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JB/T 12379-2015Corrosion-resistant duplex (austenitic-ferritic) stainless steel castings for general engineering (English PDF)

一般工程用耐腐蚀双相（奥氏体-铁素体）不锈钢铸件

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Issued by

MIIT

Level / Type

Industry · Recommended

Issue date

October 10, 2015

Implementation date

March 1, 2016

Scope

JB/T 12379-2015 is the English-translated version of 一般工程用耐腐蚀双相（奥氏体-铁素体）不锈钢铸件.

JB/T 12379-2015 is the Chinese machinery industry standard covering corrosion-resistant duplex (austenitic-ferritic) stainless steel castings for general engineering.

It was issued on 10 October 2015 and has been in force since 1 March 2016, as a first edition. The document is under the responsibility of the Ministry of Industry and Information Technology.

This page is published from the official record of the 2015 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 12379-2015

National Standard of the People's Republic of China

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

1 Scope
2 Normative references
3 Order requirements
4 Technical requirements
4.1 Material grade and chemical composition
4.2 Mechanical properties
4.3 Ferrite content
4.4 Manufacture
4.5 Repair welding
4.6 Surface quality and internal quality
4.7 Geometrical shape and dimensional tolerances
5 Test methods
5.1 Chemical composition analysis
5.2 Mechanical properties
5.3 Determination of the ferrite content
5.4 Inspection of the surface quality and internal quality
5.5 Geometrical shape and dimensions of the casting
5.6 Non-destructive testing
6 Inspection rules
6.1 Inspection procedure
6.2 Place of inspection
6.3 Division into batches
6.4 Chemical composition analysis
6.5 Mechanical property test
6.6 Ferrite content
6.7 Retest
6.8 Re-heat treatment
6.9 Inspection of the surface quality and internal quality
6.10 Geometrical shape and dimensions of the casting
6.11 Rounding of the test results
7 Marking, packaging, transport and storage
7.1 Marking and quality certificate
7.2 Surface protection, packaging, transport and storage
Figure 1 Keel test block
Figure 2 Y type test block
Table 1 Chemical composition
Table 2 Heat treatment and mechanical properties

Document data

Chinese classification (CCS): J31.

Estimated length of the Chinese original: 10,140 words.

3 Order requirements

4 Technical requirements

5 Test methods

6 Inspection rules

7 Marking, packaging, transport and storage

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

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