Alloy 2507 (SAF2507®)

Alloy 2507 (SAF 2507®) Fasteners (ASTM A479 F53/UNS S32750/1.4410)

SAF2507® is a Super Duplex Stainless Steel for service in highly corrosive conditions.  As a super duplex stainless steel, the SAF2507® combines the desirable aspects of both austenitic and ferritic grades.  The higher chromium, molybdenum and nitrogen contents result in a Pitting Resistance Equivalent number (PREN) of >41, providing pitting and crevice corrosion resistance superior to austenitic and duplex stainless steels in almost all corrosive media, and a Critical Pitting Temperature exceeding 50°C.

Supplied in the annealed condition, the SAF2507® achieves yield strengths of 80ksi (550Mpa), greater than most austenitic and duplex stainless steel grades. It cannot be hardened by heat treatment but can be strengthened by cold working. The SAF2507® also exhibits a low coefficient of thermal expansion and higher heat conductivity than austenitic steels and is suitable for working temperatures up to 300°C. Alloy 32750 is listed in NACE MR 0175 for sour service and having gained ASME Approval for Pressure Vessel applications it can be used in a wide variety of applications where corrosion resistant materials are required.  Applications include Oil & Gas, Subsea, Marine, Chemical Processing, Pulp & Paper Production.

SAF2507® Fasteners including Bolts, Nuts, Socket Capscrews, Washers, Studs, Studbolts, Socket Setscrews, Socket Countersunk Screws & machined components to all recognised standards drawings as well as customer drawings can be produced at Beacon Corporation Limited.

*Information is given as guidance only

Beacon Corporation Limited specialise in the manufacture and supply of specialist and non standard fasteners.