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Super duplex stainless steel pipes are alloyed with chromium and nickel and contain molybdenum, nitrogen and copper. These additions to the chemical composition of duplex steel pipes give them a higher tensile strength than other metals, such as mild or carbon steel. The primary benefit of super duplex steel pipes is the combination of properties from both ferritic and austenitic stainless steels, which are resistant to corrosion in saltwater, acids and chlorides. Super duplex stainless steel pipes also have higher heat resistance due to their duplex structure, making them a great choice for applications that require excellent mechanical properties with relatively low manufacturing costs.

The difference when comparing super duplex and duplex steel pipes is the higher molybdenum and chromium content in the former. The well-balanced dual-phased structure helps give these pipes a combination of strength and corrosion resistance. To make these steel pipes more cost-effective, they are alloyed with nickel and molybdenum in lower amounts. Chloride environments are not a problem for super duplex steels are they have effective chloride resistance. These pipes have more tensile and yield strength than austenitic or ferritic steel grades. Alteration in the thickness of the pipes is possible without compromising on quality and durability. Super Duplex pipes can withstand marine environments effectively. Hence, these pipes are used in offshore coastlines, fire-fighting systems, subsea coastlines, injection and ballast water systems, oil & gas industries, and oil & gas plants.

Super duplex steel pipes resist stress corrosion cracking (SCC) found in superalloys. Super duplex pipe offers a higher temperature, pressure and environmental stress resistance than a conventional duplex or super stainless steel, making it ideal for industrial applications. Furthermore, super duplex steel pipe price is relatively favourable compared to other high-end materials like superalloys, making it an attractive choice for those who need reliable performance on tight budgets.

FAQ's for Super Duplex Steel Pipes

Super Duplex stainless steel pipes are known for their high strength and excellent corrosion resistance. These pipes are made from a special stainless steel alloy consisting of austenitic, ferritic and duplex microstructures. It is also referred to as a “super duplex” due to its higher mechanical properties. Super Duplex stainless steel pipes are often used in applications with high temperature or pressure, such as oil and gas pipelines, offshore structures, and marine engineering. Process of Welding Super Duplex Stainless Steel Pipe Welding Super Duplex stainless steel pipe requires special consideration due to its high alloy content. It is essential to use slower speeds and lower amperages than mild steel or austenitic stainless steel to prevent heat input damage. Additionally, an appropriate filler metal should be used to match the chemistry of the welded material. Preheat and interpass temperatures should also be monitored carefully during the welding process. Finally, proper post-welding heat treatment is essential for ensuring optimal corrosion resistance in the finished product.

The price of standard Duplex Steel Pipes products is between ₹450 - ₹550 per Kg.

PIYUSH STEEL

India

Bullion Pipe

India

SATYAM IMPEX

India

Nirav overseas

India

MULTINOX INC

India

Leoscor Export

INDIA

Kenco tubes

India

Nitron Alloys Overseas

India

Aspirinox Alloys Inc.

India

Skyland Metal and Alloys Inc

India

Neelkamal Alloys LLP

India

Nirvana Piping Solutions

India

Neo Impex

India

arihant overseas

India

SANGHVI METAL CORPORATION

India

NILAM STEELAGE INDIA PRIVATE LIMITED

India

NEXTGEN STEEL AND ALLOYS

India

Sangeeta Metal Corporation

India

Sanghvi Enterprises

India

Rishabh Steel Industries

India

Priminox Overseas

India

Zhejiang Zhonggang Steel

China

Leoscor Alloys & Steel Inc.

India

Kriton Steel And Engineering Co.

India

Katariya Steel

India

JAYDEEP STEELS

India

Bhansali Overseas

India

RENINE METALLOY

India

Nandishwar steel

India

mbm tubes pvt.ltd

India

NAMAN PIPE AND TUBES

India

PIYUSH STEEL PIPES

India

HIND METAL SYNDICATE PVT LTD

India

online metals india

India

RAJVEER STAINLESS AND ALLOYS

India

Aurum Alloys Engg. LLP

India

CITIZEN METALS PVT. LTD

India

Simplex Steel Industries

India

Shubh Alloys INC

India

M.A.International

India

Jaiman Metalloys LLP

India

Nexus Impex

India

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