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Marsh Nickel Alloys is a leading manufacturer and supplier of Super Duplex Steel Nuts in Canberra, Australia. Our Super Duplex Steel Nuts are engineered to provide exceptional strength and durability, making them ideal for high-stress and corrosive environments. With superior resistance to pitting, crevice corrosion, and stress corrosion cracking, these nuts are essential for applications in the oil and gas industry, chemical processing, and marine sectors.Marsh Nickel Alloys is committed to delivering top-quality products that meet international standards, ensuring reliable performance in critical operations. Our dedication to precision and quality makes us a trusted partner for industries demanding high-performance fastening solutions.
Marsh Nickel Alloys, located in Canberra, Australia, stands out as a top-notch manufacturer and supplier of high-quality Super Duplex Steel Nuts. These nuts are expertly crafted to offer exceptional strength, corrosion resistance, and reliability, even in the toughest environments. The company employs cutting-edge manufacturing techniques and rigorous quality control measures to ensure that their products meet international standards and consistently perform at a high level. Designed to endure harsh conditions—like exposure to seawater, chemicals, and extreme temperatures—Super Duplex Steel Nuts from Marsh Nickel Alloys are perfect for critical applications across various industries, including oil and gas, chemical processing, desalination, and marine engineering.
| Standard | : | ASTM A193 / A479, ASME SA193 / A479 |
| Dimension | : | ASTM,DIN, BS,GB, IS and all International Standards |
| Length | : | 3 mm to 200 mm |
| Nut Size | : | M02 to M33 | Custom Sizes |
| Heat Treatment | : | Annealing, Stress Relieving, Case Hardening, Quenching and Tempering. |
| Type | : | Hex Nut, Heavy Hex Nut, Lock Nut, Nylock Nut, Weld Nut, Dome Nut, Flange Nut, Square Nut, Eye Nut etc. |
| C | Cr | Ni | Mo | N | Others |
|---|---|---|---|---|---|
| 0.020 | 25 | 7 | 4.0 | .27 | S=0.001 |
| Ultimate Tensile Strength, ksi | 116 min. |
|---|---|
| 0.2% Offset Yield Strength 0.2%, ksi | 80 min. |
| 0.1% Offset Yield Strength 0.2%, ksi | 91 min. |
| Elongation in 2 inches, % | 15 min. |
| Hardness Rockwell C | 32 max. |
| Impact Energy, ft.-lbs. | 74 min. |
These nuts are made from a carefully balanced microstructure of austenite and ferrite, enhanced with chromium, molybdenum, nickel, and nitrogen. This unique composition grants them outstanding mechanical properties, such as high tensile strength, toughness, and fatigue resistance. They excel in resisting pitting, crevice corrosion, and chloride-induced stress corrosion cracking, even in aggressive and high-temperature settings. Each nut undergoes meticulous manufacturing and testing to guarantee precise threading, dimensional accuracy, and metallurgical consistency, ensuring reliable performance and a long service life in critical applications.
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Super Duplex Steel Nuts are a go-to choice in industries that demand high-strength, corrosion-resistant fasteners. In the oil and gas sector, they play a crucial role in securing pipelines, valves, and offshore platforms that face the challenges of seawater and harsh chemicals. In the chemical and petrochemical fields, they are essential for pressure vessels, reactors, and process piping systems that handle aggressive fluids. Additionally, they find applications in desalination plants, marine engineering projects, and power generation facilities. With their remarkable durability, corrosion resistance, and mechanical strength, Super Duplex Steel Nuts are truly indispensable components for demanding industrial and engineering tasks.
