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Adrian Nickel Alloys stands out as a top-notch manufacturer and supplier of **Duplex Steel Forgings** in Singapore, specifically in Pulau Ujong. They provide high-quality forged components that are perfect for demanding industrial applications. Crafted from premium duplex stainless steel, these forgings boast remarkable mechanical strength and impressive resistance to pitting, crevice corrosion, and stress corrosion cracking, especially in harsh, chloride-rich environments. With a variety of shapes, sizes, and pressure ratings available, each forging is made to meet international standards, ensuring they are accurate, durable, and reliable for critical uses in the oil & gas, chemical processing, marine, and power generation sectors.
Typically, Duplex Steel Forgings contain around 22–25% chromium, 5–7% nickel, 3–4% molybdenum, and nitrogen. This unique blend results in a ferritic-austenitic microstructure that delivers high tensile strength of about 620–800 MPa and yield strength close to 450–550 MPa, along with excellent impact toughness, even in low temperatures. This composition guarantees outstanding corrosion resistance and stability under intense mechanical and thermal stress, making these forgings ideal for extreme service conditions.
| 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 Adrian Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Super Duplex Steel Stud Bolts in Pulau ujong, Singapore , providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Pulau ujong, 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.
											
											
											
											
											
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You’ll find Duplex Steel Forgings used in a variety of applications, including subsea components, valve bodies, flanges, pump housings, and essential structural parts in offshore oil & gas platforms, chemical processing plants, and desalination units. They’re also utilized in marine engineering, power generation, and the pulp & paper industries, where exposure to aggressive media and high mechanical loads is a regular occurrence. Their blend of high strength, corrosion resistance, and long-lasting reliability makes them the go-to choice for industries that need safe, durable, and high-performance forged components.