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

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Scope

This standard specifies the test methods for detecting detrimental phase in
three types of lean duplex austenitic-ferritic stainless steels, namely the
microstructure testing method, the Charpy impact test method, the ferric
chloride corrosion test method.
This standard applies to the testing of precipitated detrimental phase in lean
duplex austenitic-ferritic stainless steel in the production, manufacturing
process (such as heat treatment or welding) or long-term use at a certain
temperature. It does not apply to the situations where the toughness and
corrosion resistance of lean duplex austenitic-ferritic stainless steel are reduced
due to other reasons. Refer to Appendix A for the main applicable product
designations of this standard.

Basic Data

Standard ID	GB/T 39077-2020 (GB/T39077-2020)
Description (Translated English)	Test methods for detecting detrimental phase in lean duplex austenitic-ferritic stainless steels
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	H24
Classification of International Standard	77.040.99
Word Count Estimation	22,215
Date of Issue	2020-09-29
Date of Implementation	2021-04-01
Issuing agency(ies)	State Administration for Market Regulation, China National Standardization Administration