GB/T 39077-2024 Active National standards

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

Publish Date: 2024-07-24 Implement Date: 2025-02-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 39077-2024

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Iron and steel products

ICS Name: Comprehensive equipment for the oil and gas industry

Publish Date: 2024-07-24

Implement Date: 2025-02-01

Pages: 36 pages

Scope

This document specifies the test conditions, testing methods, and acceptance requirements for the detection of harmful phases in austenitic-ferritic (duplex) stainless steels. The testing methods include microstructural examination, Charpy impact testing, and iron chloride corrosion testing. This document is applicable to the detection of harmful phases precipitated in austenitic-ferritic (duplex) stainless steels during production and manufacturing processes (such as heat treatment or welding) or during long-term use at certain temperatures. This document is not applicable to situations where the toughness and corrosion resistance of austenitic-ferritic (duplex) stainless steels are reduced due to other factors. Note: For the product grades primarily applicable to this document, please refer to Appendix A.

Development Information

Word Count: 55 Thousand words Pages: 36 pages

Replace the following standards

GB/T 39077-2020 Test methods for detecting detrimental phases in lean duplex austenitic-ferritic 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 17897-2016 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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