2205 Duplex Stainless Tube

2205 duplex stainless steel is equivalent to S32205, S31803, 1.4462 and X2CrNiMoN22-5-3.  As a leading duplex stainless steel supplier in China, Ronsco is enowned for our exceptional production standards, strict quality control, extensive inventory, and unwavering commitment to excellence. We specialize in supplying 2205 duplex  tube & pipe in various OD, ID, wall thickness and length, to meet customers' needs for different projects.

In addition to on-demand production, we also offer an large inventory, regularly stock a variety of materials and specifications. Regardless of project size, we can all meet deadlines and deliver final products that meet or exceed industry standards.

2205 stainless steel tube is the most widely used duplex (ferritic/austenitic) stainless steel. Because of its high chromium, molybdenum and nitrogen contents,  duplex 2205 offers excellent general corrosion resistance and localised corrosion including intergranular, pitting and crevice corrosion. The grade is also resistant to chloride stress corrosion cracking at temperatures of up to about 150°C.  

Duplex 2205 tube is known for its exceptional mechanical properties. It excels in bearing tensile forces, good durability and excellent ductility, proves resistant to fracturing even under significant deformation. Retaining high impact toughness at low temperatures enhances its reliability in cold environments. Additionally, the 2205 material generally maintains moderate hardness, providing a degree of abrasion resistance.

• Corrosion Resistance: The unique dual-phase microstructure of 2205 stainless steel tube combines austenite and ferrite phases, sets it apart from conventional austenitic stainless steels like 304 and 316 stainless steel, endows it with superior resistance to stress corrosion cracking and intergranular corrosion. At the same time, the high chromium of alloy 2205 forms a passive oxide layer on the surface, protecting the tube from corrosion, while molybdenum enhances its resistance to pitting and crevice corrosion. The synergistic effect of all parties enhances this material's overall resistance to a wide range of corrosive environments, including acidic and alkaline solutions, seawater, and industrial atmospheres.

• Fatigue Resistance: One of the standout features of the grade 2205, also known as stainless steel 1.4462, is its resistance to fatigue crack initiation and propagation, even under fluctuating loads. The combination of high strength and ductility in this material allows it to absorb energy effectively, reducing the likelihood of fatigue failure. Additionally, the inherent corrosion resistance of 2205 stainless steel plays a crucial role in maintaining its fatigue strength over time, as corrosion-induced damage can accelerate fatigue crack growth.

• Excellent Weldability: Alloy 2205 contributes to its superior welding performance, a critical characteristic that sets it apart in various industrial applications. One of the key advantages of welding this materials is its ability to maintain a balanced combination of strength, toughness, and corrosion resistance in the welded zone, forming of a strong weld joint with minimal risk of welding defects such as hot cracking and distortion.

The steel 2205 is also known as S32205, S31803 stainless steel, can be further improved the surface quality and performance through Acid Pickling (AP), Mechanical Polishing (MP), Bright Annealed (BA), and Electropolished (EP). These treatment methods make the 2205 tube more suitable for applications required high performance and excellent surface quality, such as chemical processing, marine engineering, and structural construction.

2205 duplex tube & pipe is is a versatile material renowned for its unique properties, offers reliable solutions across diverse industries, especially chemical processing, marine engineering, structural construction and food processing filed, drives innovation and continuous development due to its exceptional performance, versatility, and durability.

Ronsco is a supplier with more than 28 years of experience in the metal tubes field, we always adheres to the business phiosophy of "customer-centered", tries its best to meet the requirements of customers and pursues win-win cooperation with customers. Are you looking for a reliable tubes manufacturer ! Contact Us Now! Email: manager@ronsteel.com