Home > Super Duplex Steel > Super Duplex Steel Bolts S32750
Themban Nickel Alloys is a premier manufacturer and supplier of Super Duplex Steel Bolts S32750 in Cape Town , South Africa. Our S32750 bolts are engineered to deliver outstanding strength, durability, and resistance to corrosion, making them ideal for the most challenging environments. Perfectly suited for high-stress applications, these bolts excel in industries such as oil and gas, marine, and chemical processing. At Themban Nickel Alloys, we prioritize quality and reliability, ensuring our products meet rigorous industry standards. With advanced manufacturing capabilities and a commitment to excellence, we provide Super Duplex Steel Bolts S32750 that guarantee superior performance and longevity, making us the trusted choice for clients in South Africa and beyond.
| 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 S32750 | 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 S32750 | 760 | 550 | 15 | 32 Max |
These stud bolts are crafted from a blend of chromium (24–26%), nickel (6–8%), molybdenum (3–5%), nitrogen, and trace elements such as manganese and silicon. This carefully balanced composition results in a dual-phase microstructure of austenite and ferrite, which provides impressive tensile strength (800–900 MPa), yield strength (550 MPa), and exceptional resistance to pitting, crevice, and stress corrosion cracking. Even in low temperatures, the alloy maintains excellent toughness and structural stability, making it perfect for aggressive and chloride-rich environments.
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Super Duplex Steel S32750 Stud Bolts find their place in offshore oil rigs, heat exchangers, pressure vessels, and desalination plants, where they excel under extreme conditions. They’re also widely used in chemical processing, marine, and power generation industries, especially in systems that come into contact with seawater and harsh chemicals. These bolts offer reliable fastening solutions in pipelines, pumps, and valves, ensuring structural integrity while resisting corrosion and fatigue. With their outstanding mechanical properties, they are the go-to choice for heavy-duty and high-pressure applications.
