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Malik Fasteners, located in Manama, Bahrain, has built a solid reputation as a reliable manufacturer and supplier of Duplex Steel Fasteners, designed for outstanding strength and remarkable resistance to corrosion. These fasteners are crafted from duplex stainless steel, which merges austenitic and ferritic structures to provide top-notch mechanical performance and durability. Known for their ability to withstand stress corrosion cracking, pitting, and crevice corrosion, Duplex Steel Fasteners are perfect for critical industrial applications. Malik Fasteners prioritizes precision engineering and consistent quality, delivering dependable fastening solutions for the chemical, petrochemical, marine, and offshore sectors, where safety and long-lasting performance are crucial.
Duplex Steel Fasteners are made from a well-balanced mix of austenitic and ferritic stainless steel, usually containing 22% chromium, 5–6% nickel, 3% molybdenum, and some nitrogen. This blend guarantees high tensile and yield strength, excellent toughness, and outstanding fatigue resistance. The duplex microstructure significantly boosts resistance to stress corrosion cracking and localized corrosion, especially in chloride-rich environments. Thanks to their robust mechanical properties, these fasteners promise durability and long-term reliability, making them perfect for demanding applications in aggressive chemical, marine, and offshore settings.
| Phosphorus | Sulphur | Silicon | Carbon | Manganese | Nickel | Molybdenum | Nitrogen | Copper | Chromium |
|---|---|---|---|---|---|---|---|---|---|
| 0.035 % max | 0.02 % max | 0.80 % max | 0.03% Max | 1.20 % max | 6.00 – 8.00 % | 3.00 – 5.00 % | 0.24 – 0.32 % | 0.50 % max | 24.0 – 26.0 % |
| Grade | YS (MPa) | UTS (MPa) | % Elongation | Hardness(BHN) |
| UNS S32750 | 550 min. | 795 min. | 15 min. | 310 max. |
| UNS S32760 | 550 min. | 750 min. | 25 min. | 270 max. |
| Specifications | : | ASTM A182 / ASME SA182 |
| Size | : | 1/8″ NB TO 24″ NB |
| Standards | : | ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc. |
| Class / Pressure | : | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc. |
| Standard | : | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc. |
| Grades | : | S31803 / S32205 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F6 |
To satisfy our clients needs by providing high quality products at competitive price as per the schedule and to maintain long term relationship with our clients.
Duplex Steel Fasteners find extensive use in industries that need high-strength, corrosion-resistant fastening solutions. They are particularly suited for chemical processing plants, oil and gas facilities, petrochemical industries, marine equipment, and offshore structures. Common applications include flanges, pipelines, pressure vessels, heat exchangers, and structural components that face harsh or chloride-rich conditions. Their impressive mechanical strength, corrosion resistance, and durability ensure a long service life, lower maintenance needs, and improved safety.
At Malik Fasteners, we prioritize the safe packaging of Duplex Steel Fasteners to maintain their quality and prevent damage. Each binder is thoroughly inspected and wrapped in protective packaging to ensure it arrives in the best possible condition. We offer a range of packaging options, including drop boxes and containers in sizes to suit your needs. Our durable packaging solutions protect your fasteners during transit and storage, assuring they are ready for immediate use in your most demanding applications.
Malik Fasteners is a leading manufacturer and supplier of high-quality fasteners in Manama, Bahrain, with over 8 years of experience serving global industries.
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