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JB/T 11030-2021High and low pressure combined rotor forgings for steam turbines - Technical requirements (English PDF)

汽轮机高低压复合转子锻件技术条件

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Issued by

MIIT

Level / Type

Industry · Recommended

Issue date

May 17, 2021

Implementation date

October 1, 2021

Scope

JB/T 11030-2021 is the English-translated version of 汽轮机高低压复合转子锻件技术条件.

JB/T 11030-2021 is the Chinese machinery industry standard covering high and low pressure combined rotor forgings for steam turbines - Technical requirements. It was issued on 17 May 2021 and has been in force since 1 October 2021, replacing JB/T 11030-2010.

The document is under the responsibility of the Ministry of Industry and Information Technology. This page is published from the official record of the 2021 edition.

The figures, limits and tables the standard contains are those of the document itself, delivered in full with the English translation.

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Document preview — JB/T 11030-2021

National Standard of the People's Republic of China

Replacing: JB/T 11030-2010

Issued by: Ministry of Industry and Information Technology of the People's Republic of China

1 Scope
2 Normative references
3 Order requirements
4 Manufacturing process
4.1 Melting and pouring
4.2 Forging
4.3 Heat treatment
4.4 Machining
4.5 Welding
5 Technical requirements
5.1 Chemical composition
5.2 Mechanical properties
5.3 Hardness uniformity
5.4 Metallographic structure
5.5 Residual stress
5.6 Non-destructive testing
5.7 Thermal stability test
5.8 Dimensions and surface roughness
6 Inspection rules and test methods
6.1 Chemical composition analysis
6.2 Mechanical property test
6.3 Hardness inspection
6.4 Metallographic inspection
6.5 Determination of the residual stress
6.6 Non-destructive testing
6.7 Thermal stability test
6.8 Retest
6.9 Re-heat treatment
7 Acceptance and quality certificate
7.1 Acceptance
7.2 Quality certificate
8 Identification and packaging
Table 1 Chemical composition
Table 2 Permissible deviations of the chemical composition of the finished product
Table 3 Hydrogen, oxygen and nitrogen content
Table 4 Mechanical properties
Table 5 High temperature stress rupture strength

Document data

Chinese classification (CCS): J32.

Estimated length of the Chinese original: 11,180 words.

3 Order requirements

4 Manufacturing process

5 Technical requirements

6 Inspection rules and test methods

7 Acceptance and quality certificate

8 Identification and packaging

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

Similar standards

JB/T 11020-2010|JB/T 7022-2014|JB/T 7027-2014|GB/T 5170.10-2017|JB/T 7025-2018|JB/T 1581-2014

Editions of JB/T 11030

Edition	Title	Revision	Status
JB/T 11030-2021	High and low pressure combined rotor forgings for steam turbines - Technical requirements	current edition	Current
JB/T 11030-2010	High and low pressure combined rotor forgings for steam turbines - Technical requirements	previous edition	Superseded

This page sells the current edition, JB/T 11030-2021. Earlier editions are listed for reference only.

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