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Jyoti Steels is one of the foremost producers and exporters of Super Duplex Steel Fasteners in Mumbai, India. Renowned for providing high-quality fastening solutions, the organization provides high-strength, corrosion-resistant fasteners that work impeccably in demanding and harsh environments. With its keen emphasis on quality, precision, and customer satisfaction, Jyoti Steels provides fasteners that adhere to international standards. Supplying to oil & gas, marine, chemical processing, and construction industries, Jyoti Steels has established a strong reputation for dependability, strength, and regular product performance.
Super Duplex Steel Fasteners consist of Chromium (24–26%), Nickel (6–8%), Molybdenum (3–5%), Nitrogen (~0.3%), and Iron as base material, with trace amounts of Manganese (<2%) and Carbon (<0.03%). This alloy offers great resistance to pitting, crevice corrosion, and chloride-caused stress corrosion cracking. They possess high tensile strength (~750–850 MPa), yield strength (~550 MPa), and elongation of approximately 25%. They are physically characterized by a density of 7.8 g/cm³, thermal conductivity of ~15 W/m·K, and retain mechanical stability up to temperatures of 300°C, rendering them suitable for harsh service environments.
| Specification | IS, BS, ASTM, ASME |
| Grade | Super Duplex Steel | UNS S32750 | S32760 |
| Standard | ASTM A479 ASME SA479 |
| Length | 3mm to 200mm |
| Form | Screw, Nuts, Bolts, Washers |
| Size | 3/6″ to 2″, M3 – M56, Custom Sizes |
| Application | Oil & Gas, Heat exchanger and condenser, Automobile Industry, Engineering, Power plants, Refineries & Petrochemicals, Ship building, Desalination Plants |
| Phosphorus | Sulphur | Silicon | Carbon | Manganese | Nickel | Molybdenum | Nitrogen | Copper | Chromium |
|---|---|---|---|---|---|---|---|---|---|
| 0.035 % max | 0.02 % max | 0.80 % max | 0.03% Max | 1.20 % max | 6.00 – 8.00 % | 3.00 – 5.00 % | 0.24 – 0.32 % | 0.50 % max | 24.0 – 26.0 % |
| Grade | YS (MPa) | UTS (MPa) | % Elongation | Hardness(BHN) |
| UNS S32750 | 550 min. | 795 min. | 15 min. | 310 max. |
| UNS S32760 | 550 min. | 750 min. | 25 min. | 270 max. |
At Jyoti Steels, we take pride in being the largest supplier, exporter, and manufacturer of Super Duplex Steel Fasteners 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 Fasteners are applied in numerous high-performance and corrosion-susceptible environments. In offshore and marine sectors, they play a critical role in assembling structural structures, pipelines, and ship parts exposed to seawater. In the oil and gas industry, they are utilized in drilling platforms, subsea equipment, and refineries with high pressure and corrosion issues. Chemical processing plants apply them in reactors, storage tanks, and piping systems. These fasteners are also employed in desalination plants, bridges, and tall buildings, ensuring long-term strength and reliability under harsh conditions.
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