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Address - Plot No.1467, Kalamboli, Navi Mumbai - 410218

SUPER DUPLEX STEEL TUBE

Super Duplex Steel Fasteners are high-performance fastening components manufactured from advanced super duplex stainless steel alloys, offering exceptional mechanical strength and superior corrosion resistance. These fasteners provide outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking in highly aggressive and chloride-rich environments.

Super Duplex Steel Fasteners are available in various forms such as bolts, nuts, screws, studs, washers, and threaded rods. They are extensively used in offshore, oil & gas, chemical processing, desalination, and marine applications where reliability and long service life are critical.

Super Duplex Steel Fasteners are available in high-performance super duplex grades to meet severe service conditions. The most commonly supplied grades include Super Duplex S32750 (UNS S32750) and Super Duplex S32760 (UNS S32760), offering very high strength, excellent PREN values, and outstanding resistance to seawater corrosion.

Super Duplex Steel Fastener S32750 Super Duplex Steel Fastener S32760

Super Duplex Steel Fastener Manufacturer in India | UNS S32750 & S32760 Fastener Supplier

Applications of Super Duplex Steel Fasteners

● Offshore Oil & Gas Platforms
● Subsea & Seawater Handling Systems
● Chemical & Petrochemical Processing Plants
● Desalination & Reverse Osmosis Systems
● Power Generation & Pressure Equipment
● Marine & Heavy Engineering Applications

Specification Table of Super Duplex Steel Fasteners

Standard ASTM A182, ASTM A479, ASTM F593, ASTM F594, ASME B18, DIN, ISO
Fastener Type Bolts, Nuts, Screws, Studs, Washers, Threaded Rods
Size M3 to M72 / Custom Sizes Available
Thread Type Metric / UNC / UNF / BSW
Surface Finish Plain, Pickled, Passivated, Polished
Manufacturing Hot Forged / Cold Forged / Machined

Super Duplex Steel Fastener Grades (Sub-Products)

● Super Duplex S32750 – Excellent resistance to pitting, crevice corrosion, and stress corrosion cracking in aggressive environments
● Super Duplex S32760 – Higher PREN value with superior resistance to seawater and chloride-rich conditions

Mechanical Properties of Super Duplex Steel Fasteners (Typical)

Grade Yield Strength (MPa) Tensile Strength (MPa) Elongation %
Super Duplex S32750 550 800 25
Super Duplex S32760 550 800 25