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Santner Nickel Alloys is a trusted manufacturer and supplier of high-performance Super Duplex Steel Stud Bolts in Hamilton, New Zealand. Known for delivering products that combine strength, durability, and excellent corrosion resistance, the company supports a wide range of demanding industrial sectors. Their Super Duplex Steel Stud Bolts are crafted using advanced technology and strict quality standards to ensure consistent performance even in tough environments. With a focus on customer satisfaction, timely delivery, and reliable service, Santner Nickel Alloys has earned a strong reputation both locally and internationally. They continue to provide dependable fastening solutions tailored to modern engineering needs.
Super Duplex Steel Stud Bolts are manufactured using a balanced composition of chromium, nickel, molybdenum, and nitrogen, which together enhance strength and resistance to corrosion and stress cracking. The material offers a dual-phase microstructure that improves toughness and ensures stable performance in high-pressure and high-temperature conditions. These stud bolts exhibit exceptional tensile strength, good impact resistance, and reliable hardness, making them suitable for harsh environments. Their mechanical properties allow them to maintain long-term performance in seawater, chemical processing, and other corrosive atmospheres.
| 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 Santner Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Super Duplex Steel Stud Bolts in Hamilton, New Zealand, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the New Zealand, 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 are widely used in industries where a combination of strength, corrosion resistance, and long-lasting performance is required. They are commonly installed in offshore platforms, subsea equipment, chemical processing units, and desalination plants due to their ability to resist pitting and crevice corrosion. These stud bolts also perform exceptionally well in heat exchangers, pressure vessels, pumps, and valves. Their durability makes them suitable for marine engineering, oil and gas projects, and high-stress structural assemblies. Overall, they provide dependable fastening in challenging environments, helping industries maintain safety, reliability, and operational efficiency.
