Valid

JB/T 11027-2021Large hydraulic turbine castings made by electroslag casting - Technical requirements (English PDF)

电渣熔铸大型水轮机铸件技术条件

Preview PDF

This is a limited preview

Buy now to download the full PDF (15 pages)

Need quotation for your management?

Get a formal quotation for JB/T 11027-2021 in 30 minutes.

Issued by

MIIT

Level / Type

Industry · Recommended

Issue date

May 17, 2021

Implementation date

October 1, 2021

Scope

JB/T 11027-2021 is the English-translated version of 电渣熔铸大型水轮机铸件技术条件.

JB/T 11027-2021 is the Chinese machinery industry standard covering large hydraulic turbine castings made by electroslag casting - Technical requirements. It was issued on 17 May 2021 and has been in force since 1 October 2021, replacing JB/T 11027-2010.

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.

Found what you need?

Document preview — JB/T 11027-2021

National Standard of the People's Republic of China

Replacing: JB/T 11027-2010

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
4.2 Casting
4.3 Heat treatment
4.4 Repair welding
4.5 Machining
5 Technical requirements
5.1 Chemical composition
5.2 Mechanical properties
5.3 Non-destructive testing
5.4 Quality of the casting
6 Inspection rules and test methods
6.1 Integral test block
6.2 Chemical composition analysis
6.3 Mechanical property test
6.4 Profile inspection
6.5 Retest
6.6 Re-heat treatment
7 Quality certificate
8 Identification and packaging
Figure 1 Diagram of the position of the integral test block of the integrally cast guide vane type casting
Table 1 Chemical composition of the stainless steel casting
Table 2 Chemical composition of the low alloy steel casting
Table 3 Reference values of the hydrogen, oxygen and nitrogen content
Table 4 Mechanical properties
Table 5 Dimensional tolerances of the casting
Table 6 Machining allowance of the casting

Document data

Chinese classification (CCS): J31.

Estimated length of the Chinese original: 10,196 words.

3 Order requirements

4 Manufacturing process

5 Technical requirements

6 Inspection rules and test methods

7 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

NB/T 10829-2021|JB/T 11031-2010|GB/T 45981.3-2025|NB/T 10828-2021|JB/T 11837-2014|JB/T 7031-2018

Editions of JB/T 11027

Edition	Title	Revision	Status
JB/T 11027-2021	Large hydraulic turbine castings made by electroslag casting - Technical requirements	current edition	Current
JB/T 11027-2010	Large hydraulic turbine castings made by electroslag casting - Technical requirements	previous edition	Superseded

This page sells the current edition, JB/T 11027-2021. Earlier editions are listed for reference only.

How to Download JB/T 11027-2021

1
Add to cart
Click "Download PDF" on this page and choose "Buy this standard". You can add more standards before checkout.
2
Checkout
Enter your email and billing details. Payment is processed securely by Stripe (cards or bank transfer). Prefer bank details? Request a quotation (min. order $300).
3
Instant delivery (0–9 sec)
Delivery is automatic: within seconds of payment you'll receive an email with a secure download link. The link stays valid for 72 hours.
4
Invoice included
A tax invoice is attached to the confirmation email. Need a custom invoice? Contact us.