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Super Duplex Steel Stud Bolts are durable fasteners made from a specialized stainless steel alloy celebrated for its exceptional strength and resistance to corrosion. Featuring dual-threaded ends, they perform outstandingly in demanding settings like offshore rigs and chemical processing plants. These bolts deliver dependable fastening in vital applications where standard fasteners would give way to corrosion, safeguarding structural integrity and safety. Their remarkable durability and ability to withstand severe conditions render them essential for industries that demand uncompromising reliability and longevity.
| 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 | 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 % |
| 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 |
At Sumakhsteel, we take pride in being the largest supplier and manufacturer in the USA, delivering advanced solutions for every one of your piping requirements. With cutting-edge manufacturing facilities strategically situated across the USA, we maintain an extensive inventory of more than 25,000 tons of top-grade materials kept ready in stock.
Reach out to us for a fast quote on your requirement.
We provide These Super Duplex Steel Stud Bolts in accordance with DIN, ISO, JIS or ANSI Standard.
Corrosion Resistance: Super Duplex steel offers greater corrosion resistance than ordinary duplex stainless steel. This makes it well suited for use in demanding settings like marine, coastal and medical facilities where corrosion poses a significant concern.
High Strength: Super Duplex steel stud bolts provide better tensile and yield strength than ordinary duplex stainless steel or austenitic steel. This enables them to endure greater loads and stresses, making them appropriate for critical uses where strength is essential.
Durability: The pairing of outstanding strength and corrosion resistance secures the durability and durability of Super Duplex steel stud bolts, lessening the need for frequent replacement and maintenance
Cost: Although the upfront cost of super duplex steel stud bolts may be greater compared to certain other materials, their prolonged life and lower maintenance tend to cut overall cost over time vertical
Stress resistance to strain cracking: Super Duplex steel shows excellent resistance to corrosive stress cracking, a failure that may arise in materials under tensile stress within corrosion zones. This characteristic is especially valuable in the application of materials in chloride-containing environments.
Super Duplex Steel Stud Bolts serve applications as varied as the industries that use them, led chiefly by the aerospace, railway, construction and automotive sectors, along with petrochemical, nuclear, medical, Oil & Gas, Chemical, Pharmaceutical, Food & Beverage, Nuclear, Thermal Power plants, Paper and Pulp, marine and mining, etc.
Marine Applications: Super duplex steel stud bolts see wide use in offshore oil and gas platforms, subsea pipelines and ships thanks to their outstanding resistance to corrosion in harsh marine settings, including seas of water, salt-dispersed and chloride-rich conditions.
Chemical and petrochemical industries: Applied in chemical plants, refineries and petrochemical plants where contact with volatile chemicals and elevated temperatures is frequent. Super Duplex steel stud bolts deliver effective resistance to pitting, crevice corrosion and stress corrosion cracking in these demanding areas
Power generation: Power plants rely on seawater chiefly for cooling; super duplex steel stud bolts serve to fasten critical components such as valves, flanges, pumps, and so on. Their resistance to corrosion and high strength make them well suited to both conventional and renewable energy applications.
Desalination equipment: Super duplex steel stud bolts are the choice for desalination plants where seawater can be processed to produce fresh water. These screws withstand salting from the edges of the high salinity of seawater, guaranteeing the reliability and durability of equipment and structures.
Understand application requirements: Identify the precise conditions under which the stud bolt will operate. Take into account temperature, pressure, potential dissipation, and mechanical load.
Material Selection: Super Duplex Stainless Steel is recognized for its outstanding corrosion resistance and mechanical properties when compared to standard duplex or austenitic stainless steel. This confirms. Verify that Super Duplex Steel is appropriate for your operational requirements.
Grade Selection: Super duplex stainless steels come in several grades, such as UNS S32750 (often called 2507) and UNS S32760. Each class has a slightly different chemical composition and mechanical properties. Select the grade that best fits your application needs.
Size and Length: Establish the suitable size and length of stud bolts according to your application requirements, including the fastener thickness and required thread compatibility
Corrosion Resistance: Super Duplex Stainless Steel offers very high corrosion resistance, particularly in harsh environments containing chloride ions. Ensure the stud bolts deliver sufficient corrosion resistance for your specific application.
Yes, Super Duplex Steel Stud Bolts can be recycled. Stainless steel, super duplex stainless steel included, is a material with excellent recyclability. During recycling, the steel is melted down so it can be reused across a range of applications. Recycling stainless steel supports the conservation of natural resources, lowers energy use, and cuts down on waste.
Yes Super Duplex Steel stud bolts are suitable for underground use, especially in settings where both corrosion resistance and mechanical strength matter significantly. Super Duplex Steel is recognized for its outstanding resistance to corrosion, especially in harsh conditions like those encountered underground, where the material can come into contact with moisture, soil, and various corrosive agents. Because of its high strength along with resistance to pitting and crevice corrosion, it is a fitting option for these purposes. That said, sound engineering and installation methods must always be observed to guarantee the durability and performance of any material deployed underground.
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