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Sayam Nickel Alloys, based in Hyderabad, is a reputable manufacturer and supplier of high-quality Super Duplex Steel Bolts. These bolts are crafted for outstanding strength, corrosion resistance, and durability, making them reliable in tough industrial settings. With advanced metallurgy and precision machining, Sayam Nickel Alloys guarantees that each bolt adheres to rigorous international quality standards. The company caters to various sectors, including oil and gas, chemical processing, offshore platforms, marine engineering, and power generation, providing fastening solutions that can handle high pressure, extreme temperatures, and corrosive environments. Super Duplex Steel Bolts are a trusted choice for critical industrial applications.
Super Duplex Steel Bolts are made from a special type of stainless steel that contains around 22–26% chromium, 5–7% nickel, 3–5% molybdenum, and a controlled amount of nitrogen. This carefully balanced alloy gives them excellent corrosion resistance and impressive mechanical strength. Typically, these bolts boast a tensile strength of 850–1050 MPa and a yield strength of 550–750 MPa, along with good toughness even in colder conditions. They are highly resistant to pitting, crevice corrosion, and stress corrosion cracking, ensuring they perform reliably in aggressive chemical, marine, and high-pressure situations.
| Standard | DIN, ASTM, BS and all International Standards |
| Specifications | ASTM A479 & ASME SA479 |
| UNS S32760 Nut and Bolts Size | M3 To M56 3/6″ to 2″ |
| Length | 3 to 200 MM |
| Super Duplex Steel 2207 Machine Screws Size | M1.6 To M12 |
| Duplex Steel 2205 Washers Size | M3 To M56 3/6″ to 2″ |
| Grade | C | Cr | Mn | Mo | N | Ni | P | S | Si | Cu |
| Super Duplex Steel Bolts | 0.04 max | 24.0-27.0 | 1.5 max | 0.1-0.25 | 4.5-6.5 | 6.0-8.0 | 0.040 max | 0.030 max | 1.0 max | 1.5 |
| Tensile Strength(MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) | Hardness Rockwell C (HR C) | |
| Super Duplex Steel Bolts | 760 | 550 | 15 | 32 Max |
At Sayam Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Super Duplex Steel Bolts in Hyderabad, India, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the India, 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.
Super Duplex Steel Bolts from Sayam Nickel Alloys find extensive use in industries that demand strong and corrosion-resistant fastening solutions. Common applications include oil and gas pipelines, offshore drilling platforms, chemical processing facilities, desalination plants, marine structures, and power generation equipment. These bolts are perfect for securing components that are exposed to saltwater, high pressure, and harsh chemicals, making them an essential choice for a variety of demanding environments.