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Super Duplex Steel Fasteners S32750 are top-notch, corrosion-resistant fastening solutions designed to thrive in the toughest industrial, marine, and chemical settings. Crafted from Super Duplex stainless steel S32750, these fasteners boast remarkable tensile strength and outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking. Suppliers in Hamilton, New Zealand, like Aria Fasteners, guarantee precise threading, consistent dimensions, and adherence to international quality standards. These fasteners are perfect for securing bolts, nuts, screws, and stud bolts in pipelines, pressure vessels, flanges, and machinery that demand both high mechanical performance and resilience against harsh corrosive environments.
Made from a blend of iron, chromium, nickel, molybdenum, and nitrogen, Super Duplex Steel Fasteners S32750 offer exceptional resistance to chloride-induced corrosion and chemical attacks. On the mechanical side, they deliver high tensile and yield strength, impressive fatigue resistance, and stability under heavy loads and high temperatures. Their unique duplex microstructure strikes a balance between toughness and ductility, effectively preventing stress corrosion cracking, pitting, and crevice corrosion, which ensures dependable performance in offshore, chemical, and petrochemical applications.
| Specification | IS, BS, ASTM, ASME |
| Grade | Super Duplex Steel | UNS S32750 | S32760 |
| Standard | ASTM A479 ASME SA479 |
| Length | 3mm to 200mm |
| Form | Screw, Nuts, Bolts, Washers |
| Size | 3/6″ to 2″, M3 – M56, Custom Sizes |
| Application | Oil & Gas, Heat exchanger and condenser, Automobile Industry, Engineering, Power plants, Refineries & Petrochemicals, Ship building, Desalination Plants |
| 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 % |
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Super Duplex Steel Fasteners S32750 are widely used in demanding applications due to their superior strength and corrosion resistance. These fasteners are ideal for the oil and gas industry, including offshore platforms and subsea equipment. They are also used in chemical processing plants, desalination plants, and power generation facilities. Additionally, S32750 fasteners are suitable for marine environments and shipbuilding due to their excellent resistance to seawater corrosion. Their durability and reliability make them essential in high-stress, corrosive environments.
These fasteners are commonly found in chemical processing plants, offshore oil and gas platforms, desalination units, power generation facilities, and marine installations. They excel at securing flanges, heat exchangers, pipelines, pressure vessels, and industrial machinery that face highly corrosive or chloride-rich environments. Super Duplex Steel Fasteners S32750 help maintain joint integrity, resist loosening, and provide long-lasting reliability even in extreme conditions. They are also widely used in heavy industrial manufacturing, petrochemical projects, and infrastructure developments.
Aria Fasteners is a leading manufacturer and supplier of high-quality fasteners in Hamilton, New Zealand, with over 8 years of experience serving global industries.
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