Super Duplex S32750 S32760 SS Pipe WELDED PIPES

Today, welded pipes/Super Duplex S32750 S32760 SS Pipe play an essential role in virtually every industry. Welded pipes often have tighter dimensional tolerances than seamless steel pipes. As a result, they are better suited to environments where corrosion resistance is a greater factor than pressure containment. Welded tubes and pipes are generally more cost effective than the equivalent

Special Piping Materials' welded pipes/Super Duplex S32750 S32760 SS Pipe have been fully tested to international standards to ensure we only supply the highest quality products.

As a leading supplier of Welded Pipes, we offer

• Welded Duplex Pipe

• Welded Super Duplex Pipe

• Welded Stainless Steel Pipe

• Welded Nickel Alloy Pipe

Our welded pipes contain material in accordance with:

• ASTM A928 • ASTM A358 • ASTM A249

• ASTM A409 • ASTM A790 • ASTM B705

Dimensions in accordance with:

• ANSI B36.19 • ANSI B36.10.

Call your sales office today for more information about our range of welded pipes.

DUPLEX FROM SPECIAL PIPING MATERIAL (SPM)

Duplex Steel appeared in the marketplace due to the need to combat the shortcomings of austenitic and ferritic steels. It was found that a mixture of these two materials resulted in higher strength, reduced weight, good weld ability and increased resistance to stress corrosion cracking.

Unlike similar steels, duplex also displays an improved resistance to localised corrosion, particularly pitting, crevice corrosion and stress corrosion cracking. Due to its ferritic qualities, duplex steel also shows very good resistance to stress corrosion cracking when compared to standard austenitics. In some cases, the strength of duplex steel can be up to double that of the most commonly used grades of stainless steel.

Another benefit of duplex steels is that because it has a lower nickel and molybdenum content than other austenitic stainless steels, it can prove to be a more cost effective option due to its lower alloy content.

These benefits clearly show why Duplex steels have become popular in applications such as pressure vessels, cooling pipes and storage tanks.

Duplex becomes brittle at extreme temperatures so its use is normally restricted to a maximum temperature of 300 degrees. Duplex also shows signs of embrittlement at –50 degrees.

Benefits:

• Stronger than 300 series stainless steel which also brings weight advantages

• High resistance to pitting, crevice corrosion and stress corrosion cracking

• Higher heat conductivity and lower thermal expansion than austenitic steels

Uses:

• Pipes for production and transportation of oil and gas

• Structural and mechanical components

• Heat exchangers

• Cooling pipes

For more information on our range of duplex steel products, please contact your local SPM sales adviser today.