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Russ Fasteners is a reliable manufacturer and distributor of Duplex Steel Stud Bolts in Singapore, Pulau Ujong, providing high-performance bolting solutions for hostile environments. The stud bolts are made of duplex stainless steels such as UNS S31803 and S32205, imparting greater strength and corrosion resistance. Russ Fasteners maintains precise threading and dimensional accuracy according to international standards. Duplex Steel Stud Bolts are best suited for pressure-bound and flanged joints in power generation, chemical processing, and offshore drilling applications where they provide long-term performance in corrosive, high-stress, and high-pressure operating conditions.
Duplex Steel Stud Bolts consist of duplex stainless steel having an equal ferrite-austenite microstructure, with a typical composition of 22–25% chromium, 5–6% nickel, 3% molybdenum, and nitrogen. These bolts provide dual yield strength (double that of common austenitic stainless steel), tensile strength approximately 650–800 MPa, and fatigue resistance. They have superior resistance to stress corrosion cracking, crevice corrosion, and pitting, especially in chloride-containing and acidic environments. These specifications render them suitable for high-pressure, high-temperature, and chemically aggressive applications.
| 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 % |
| 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 |
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 Stud Bolts find extensive application in offshore platforms, desalination plants, pressure vessels, heat exchangers, and chemical processing facilities. They play a vital role in mounting flanged joints in pipelines, tanks, and reactors exposed to high temperatures and corrosive media. In oil & gas, they resist the severe subsea and topside conditions. The pulp and paper sector employs them in digesters and bleaching equipment. Their excellent mechanical strength and better resistance to corrosion also render them ideal for bridges, water treatment plants, and coastal infrastructure. Duplex Steel Stud Bolts are reliable for important load-carrying and corrosion-susceptible fastening applications.
At Russ Fasteners, we ensure Duplex Steel Stud Bolts are packaged with the utmost care to preserve their quality and integrity. Each bolt is individually inspected and securely wrapped in protective materials to prevent damage during transit. We offer a range of packaging options, including bulk cartons and custom-sized containers, to meet your specific needs. Our robust packaging solutions ensure that your fasteners arrive in pristine condition, ready for immediate use in your critical applications.
Russ Fasteners is a leading manufacturer and supplier of high-quality fasteners in Pulau ujong, Singapore , with over 12 years of experience serving global industries.
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