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Wai Nickel Alloys is a leading manufacturer and supplier of Super Duplex Steel Stud Bolts in Naypyidaw, Myanmar. Our Super Duplex Steel Stud Bolts are designed to deliver exceptional strength, durability, and resistance to corrosion, making them perfect for the most demanding applications. With superior mechanical properties and excellent performance in harsh environments, these stud bolts are ideal for industries such as oil and gas, marine, and chemical processing. At Wai Nickel Alloys, we are committed to upholding the highest industry standards through advanced manufacturing techniques and rigorous quality control. Our dedication to excellence ensures that every Super Duplex Steel Stud Bolt meets the toughest requirements, making us the trusted choice for clients across Naypyidaw and beyond.
| 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 % |
Typically, **Super Duplex Steel Stud Bolts** are made up of 25% chromium, 7% nickel, 3–4% molybdenum, and nitrogen, which together create a well-balanced austenitic-ferritic microstructure. This unique composition grants them excellent resistance to pitting, crevice corrosion, and stress corrosion cracking caused by chlorides. With a high tensile strength ranging from 800 to 900 MPa, these bolts also boast impressive yield strength and fatigue resistance. Additionally, they are known for their outstanding weldability, oxidation resistance, and stability even under extreme temperatures and pressures.
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You’ll find **Super Duplex Steel Stud Bolts** in a variety of industries, including oil and gas, petrochemical, marine, desalination, and power generation. They’re particularly well-suited for offshore platforms, pressure vessels, heat exchangers, and chemical processing equipment that face exposure to seawater and harsh chemicals. These bolts also play a crucial role in the pulp and paper and wastewater treatment sectors, ensuring secure connections and long-lasting performance. With their superior reliability, corrosion protection, and cost-effectiveness, Super Duplex Steel Stud Bolts are a top choice for the most demanding service environments.
