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Step into a realm of exceptional performance with our Duplex Steel Nuts, prominently featured across our product pages. We take great pride in delivering a broad selection of top-tier solutions carefully engineered to serve the varied requirements of numerous industries. Explore a landscape of adaptability and dependability through our thoughtfully constructed products, skillfully designed to thrive across a broad range of industrial uses. Our Duplex Steel Nuts feature precision engineering that complies with rigorous industry standards, guaranteeing longevity and outstanding resistance to corrosion. As a reliable retailer, we place customer satisfaction first by offering adaptable choices, competitive rates, and accelerated shipping. Whether for construction, manufacturing, or engineering projects, our Duplex Steel Nuts provide remarkable performance, establishing fresh standards for excellence and innovation. Our steadfast dedication to perfection empowers your business with reliable solutions, guaranteeing success and peace of mind in every transaction.
| Specifications | ASTM A479 & ASME SA479 |
| Standard | DIN, ASTM, BS and all International Standards |
| Length | 3 to 200 MM |
| Duplex Steel Nut and Bolts Size | M3 To M56 3/6″ to 2″ |
| Duplex Steel 2205 Machine Screws Size | M1.6 To M12 |
| Duplex Steel 2205 Washers Size | M3 To M56 3/6″ to 2″ |
Duplex Steel Nuts | Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
| 7.8 g/cm3 | 1350 °C (2460 °F) | Psi – 80000 , MPa – 550 | Psi – 116000 , MPa – 800 | 15 % |
At Koasteel, we are proud to be the largest supplier and manufacturer in the New Zealand, delivering advanced solutions for all your piping requirements. With cutting-edge production facilities strategically situated in the New Zealand, we maintain an extensive stock of more than 25,000 tons of top-quality materials ready and available.
Reach out to us for a fast quote tailored to your requirement.
We supply these Duplex Steel Nuts in accordance with DIN, ISO, JIS or ANSI Standard.
Corrosion resistance:Duplex steel frames offer better corrosion resistance than conventional austenitic stainless steel, particularly in demanding conditions involving chloride acidic seawater
Advanced durability:Duplex steel nuts pair high strength with outstanding hardness, allowing them to keep their mechanical properties even at low temperatures and making them well-suited for cryogenic uses
Low Cost:Thanks to their high efficiency, two-dimensional steel frames can prove very cost-effective when compared with other efficiency chemicals, achieving a balance between cost and performance
Resistance to stress cracking:Double-dimensional steel frames resist stress cracking to a high degree, which makes them well-suited for use in corrosive settings and under high stresses. Disruption is a concern
High Strength: These tiles possess high strength relative to austenitic stainless steel, which makes them suitable for uses that call for high load bearing and fatigue resistancence
Duplex Steel Nuts applications are as varied as the industries they serve, driven mainly by the aerospace, railway, construction and automotive industries along with petrochemical, nuclear, medical, Oil & Gas, Chemical, Pharmaceutical, Food & Beverage, Nuclear, Thermal Power plants, Paper and Pulp, marine and mining, etc.
Marine Marine:Two-dimensional steel frames are extensively utilized in offshore platforms, ships and buildings owing to their outstanding resistance to sea corrosion and resistance to chloride-induced stress corrosion cracking
Chemical applications:This fruit is employed for equipment such as reactors, moulds, pumps and valves in the chemical industry, where it delivers excellent corrosion resistance in acid and corrosion environments
Oil and Gas:Within the oil and gas industry, two-dimensional steel frames are applied upstream, midstream, and downstream, including in drilling rigs, pipelines, oil refineries, and LNG facilities, where they offer resistance to corrosion and erosion
Power Generation:Power plants employ double-sided steel frames for applications such as steam turbines, heat exchangers, boiler feedwater systems, space generation, corrosion resistance and longevity
Pulp and Paper:These fruits prove useful in the pulp and paper industry for equipment subject to high chemical corrosion and temperature, such as digesters, bleach towers and recovery boilers
Corrosion Resistance: Assess the environmental conditions where the walnuts will be applied. Select two corrosion-resistant steel frames suited to particular corrosive agents, like chloride, acid, or seawater.
Strength requirements: Identify the actor’s load-bearing capacity and strength needs. Pick a pair of steel frames with sufficient tensile strength and mechanical properties to endure the loads and stresses encountered throughout your application.
Duplex Steel Grade: Think about the appropriate duplex steel grade for your application. Frequently used materials include Duplex 2205 and Super Duplex (e.g., UNS S32750 and UNS S32760), each providing varying degrees of corrosion resistance, strength, and cost.
Temperature range: Establish the temperature at which the nuts make contact during operation. Pick two steel frames capable of tolerating the heat of your application without weakening their mechanical properties.
Size and Thread Type: Make sure the nuts align with the specifications of the mating bolts or threaded components. Choose the proper size, thread type (e.g., UNC, UNF, metric), and style (hex, flange, lock) to guarantee a correct fit and performance
Yes,Duplex steel nuts can be recycled. Duplex steel is a category of stainless steel alloy made up of iron, chromium, nickel, and molybdenum, along with other elements. As with other stainless steel alloys, Duplex steel nuts can be recycled by melting them down and reprocessing the material to create new products. Recycling Duplex steel nuts helps cons
Yes,Duplex steel nuts are suitable for underground applications thanks to their outstanding corrosion resistance characteristics. These nuts offer strong resistance to corrosion from a range of underground conditions, such as soil, groundwater, and moisture, which makes them well-suited for use in underground infrastructure
When installing Duplex steel nuts, take surface preparation into account to guard against corrosion, apply the correct torque to avoid over-tightening, keep threads safe from damage, evaluate environmental conditions such as temperature and chemical exposure, confirm material compatibility to avoid galvanic corrosion, examine nuts for defects in advance, use correct installation methods to spread the load evenly and avoid stress concentration, and adhere to manufacturer guidelines and industry standards for installation procedures to secure the best performance and durability.
Duplex steel nuts come in a range of configurations, such as standard hex nuts, flange nuts featuring a broad base for spreading loads, nyloc nuts equipped with a nylon insert to resist vibration, lock nuts with a locking system that stops loosening, weld nuts intended for permanent fixing through welding, heavy hex nuts designed for added strength, and prevailing torque nuts that incorporate inherent resistance to loosening. Such configurations serve a wide array of applications, providing choices for varying load demands, environmental settings, and fastening needs across industries like construction, manufacturing, oil and gas.
Mail: sales@koasteel.nz