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JB/T 11024-2025Welded rotor forgings for steam turbines of large nuclear power units - Technical specification (English PDF)

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Issued by

Ministry of Industry and Information Technology

Level / Type

National · Recommended

Issue date

July 2, 2025

Implementation date

February 1, 2026

Scope

JB/T 11024-2025 (Welded rotor forgings for steam turbines of large nuclear power units - Technical specification) is available as an English-translated PDF.

JB/T 11024-2025 — This standard specifies the ordering requirements, manufacturing process, and technical requirements for alloy steel welded rotor forgings used in large nuclear power turbine units.

It describes the corresponding test methods and specifies inspection rules, acceptance procedures, and quality certificates.

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Document preview — JB/T 11024-2025

National Standard of the People's Republic of China

ICS: 77.140.85
Classification: J 32
Replacing: JB/T 11024-2010

Issued by: Ministry of Industry and Information Technology

What this standard covers1
Document data2

What this standard covers

This standard specifies the ordering requirements, manufacturing process, and technical requirements for alloy steel welded rotor forgings used in large nuclear power turbine units. It describes the corresponding test methods and specifies inspection rules, acceptance procedures, and quality certificates. This standard applies to the manufacturing of welded rotor forgings used in large nuclear power turbine units that operate under high stress and have undergone rough machining and heat treatment.

Document data

International classification (ICS): 77.140.85.

Chinese classification (CCS): J32.

Supersedes the earlier edition JB/T 11024-2010.

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

Referenced standards

Cited by

NB/T 20354.3-2015Design and manufacturing specification of steam turbine rotors for pressurized water reactor nuclear power plants - Part 3: Welded rotor

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