Tag Archives: duplex stainless steel

Duplex stainless steel is a kind of stainless steel which has both austenite and ferrite structure and two phases are independent and contain a large amount. The third generation duplex stainless steel is also called super duplex stainless steel pre (CR% + 3.3 ...

Duplex stainless steel has been continuously developed and improved over the years, and some fields have replaced austenitic stainless steel. In recent years, the use of super duplex stainless steel has also created favorable conditions for expanding the use of ...

1 The second-generation duplex stainless steel is generally called standard duplex stainless steel. Its composition is ultra-low carbon and nitrogen. Its typical composition is 22% cr + 5% ni + 0.17% n, compared with the first generation duplex stainless steel. ...

The sudden emergence of duplex stainless steel pipe has become one of the major breakthroughs in the stainless steel pipe industry in the past few decades. Duplex stainless steel has good corrosion resistance and high strength, and is the best ...

1. Introduction to duplex stainless steel Duplex stainless steel refers to a stainless steel in which the solid solution structure is composed of a ferrite and austenite duplex, and one of the comparative examples is about 45% to 55%. Due ...

Duplex stainless steel has two kinds of metal phase structure, so the duplex stainless steel can combine the properties of ferritic stainless steel and austenitic stainless steel by properly controlling the chemical composition and heat treatment process, that is, the ...

1 Overview In recent years, the output of the world’s duplex stainless steel is growing, accounting for about 1% to 2% of the total stainless steel production. The output of China’s duplex stainless steel has grown significantly with the production ...

The biphase in the name of the duplex stainless steel is mainly derived from the microstructure of the alloy. The duplex stainless steel usually contains about 50/50 austenite and delta ferrite phase mixture. Compared to austenitic stainless steel (for example, ...

The attractive combination of high strength, extensive corrosion resistance and moderate weldability seems to provide great potential for increasing the market share of duplex stainless steel. However, it is necessary to understand the limitations before using duplex stainless steel. The ...

Duplex stainless steel is becoming more and more common. They can be produced in all major steel mills. The reasons for its general application are as follows: higher strength leads to weight saving, stronger corrosion resistance, especially stress corrosion cracking, ...