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Punit Fasteners is a leading manufacturer and supplier of Duplex Steel Stud Bolts S32205 in Delhi, India. These high-performance stud bolts are made from UNS S32205 duplex stainless steel, combining excellent resistance to corrosion with strong mechanical properties. Built to ASTM A479 and A182 specifications, our S32205 stud bolts are great for flange connections, structural assemblies, and high-pressure piping systems. Punit Fasteners provides precision-threaded, double-end, and fully threaded stud bolts with consistent accuracy in dimensions. Suitable for offshore, petrochemical, and marine applications, our bolts ensure secure fastening, even in highly corrosive or temperature-changing conditions.
Duplex Steel S32205 Stud Bolts consist of 22% chromium, 5–6% nickel, 3% molybdenum, and nitrogen for better strength and corrosion resistance. The dual-phase microstructure provides a high tensile strength (620–880 MPa) and yield strength (450–550 MPa), with Rockwell hardness in the 25–35 HRC range. These bolts show excellent resistance to chloride-induced stress corrosion cracking, pitting, and crevice corrosion. They maintain their shape and strength under thermal stress and high-pressure conditions. Their strong structure and fatigue resistance make them suitable for critical fastening in harsh industrial environments.
| S32205 | 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 |
| S32205 | 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 S32205 Stud Bolts work well in offshore drilling rigs, desalination plants, and chemical processing equipment. Their high corrosion resistance and strength make them suitable for fastening flanges, heat exchangers, pumps, and pressure vessels. They are often used in wastewater treatment, marine construction, and paper mills, where exposure to chlorides, acids, or saltwater is common. These stud bolts are also applied in bridges and structural frameworks that require long-lasting durability and stress handling. The S32205 grade provides excellent value where mechanical strength and corrosion protection are crucial under extreme industrial conditions.
At Punit Fasteners, Duplex Steel Stud Bolts S32205 are meticulously packaged to ensure maximum protection and integrity during transit. Each bolt is carefully inspected and wrapped in protective materials to prevent damage and corrosion. Our packaging solutions include sturdy boxes and, when necessary, custom pallets to secure the products. Detailed labeling and documentation are provided to ensure easy handling and traceability. This commitment to quality packaging ensures that our fasteners arrive in optimal condition, ready for immediate use.
Punit Fasteners is a leading manufacturer and supplier of high-quality fasteners in Delhi, India, with over 15 years of experience serving global industries.
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