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Jyoti Steels is a reputable Indian manufacturer and exporter of Super Duplex Steel Stud Bolts established in Mumbai. The company holds a great position for its superior quality and precise work, serving stud bolts designed to withstand utmost pressure and extreme corrosive exposure. Fabricated from high-class Super Duplex stainless steel, these fasteners find vast use in industries such as power generation, marine, petrochemicals, and oil & gas. Jyoti Steels makes sure that all the products conform to international standards, with endurance, high strength, and sound performance in harsh industrial uses.
Super Duplex Steel Stud Bolts are usually composed of Chromium (24–26%), Nickel (6–8%), Molybdenum (3–5%), Nitrogen (~0.2–0.3%), and Iron (balance), with trace elements such as Tungsten (~0.5–1%), Copper (~0.5%), Manganese (<1.2%), and Carbon (<0.03%). The composition provides excellent resistance to pitting, crevice corrosion, and chloride stress corrosion cracking. They possess high tensile strength (~800 MPa), yield strength (~550 MPa), and elongation of ~25%. With a density of 7.8 g/cm³ and thermal conductivity of approximately 15 W/m·K, these bolts support structural integrity at elevated temperatures and in corrosive environments.
| Specification | ASTM F593, F594, F1554 / ASME SF593, F594, F1554 |
| Standard | DIN : DIN 934, DIN 931, DIN 970, DIN 933 UTS : UNEF, NPT, UNC, UNS, UNF, NPTF ISO : JIS standards, ISO 4033, ISO 4032, ANSI – American National Standards Institute ASME B18.5 ANSI B 28.2.4 1M as per defined in ASME B16.5 standard Monel Monel® Alloy 400 Stud nuts length ANSI B 18.2.4 2M as per defined in ASME B18.2.2 Monel Alloy 400 Hex nuts |
| Size | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Length | 3 mm to 200 mm | Custom Sizes |
| Dimensions | DIN 931, 933, 934, 7991, 976, 125, ASME B18.2.1, B18.3 |
| Form | Hex, Threading, Square, Round as per Gauge Etc. |
| Threads | Unless otherwise specified, the threads shall be rolled or cut and tapped horizontally or vertically |
| Threads available | UNF, BSW, BSF, METRIC, UNC, or as required |
| Threads Configuration | ASME B1.1 2A/3A – 2B/3B Inch Unified Threads and B1.13M 6h-6G Metric Coarse Threads |
| Certification | Dual Certified As per ASTM & ASME Codes |
| Test Certificate | As per EN 10204 / 3.1 Manufacturer Test Certificate, PED 97/23/EC Certified, Merkblatt AD 2000 W2 Certified |
| Raw materials Source | JSPL, Mukund Steel, Tata Steel, Dhamm Steel, Usha Martin,etc. |
| Packing | IN BULK: canton, pallet, Small Boxs / carton / pallet, or customer request |
| Surface Coating | Cadmium Coating Hot Dipped Galvanizing Coating Ptfe Coated Nickel Alloy 200 Fasteners Phosphate Coating Teflon Coating Xylon Coating Zinc Coating |
| Grade | C | N | P | Si | Mn | Mo | Fe | Cr | S | Ni |
| Super Duplex Steel Stud Bolts | 0.030 max | 0.24 – 0.32 | 0.035 max | 0.80 max | 1.20 ma | 3.0 – 5.0 | – | 24.0 – 26.0 | 0.020 max | 6.00 – 8.00 |
| Grade | Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
| Super Duplex Steel Stud Bolts | 7.8 g/cm3 | 1350 °C (2460 °F) | Psi – 80000 , MPa – 550 | Psi – 116000 , MPa – 800 | 15 % |
At Jyoti Steels, we take pride in being the largest supplier, exporter, and manufacturer of Super Duplex Steel Stud Bolts in Mumbai, India, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the India, allowing us to maintain a vast inventory of over 16,000 tons of premium-quality materials readily available in stock. We are dedicated to delivering superior products and services, ensuring reliability and excellence for our global clientele.
Contact us to get a quick quote for your requirement.
Super Duplex Steel Stud Bolts have vast applications in high-pressure and corrosion-resistant uses. In the petroleum and gas industry, they are essential to connect flanges, valves, and pressure vessels for offshore platforms as well as subsea pipelines. They find usage in shipyards, seawater systems, as well as in desalination plants within the marine industry on account of being resistant to sea water corrosion. They find uses in chemical processes, power plant operations, as well as in pulp & paper plants. Their good strength and very good fatigue life render them best suited for heavy-load, vibration-intensive, and safety-related applications where long-term reliability is required.
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