GB/T 39077-2020 Replaced National standards

GB/T 39077-2020 Test methods for detecting detrimental phases in lean duplex austenitic-ferritic stainless steels

Publish Date: 2020-09-29 Implement Date: 2021-04-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: GB/T 39077-2020

Standard Type: National standards

Standard Status: Replaced

is_force_gb: no

CCS Name: Metallographic examination methods

ICS Name: Other testing methods for metal materials

Publish Date: 2020-09-29

Implement Date: 2021-04-01

Pages: 24 pages

Scope

This standard specifies the detection methods for harmful phases in three economical austenitic-ferritic duplex stainless steels, namely microstructure examination, Charpy impact test, and ferric chloride corrosion test.
This standard is applicable to the detection of harmful phases precipitated in economical austenitic-ferritic duplex stainless steels during production and manufacturing processes (such as heat treatment or welding) or during long-term use at certain temperatures. It is not applicable to situations where the toughness and corrosion resistance of economical austenitic-ferritic duplex stainless steels are reduced due to other reasons. The product grades mainly applicable to this standard are listed in Appendix A.

Development Information

Word Count: 36 Thousand words Pages: 24 pages

Superseded by the following standards

GB/T 39077-2024 Test methods for detecting detrimental phase in austenitic-ferritic(duplex) stainless steels

Referenced Standards

GB/T 229-1994 Metallic materials—Charpy notch impact test GB/T 229-2007 Metallic materials—Charpy pendulum impact test method GB/T 229-2020 Metallic materials—Charpy pendulum impact test method GB/T 2650-1989 Method of impact test for welded joint GB/T 2650-2008 Impact test methods on welded joints GB/T 2650-2022 Destructive tests on welds in metallic materials—Impact tests GB/T 13298-1991 Metal—Inspection method of microstructure GB/T 13298-2015 Inspection methods of microstructure for metals GB/T 17897-1999 Test of pitting corrosion resistance of stainless steels in the ferric chloride solution GB/T 17897-2016 Corrosion of metals and alloys—Corrosion test for pitting corrosion resistance of stainless steels in the ferric chloride solution GB/T 30067-2013 Standard terminology relating to metallography

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