Author(s)

YanYan Hong^*, XiaoPing Huang, Di Lu

Affiliation(s)

School of Intelligent Transportation, Wuhan Business University, Wuhan 430056, Hebei, China.

Corresponding Author

YanYan Hong

ABSTRACT

Advancements in metallurgical technology, coupled with the ever-growing industrial demand, have continuously driven the development of new materials. High-nitrogen austenitic stainless steel (HNASS), a resource-saving material, has been extensively investigated and rapidly developed owing to its high strength, high plasticity, and excellent corrosion resistance. This paper chronologically outlines the development of Cr–Mn–N series HNASS, which has evolved primarily through nickel-saving high-manganese austenitic stainless steel (such as AISI 200 series stainless steel), low-carbon molybdenum-containing austenitic stainless steel (such as AL6XN), and nickel-free HNASS (such as P900, developed by the VSG company of Germany). The development of HNASS is constrained by advancements in smelting technology. This paper outlines the current smelting methods for high-nitrogen steel, including atmospheric pressure smelting and high-pressure smelting, and summarizes the issues encountered during the smelting process. Welding technology is another key factor limiting the industrial application of HNASS. Extensive research has been conducted to reduce the number of welding defects in high-nitrogen steel. By optimizing welding processes and improving welding filler materials, welding joints with good performance can be obtained. However, welding technology for HNASS with universal applicability and industrialization potential still warrants further research.

KEYWORDS

High-performance materials; High-nitrogen austenitic stainless steel; Smelting technology; Pressure electric-slag remelting; Welding technology

CITE THIS PAPER

YanYan Hong, XiaoPing Huang, Di Lu. Research progress on high-nitrogen austenitic stainless steel. Eurasia Journal of Science and Technology. 2026, 8(1): 7-14. DOI: https://doi.org/10.61784/ejst3128.

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