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At Nasir Nickel Alloys in Manama, Bahrain, Duplex Steel Bolts are designed to provide exceptional strength, corrosion resistance, and durability for demanding industrial and structural applications. Manufactured from high-performance duplex stainless steel with a balanced austenitic-ferritic microstructure, these bolts resist pitting, crevice corrosion, and stress-corrosion cracking even in chloride-rich and chemically aggressive environments. Precision-engineered for dimensional consistency and mechanical reliability, Duplex Steel Bolts ensure secure fastening under high-pressure and high-temperature conditions. Ideal for chemical processing, petrochemical, oil and gas, power generation, and marine industries, they deliver robust, long-lasting, and high-performance fastening solutions.
Duplex Steel Bolts are primarily composed of chromium, nickel, molybdenum, and nitrogen, forming a balanced austenitic-ferritic microstructure. This composition provides high tensile and yield strength, excellent toughness, and superior resistance to pitting, crevice corrosion, and stress-corrosion cracking. The bolts maintain dimensional stability, mechanical integrity, and performance under thermal cycling, high-pressure, and mechanically demanding conditions. Combining corrosion resistance, durability, and high strength, Duplex Steel Bolts ensure long-lasting, reliable performance in chemical, petrochemical, marine, offshore, and power generation applications where conventional stainless steels may fail.
| Specifications | ASTM A479 & ASME SA479 |
| Standard | DIN, ASTM, BS and all International Standards |
| Length | 3 to 200 MM |
| Duplex Steel Nut and Bolts Size | M3 To M56 3/6″ to 2″ |
| Duplex Steel 2205 Machine Screws Size | M1.6 To M12 |
| Duplex Steel 2205 Washers Size | M3 To M56 3/6″ to 2″ |
| Duplex Steel Bolts | Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
| 7.8 g/cm3 | 1350 °C (2460 °F) | Psi – 80000 , MPa – 550 | Psi – 116000 , MPa – 800 | 15 % |
At Nasir Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Duplex Steel Bolts in Manama, Bahrain, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Bahrain, allowing us to maintain a vast inventory of over 16,000 tons of premium-quality materials readily available in stock. We are dedicated to delivering superior products and services, ensuring reliability and excellence for our global clientele.
Contact us to get a quick quote for your requirement.
Duplex Steel Bolts are widely used in industries that demand high-strength, corrosion-resistant, and durable fastening solutions. They are essential in chemical and petrochemical plants for securing equipment, piping systems, reactors, and pressure vessels exposed to acids, chlorides, and oxidizing chemicals. Oil and gas industries rely on these bolts in offshore platforms, subsea structures, and high-pressure systems. Power generation facilities employ Duplex Steel Bolts in turbines, boilers, and cooling water systems. Marine and desalination plants utilize them for seawater-resistant fastening. These bolts provide secure connections, structural integrity, leak-tight performance, and long-term reliability in harsh, corrosive, and high-pressure environments.
