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Hamad Fasteners, based in Riyadh, Saudi Arabia, is your go-to source for top-notch fastening solutions that are built to last and resist corrosion. Our Duplex Steel Stud Bolts are specifically crafted for tough industrial settings, striking the perfect balance between strength and corrosion resistance. These bolts shine in sectors like oil and gas, petrochemicals, marine applications, and desalination plants. Manufactured to meet international standards, our Duplex Steel Stud Bolts guarantee outstanding performance, reliability, and a long service life, even in the most challenging and high-stress conditions.
What sets our Duplex Steel Stud Bolts apart is their unique microstructure, which consists of roughly equal parts austenite and ferrite. This composition gives them impressive mechanical strength and exceptional resistance to stress corrosion cracking, pitting, and crevice corrosion. We typically offer grades like Duplex 2205 and Super Duplex 2507, boasting tensile strengths between 620–800 MPa and yield strengths from 450–550 MPa. The alloy is made up of chromium (22–25%), nickel (4.5–7%), and molybdenum (3–4%), ensuring they perform exceptionally well in chloride-rich and corrosive environments while also being easy to weld and tough.
| 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 are commonly found in offshore oil rigs, pressure vessels, chemical tanks, heat exchangers, desalination systems, and marine infrastructure. They are particularly well-suited for flanged joints and structural assemblies that face high chloride levels, seawater, or harsh chemicals. Thanks to their impressive strength-to-weight ratio, they allow for lighter constructions without sacrificing performance. When traditional stainless steels might fall short, Duplex fasteners are the smart choice, providing long-lasting durability, lower maintenance needs, and cost-effective performance in corrosive and mechanically demanding settings.
At Hamad 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.
Hamad Fasteners is one of the Industrial suppliers and manufacturers of quality fasteners in Riyadh, Saudi Arabia, that has spent more than 12 years serving various industries.
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