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Mira Fasteners is a reliable manufacturer and supplier of Kuala Lumpur, Malaysia Duplex Steel Stud Bolts. Made from strong duplex grades such as S31803 and S32205, these stud bolts provide exceptional strength, corrosion resistance, and dimensional stability. They find applications in high-pressure performance and aggressive environment exposure such as offshore drilling, chemical processing, and heat exchanger assemblies. Mira Fasteners produces full-threaded, tap-end, and double-end duplex stud bolts to ASTM A479 and international specifications with precision, strength, and long service life.
Duplex Steel Stud Bolts are produced from 22% chromium, 5–6% nickel, 3% molybdenum, and nitrogen. They provide yield strengths of up to 550 MPa and tensile strengths of up to 850 MPa. The ferritic-austenitic microstructure provides an additional resistance to chloride stress corrosion, erosion, and fatigue. Duplex bolts maintain their structural integrity at high pressure and temperature fluctuations. Mira Fasteners takes extra care to achieve precision machining and rigorous quality checks for each batch.
| 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 applications in flanged joints, subsea hardware, marine constructions, and chemical reactors. They are also applied to high-load piping systems, pressure vessels, offshore structures, and water treatment facilities. These bolts are imperative where normal stainless steel is prone to failure from corrosion or mechanical loading. Mira Fasteners provides duplex stud bolts that are customized for aggressive and dynamic conditions, providing a strong solution to secure long-lasting assemblies.
At Mira 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.
Mira Fasteners is a leading manufacturer and supplier of high-quality fasteners in Kuala lumpur, Malaysia, with over 8 years of experience serving global industries.
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