Duplex Stainless Steel Pipes and Tubes combine the best properties of both austenitic and ferritic stainless steels. These products offer excellent resistance to pitting, crevice corrosion, and stress corrosion cracking, making them an ideal choice for industries exposed to harsh environments like oil refining, chemical processing, and marine applications.
At Xintongda, we manufacture Duplex stainless steel pipes and tubes that offer superior strength, enhanced resistance to corrosion, and improved fatigue and impact resistance. These properties ensure a longer life cycle and greater reliability in critical applications, reducing maintenance costs and operational downtime.
Our Duplex Stainless Steel pipes are engineered to meet international standards, ensuring that each product is of the highest quality. With their remarkable toughness and resistance to cracking, these pipes and tubes are well-suited for use in high-pressure systems and extreme conditions.
Why Choose Xintongda Duplex Stainless Steel Pipes and Tubes?
①Excellent corrosion resistance and enhanced mechanical properties
②High strength and resistance to stress corrosion cracking
③Ideal for high-pressure and demanding applications
④Reliable performance with long-term durability
Looking for durable, high-performance Duplex stainless steel pipes? Contact us now to discuss your needs and get a personalized quote!
Duplex stainless steel pipes and tubes, combining austenitic and ferritic phases, offer a unique balance of high strength, corrosion resistance, and durability for demanding industrial applications. Newstar Hardware provides grades like 2205 (UNS S32205) and 2507 (UNS S32750), manufactured to ASTM A790 and A890, with sizes from 1/2" to 24" OD and wall thicknesses up to Schedule 80. The dual-phase microstructure gives these pipes/tubes twice the yield strength of 316 stainless steel (450MPa-550MPa), while maintaining elongation over 25%, ideal for high-pressure pipelines and structural supports. Their high PREN (28-43) ensures resistance to pitting, crevice corrosion, and stress corrosion cracking in chloride environments, outperforming austenitic grades in seawater, oil & gas, and chemical processing.
2205 pipes suit moderate chloride conditions (up to 20,000ppm), while 2507 tubes excel in extreme chlorides (up to 100,000ppm) for offshore platforms and desalination plants. Seamless and welded options are available, with NACE MR0175 compliance for sour gas applications. Surface finishes include mill, pickled, or passivated, with non-destructive testing (UT, MT) ensuring material integrity. Custom fabrication services (beveling, threading, cladding) address specific project needs, making duplex stainless steel pipes/tubes essential in safety-critical industries.
