UNS S32750 Super Duplex Hex Bolts

UNS S32750 Super Duplex Hex Bolts by Aanuraj Fasteners Pvt. Ltd. are manufactured for demanding applications where high strength, excellent corrosion resistance, and long-term reliability are required. Also known as Super Duplex 2507 and SAF 2507, these fasteners combine austenitic and ferritic phases to provide high mechanical strength and excellent resistance to chloride-induced corrosion.

Hot-forged Super Duplex Hex Bolts are manufactured in metric and inch sizes, with solution annealing and rapid water quenching as required by the applicable material specification. These UNS S32750 fasteners are suitable for offshore, marine, oil & gas, chemical processing, desalination, and other critical industrial applications.

Key Features

• Super Duplex 2507 Material: Manufactured from UNS S32750 Super Duplex stainless steel for high strength and excellent corrosion resistance.
• High Mechanical Strength: Super Duplex 2507 provides high tensile and yield strength, making these bolts suitable for demanding structural and pressure applications.
• Excellent Pitting Resistance: High chromium, molybdenum, and nitrogen content provides strong resistance to pitting and crevice corrosion in chloride environments.
• Resistance to Stress Corrosion Cracking: The duplex microstructure provides excellent resistance to chloride stress corrosion cracking compared with many conventional austenitic stainless steels.
• Hot Forged Construction: Hex bolts are hot forged to achieve reliable mechanical performance and dimensional integrity.
• Solution Annealed: Controlled solution annealing followed by rapid water quenching helps maintain the required duplex microstructure.
• Metric & Inch Threads: Available with Metric Coarse/Fine and Inch UNC/UNF threads according to customer requirements.
• Material Traceability: Material Test Certificates and inspection documentation can be supplied as required.

Key Applications

UNS S32750 Super Duplex Hex Bolts are commonly used in:

• Oil & Gas: Offshore platforms, subsea equipment, pipelines, manifolds, and processing systems.
• Marine & Subsea: Marine structures, seawater equipment, shipbuilding, and subsea machinery.
• Desalination Plants: Reverse osmosis systems, seawater piping, pumps, and high-pressure equipment.
• Chemical Processing: Chemical plants, storage systems, process equipment, and corrosive service environments.
• Petrochemical Plants: Piping systems, pressure equipment, heat exchangers, and process machinery.
• Power Generation: Cooling-water systems and equipment exposed to chloride-containing environments.
• Offshore Engineering: Structural and mechanical assemblies requiring high strength and corrosion resistance.

Why Choose Aanuraj Fasteners?

• Quality-Controlled Manufacturing: Each production batch is manufactured and inspected according to the applicable product requirements.
• Material Traceability: Material documentation and EN 10204 3.1 MTC can be provided where specified.
• Precision Threading: Accurate thread dimensions are maintained for reliable assembly and fit.
• Custom Sizes: Metric and inch sizes, thread configurations, lengths, and dimensional requirements can be supplied according to customer specifications.
• Industrial Fastener Expertise: Aanuraj Fasteners specializes in stainless steel, duplex, super duplex, nickel alloy, and other high-performance industrial fasteners.
• Application Support: Technical requirements can be reviewed based on material grade, size, standard, quantity, and service conditions.

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