GB/T 39077-2024 Active
GB/T 39077-2024 Test methods for detecting detrimental phase in austenitic-ferritic(duplex) stainless steels
Abstract
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.
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Active |
| Standard Code | GB/T 39077-2024 |
| CCS | Iron and steel products |
| ICS | Comprehensive equipment for the oil and gas industry |
| Implement Date | 2025-02-01 |