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Ashraf Nickel Alloys stands out as a top **manufacturer and supplier of Duplex Steel Stud Bolts** in Riyadh, Saudi Arabia. We specialize in delivering high-strength, corrosion-resistant fastening solutions tailored for critical industrial applications. Our stud bolts are crafted from premium Duplex stainless steel grades, including UNS S32205 (Duplex 2205), ensuring exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking—particularly in environments rich in chlorides or other aggressive chemicals. We adhere to international standards like ASTM A276 and ASTM A193, serving key sectors such as oil & gas, petrochemical, marine, and construction throughout Saudi Arabia and the GCC.
What sets our Duplex Steel Stud Bolts apart is their unique dual-phase (austenitic-ferritic) microstructure, which provides double the strength of standard stainless steels, along with impressive weldability and fatigue resistance. These bolts are perfect for high-pressure, high-temperature settings and are commonly used in flanged connections, reactors, pressure vessels, and structural joints. At Ashraf Nickel Alloys, we also offer customized sizes, thread types, and surface finishes to meet specific project needs.
| Grade | Duplex Steel UNS S31803 / S32205 |
| Specifications | ASTM A 479 ASME SA 479 |
| Dimension | DIN, ASTM, BS and all International Standards |
| Length | 3mm to 200mm |
| Size | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Types | Threaded Rod, Class A double ended stud, Tie Rod, Double Ended Stud, Stud Bolts, Bronze Hex Studs, Threaded Studs etc |
| Duplex Steel Stud Bolts | C | N | P | Si | Mn | Mo | Fe | Cr | S | Ni |
| 1.0 | 0.03 | 0.02 | 2.0 | 3.0 – 3.5 | 22.0 – 23.0 | 0.03 | 4.5 – 6.5 | 0.14 – 0.2 | Bal |
| Duplex Steel Stud 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 % |
Our Duplex Steel Stud Bolts are a trusted choice for Riyadh’s infrastructure, offshore platforms, desalination plants, and chemical processing units. Their robust performance and corrosion resistance guarantee a long service life with minimal maintenance. With a strong commitment to precision manufacturing, quality control, and timely delivery, Ashraf Nickel Alloys is dedicated to supporting Saudi Arabia’s industrial growth with reliable Duplex fastener solutions.
Contact us to get a quick quote for your requirement.
Duplex Steel stud bolts are widely used in demanding industries, including oil and gas, chemical processing, and marine environments. They are ideal for securing structural components, flanges, and equipment in settings where high strength and corrosion resistance are crucial. Common applications include offshore platforms, refineries, and high-pressure systems. Their robustness and resistance to environmental factors make them suitable for use in both high-stress and corrosive conditions, ensuring long-term reliability and performance.