Home > Super Duplex Steel > Super Duplex Steel Bolts
| Standard | DIN, ASTM, BS and all International Standards |
| Specifications | ASTM A479 & ASME SA479 |
| UNS S32760 Nut and Bolts Size | M3 To M56 3/6″ to 2″ |
| Length | 3 to 200 MM |
| Super Duplex Steel 2207 Machine Screws Size | M1.6 To M12 |
| Duplex Steel 2205 Washers Size | M3 To M56 3/6″ to 2″ |
| Tensile Strength(MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) | Hardness Rockwell C (HR C) | |
| Super Duplex Steel Bolts | 760 | 550 | 15 | 32 Max |
| Grade | C | Cr | Mn | Mo | N | Ni | P | S | Si | Cu |
| Super Duplex Steel Bolts |
0.04 max | 24.0-27.0 | 1.5 max | 0.1-0.25 | 4.5-6.5 | 6.0-8.0 | 0.040 max | 0.030 max | 1.0 max | 1.5 |
At Koasteel, we take pride in being 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 hold an extensive inventory of more than 25,000 tons of top-quality materials on hand in stock.
Reach out to us for a fast quote tailored to your requirement.
We supply these Super Duplex Steel Bolts in accordance with DIN, ISO, JIS or ANSI Standard.
Corrosion Resistance: Super Duplex steel offers excellent protection against corrosion, particularly in harsh conditions like marine settings or chemical processing. This protective quality helps guard against corrosion and wear, extends bolt lifespan, and lowers maintenance expenses.
High Strength: Super Duplex steel provides greater strength than ordinary stainless steel, which makes it well suited for uses that demand high mechanical strength. This strength can bear heavy loads and stresses on edges in fine condition that neither harm nor fracture Super Duplex steel bolts.
Resistance to stress cracking: Super Duplex steel demonstrates resistance to stress corrosion cracking, a problem that may arise in chloride-rich settings such as seawater. This characteristic matters for bolt use on offshore oil and gas platforms, desalination facilities, and other marine resources.
Low cost: In spite of its outstanding qualities, super duplex steel can cut costs compared to other corrosion-resistant alloys like nickel. This blend of high strength and corrosion resistance means a project may need fewer bolts, bringing down total costs.
Durability: Super Duplex steel bolts enjoy a long service life thanks to their strength and their resistance to corrosion and damage. This durability cuts the need for regular replacement, lowering downtime and maintenance costs.
A wide range of applications: Super Duplex steel bolts are used across many industries, such as oil and gas, chemical processing, pulp and paper, and desalination. Their adaptability and dependability make them fit for demanding locations where safety and performance are critical.
Easy to manufacture: Strong duplex steel can be readily fabricated and machined with standardized techniques, enabling intricate bolt systems to be produced to satisfy particular application needs.
Super Duplex Steel Bolts serve applications as varied as the industries that use them, led chiefly 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.
Offshore and Offshore Applications: Dual steel bolts see extensive use across offshore oil and gas exploration zones, including platforms, pipelines, and subsea equipment. Demanding marine conditions, such as salt water and corrosive solvents, call for particular corrosion resistance qualities, and this is what makes super duplex steel a perfect fit.
Chemical industry: In the chemical industry, where contact with hot chemicals, elevated temperatures, and high pressure is frequent, super duplex steel bolts are the favored choice. They serve in reactors, vessels, piping systems, and additional equipment to guarantee dependable and long-lasting performance.
Pulp and Paper Industry: Super duplex steel bolts can be found in tools and machinery built to endure such demanding conditions within the pulp and paper industry, including corrosive acids and chemicals across various processes like pulping, bleaching and paper making . . . . is used in the present study
Desalination equipment: Super duplex steel bolts are employed in seawater conversion plants. Because of salt and other contaminants, these machines run in extremely hot environments, which demands that super duplex steel bolts function over extended periods.
Consider the environment: Think about the setting in which the bolts will operate. Super Duplex steel bolts are recognized for their outstanding corrosion resistance, which makes them appropriate for demanding environments like marine applications, offshore oil rigs and chemical plants.
Know Strength Requirements: Identify the strength and load-bearing capacity needed for your application. Super duplex steel bolts deliver high tensile strength along with excellent resistance to fatigue and stress corrosion cracking, which makes them perfect for heavy-duty, high-pressure applications.
Check the temperature range: Take into account the temperature range in which the bolts will function. Super Duplex steel has a high mechanical temperature, which makes it appropriate for critical applications such as thermal stability.
Corrosion Resistance: Establish the level of corrosion resistance needed based on the operating environment. Super Duplex steel offers corrosion resistance superior to standard stainless steel and withstands pitting, crack corrosion and chloride-induced stress corrosion cracking.
Consider standards and specifications: Make sure the bolts comply with the relevant industry standards, such as ASTM, ASME, or ISO. These standards specify product characteristics, dimensions, and testing requirements to guarantee consistent quality and performance.
Mail: sales@koasteel.nz
