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Brian Fasteners, a Houston, USA-based company, is a well-known producer and supplier of high-quality Duplex Steel Stud Bolts. As a quality-focused and customer-centric fastener company, Brian Fasteners supplies long-lasting and corrosion-resistant fasteners that conform to international standards. Their Duplex Steel Stud Bolts are characterized by superior strength and reliability, as well as being suitable for extreme industrial conditions. Supported by high-technology manufacturing and a passionate workforce, Brian Fasteners has established a strong track record of providing performance-oriented solutions to customers from multiple industry segments, such as oil & gas, petrochemicals, construction, and marine industries.
Duplex Steel Stud Bolts consist mainly of austenitic-ferritic stainless steel with around 22% chromium, 5-6% nickel, and 3% molybdenum content, with added nitrogen for increased corrosion resistance. These bolts are characterized by a high yield strength, about double that of conventional austenitic stainless steels, with tensile strength commonly in the range 620 MPa and yield strength over 450 MPa. They possess a stable microstructure resulting in good resistance to stress corrosion cracking, pitting, and crevice corrosion, particularly in severe and chloride-bearing conditions. These mechanical characteristics make them excellent for use in critical structure and high-pressure 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 industries requiring high mechanical strength, corrosion resistance, and long-term service life. Offshore oil and gas platforms, chemical process plants, desalination plants, and heat exchangers are some of the places where Duplex Steel Stud Bolts find their application, withstanding harsh conditions and corrosive substances. The presence of a duplex phase makes them robust in acidic and marine environments. Also, they are employed in pressure vessels, piping, and structural assemblies across the construction and power generation industries. Their reliability and performance under stress conditions make them a top choice for demanding fastening applications.
At Brian 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.
Brian Fasteners is a leading manufacturer and supplier of high-quality fasteners in Houston , USA, with over 8 years of experience serving global industries.
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