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Super Duplex

What is ASTM A240?

ASTM A240 is the ‘Standard Spec for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet and Strip for Pressure Vessels and General Use’.

What is ASTM A790?

A790 is the ‘Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe’.

What is ASTM A479?

ASTM A479 is the ‘Standard Specification for Stainless Steel Bars and Shapes for use in Boilers and Other Pressure Vessels’.

What is ASTM A276?

ASTM is the American Society for Testing and Materials, and A276 is the ‘Standard Specification for Stainless Steel Bars and Shapes’.

How does 316 compare with super duplex stainless steels?

Super duplex stainless steel is 3-4x higher yield strength, 2x the resistance to pitting corrosion, yet less than twice the cost than 316.

How does 904L compare with super duplex stainless steels?

Super duplex stainless steels have been used to substitute 904L (UNS N08904, 1.4539) austenitic stainless steels for many applications.

How does 254SMO compare with super duplex stainless steels?

254SMO (UNS S31254, ASTM F44, 1.4547) is a super austenitic stainless steel, that can be substituted by super duplex for many applications.

What is the UNS S32750 casting grade equivalent?

The nearest equivalent cast specifications to UNS S32750 are ASTM A890, ASTM A995 and ASME SA351/995 grade CE3Mn or 5A.

What is the UNS S32760 casting grade equivalent?

The nearest equivalent casting specifications for UNS S32760 are ASTM A890, ASTM A995 and ASME SA351/995 grade CD3MWCuN or 6A.

What is SAF2507?

SAF2507 is a registered trademark of Sandvik. SAF stands for Sandvik Austenite Ferrite, whilst 2507 references the UNS S32750 caption.

What is S31803?

S31803 is the Unified Numbering System (UNS) designation for the original duplex stainless steel.

What is super duplex pipe?

The superior combination of strength and corrosion resistance achieved by super duplex stainless steels makes them an ideal choice for piping.

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