Duplex stainless steel is a special stainless steel material in which ferrite phase (α phase) and austenite phase (γ phase) each account for a certain proportion in the solid solution structure, and the minimum phase content is usually 30%. Because it combines the advantages of ferrite stainless steel and austenite stainless steel, such as high strength, good plasticity and...

Dual-phase steel seamless pipe, with its high strength and good toughness, has shown a wide range of application prospects in many engineering fields. This unique mechanical property is largely due to the characteristics of its microstructure. This article will explore in depth the influence mechanism of the microstructure of dual-phase steel seamless pipe on its high-strength characteristics....

ASTM A269 is a widely used standard for seamless and welded stainless steel pipes, especially for piping systems in the food, chemical, pharmaceutical and other industries used in low and high temperature environments. The standard covers material requirements, manufacturing processes, dimensional tolerances, surface quality, and specifications for inspection and testing. For welded seamless...

ASTM A789/A790 is an important specification for seamless and welded ferritic/austenitic stainless steel pipes for general use. 31803 Duplex Steel Welded Coil is a high-performance material that has been widely used in modern industry. In order to ensure the quality and performance of these pipes, a series of specific inspection and testing standards and requirements must be followed. The main...

As a high-performance pipeline material, duplex steel seamless pipe plays a vital role in modern industry. Its unique dual-phase structure - the coexistence of austenite and ferrite - gives it excellent mechanical properties and corrosion resistance, making it widely used in many fields.  1. Definition and characteristics of duplex steel seamless pipeDuplex stainless steel seamless pipe,...

Duplex steel, an alloy that combines both austenitic and ferritic structures, is renowned for its excellent mechanical properties and corrosion resistance. Continuous suspension tubing made from duplex steel has gained significant attention in various industries due to its robustness and versatility. This article explores the properties, applications, and manufacturing processes of duplex steel...