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 |
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We offer These Super Duplex Steel Bolts as per DIN, ISO, JIS or ANSI Standard.
Corrosion Resistance: Super Duplex steel is highly resistant to corrosion, especially in aggressive environments such as marine or chemical processes. This resistance helps prevent corrosion and wear, increases bolt life and reduces maintenance costs.
High Strength: Super Duplex steel has higher strength than standard stainless steel, making it suitable for applications requiring high mechanical strength. This strength can withstand heavy loads and stresses great condition edges that do not damage or break Super Duplex steel bolts.
Resistance to stress cracking: Super Duplex steel exhibits resistance to stress corrosion cracking, which can occur in chloride-containing environments, such as seawater. This property is important in bolt handling in offshore oil and gas platforms, desalination plants, and other marine resources.
Low cost: Despite its superior properties, super duplex steel can save costs over other corrosion-resistant alloys such as nickel. This combination of high strength and corrosion resistance means fewer bolts may be required for a project, reducing overall costs.
Durability: Super Duplex steel bolts have a long life due to their strength and resistance to corrosion and damage. This strength reduces the need for frequent replacement, reducing downtime and maintenance costs.
A wide range of applications: Super Duplex steel bolts find applications in various industries, including oil and gas, chemical processing, pulp and paper, and desalination. Their versatility and reliability make them suitable for complex locations where safety and performance are paramount.
Easy to manufacture: Strong duplex steel is easily fabricated and machined using standardized methods, allowing complex bolt systems to be manufactured to meet specific application requirements.
Super Duplex Steel Bolts applications are as diverse as the industries they serve driven primarily by the aerospace, railway, construction and automotive industries 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 are widely used in offshore oil and gas exploration areas, such as platforms, pipelines, and subsea equipment. Harsh marine environments, including salt water and corrosive solvents, require special corrosion resistance properties, which make super duplex steel ideal.
Chemical industry: Super duplex steel bolts are preferred in the chemical industry, where hot chemicals, high temperature, and pressure exposure are common. They are used in reactors, vessels, piping systems, and other equipment to ensure reliable and durable work.
Pulp and Paper Industry: Super duplex steel bolts are available in tools and machines to withstand such harsh conditions in the pulp and paper industry, including corrosive acids and chemicals in various processes like pulping, bleaching and paper making . . . . is used in the present study
Desalination equipment: Super duplex steel bolts are used in seawater conversion plants. These machines operate in extremely hot environments due to salt and other contaminants, which require super duplex steel bolts to operate for long periods.
Consider the environment: Consider the environment where the bolts will be used. Super Duplex steel bolts are known for their exceptional corrosion resistance, making them suitable for harsh environments such as marine applications, offshore oil rigs and chemical plants.
Know Strength Requirements: Determine your application’s strength and load-carrying capacity. Super duplex steel bolts provide high tensile strength and excellent resistance to fatigue and stress corrosion cracking, making them ideal for heavy-duty, high-pressure applications.
Check the temperature range: Consider the temperature range at which the bolts will operate. Super Duplex steel has a high mechanical temperature, making it suitable for critical applications such as thermal stability.
Corrosion Resistance: Determine the corrosion resistance required depending on the operating environment. Super Duplex steel provides superior corrosion resistance to standard stainless steel and is resistant to pitting, crack corrosion and chloride-induced stress corrosion cracking.
Consider standards and specifications: Ensure bolts meet appropriate industry standards, such as ASTM, ASME, or ISO. These standards define product characteristics, dimensions, and testing requirements to ensure consistent quality and performance.
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