and GB/T 223.32. It takes the place of JB/T 7026-2004. Chinese classification J32 and international classification 77.140.85 are recorded for it.
3 Normative references
JB/T 7026-2018 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 223.17
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 223.3
GB/T 223.30
GB/T 223.31
GB/T 223.32
4 About this standard
Issued by: MIIT
English translation: about 15 pages
5 Related standards
Other editions:
JB/T 7026-2004 (earlier edition)
JB/T 7026-1993 (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
Similar standards
Editions of JB/T 7026
| Edition | Title | Revision | Status |
|---|---|---|---|
| JB/T 7026-2018 | Rotor forgings for turbine generators below 50 MW - Technical specification | current edition | Current |
| JB/T 7026-2004 | Rotor forgings for turbine generators below 50 MW - Technical specification | previous edition | Superseded |
This page sells the current edition, JB/T 7026-2018. 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 7026-2018
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