Duplex Steel Stud Bolts

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Duplex Steel Stud Bolts Manufacturer & Supplier in Dubai, UAE

Duplex Steel UNS S31803/S32205 Studs, Duplex Steel UNS S31803/S32205 Threaded Stud, WNR. No. 1.4462 Duplex 2205 Double Ended Stud Manufacturer, Supplier in Dubai, UAE

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Duplex Steel Stud Bolts are high-strength fasteners made from a type of stainless steel known as duplex steel. This steel blend combines the best attributes of both austenitic and ferritic stainless steels, offering exceptional strength and corrosion resistance. These stud bolts are commonly used in industries like oil and gas, chemical processing, and marine applications where harsh environments demand reliable and durable fastening solutions. They provide excellent performance in settings where traditional steel fasteners might corrode or fail prematurely, offering superior resistance to corrosion, stress corrosion cracking, and high temperatures.

Duplex Steel Stud Bolts Specifications

Grade Duplex Steel UNS S31803 / S32205
Specifications ASTM A 479 ASME SA 479
Dimension DIN, ASTM, BS and all International Standards
Length 3mm to 200mm
Size M3 – M56 | 3/6″ to 2″ | Custom Sizes
Types Threaded Rod, Class A double ended stud, Tie Rod, Double Ended Stud, Stud Bolts, Bronze Hex Studs, Threaded Studs etc

Mechanical Properties of Duplex Steel Stud Bolts

S31803 / S32205 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 %

Duplex Steel Stud Bolts Chemical Composition

S31803 / S32205 C N P Si Mn Mo Fe Cr S Ni
1.0 0.03 0.02 2.0 3.0 – 3.5 22.0 – 23.0 0.03 4.5 – 6.5 0.14 – 0.2 Bal

Top Duplex Steel Stud Bolts Manufacturing Company in Dubai

At PipingMart, we take pride in being the largest supplier and manufacturer in the UAE, offering cutting-edge solutions for all your piping needs. With state-of-the-art production plants strategically located in the UAE, we boast a vast inventory of over 25,000 tons of premium-quality materials readily available in stock.

Available Duplex Steel Stud Bolts Grades

  • Duplex 2205 Stud Bolts 
  • Duplex 2304 Stud Bolts
  • Duplex F51 Stud Bolts

Contact us to get a quick quote for your requirement.

We offer These Duplex Steel Stud Bolts as per DIN, ISO, JIS or ANSI Standard.

Duplex Steel UNS S31803 Stud Bolts,Duplex Steel 2205 Hex Studs, ASTM A479 Duplex 2205 Threaded Stud Bolts, Duplex Steel UNS S31803 Studs Manufacturer and Supplier in Dubai, UAE

Advantages of Duplex Steel Stud Bolts

  • Corrosion Resistance: Duplex steel stud bolts offer superior corrosion resistance compared to conventional stainless steel or carbon steel bolts. This makes them ideal for use in environments with high levels of corrosion, such as offshore platforms, chemical plants, and marine applications.
  • High Strength: Duplex steel provides excellent mechanical strength, allowing stud bolts to withstand heavy loads and high-pressure applications without compromising on performance.
  • Stress Corrosion Cracking Resistance: One of the key advantages of duplex steel is its resistance to stress corrosion cracking, which can occur in harsh environments where traditional materials might fail prematurely.
  • Cost-Effectiveness: While duplex steel stud bolts may have a higher initial cost compared to standard materials, their durability and longevity often result in cost savings over the long term due to reduced maintenance and replacement requirements.
  • Versatility: Duplex steel stud bolts are suitable for a wide range of applications across various industries, including oil and gas, petrochemical, power generation, and construction, thanks to their versatility and adaptability to different environmental conditions.
  • Weldability: Duplex steel is known for its good weldability, allowing for ease of fabrication and installation of stud bolts in complex structures and assemblies.

Types of Duplex Steel Stud Bolts

Duplex Steel Stud 718 Hex Bolts
Duplex Steel Stud Alloy 718 Square U Bolts
Duplex Steel Stud 718 Lag Bolts
Duplex Steel Stud 718 Anchor Bolt
Duplex Steel Stud 718 Exhaust Bolts
Duplex Steel Stud 718 M10 Bolts

Duplex Steel UNS S31803/S32205 Double Ended Stud, Duplex Steel UNS S32205 Tie Rod, Duplex Steel UNS S32205 Threaded Stud Bolts, Duplex Steel UNS S31803/S32205 Stud Bolts manufacturer And Supplier In Dubai UAE

Duplex Steel Stud Bolts Uses

Application Industry

Duplex Steel Stud 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.

Oil & Gas Industry

Petrochemical Industry

Chemical Processing Plants

Power Generation Facilities

  • Offshore Oil and Gas Platforms: Duplex steel stud bolts are widely used in offshore oil and gas platforms due to their exceptional corrosion resistance and high strength, ensuring reliable performance in harsh marine environments.
  • Chemical Processing Plants: These stud bolts are employed in chemical processing plants where exposure to corrosive chemicals and high temperatures is common. Their resistance to corrosion and stress corrosion cracking makes them essential for maintaining structural integrity and safety.
  • Petrochemical Industry: Duplex steel stud bolts find extensive use in the petrochemical industry for connecting pipelines, vessels, and equipment. Their durability and resistance to various forms of corrosion make them ideal for withstanding the demanding conditions of petrochemical facilities.
  • Power Generation Facilities: In power generation facilities, duplex steel stud bolts are utilized for securing components in boilers, turbines, and other critical equipment. Their resistance to high temperatures and corrosion ensures the reliability and longevity of power generation systems.
  • Desalination Plants: Duplex steel stud bolts are essential components in desalination plants, where they are exposed to seawater and chloride-rich environments. Their resistance to chloride stress corrosion cracking makes them well-suited for this application.

How to Choose the Right Duplex Steel Stud Bolts

  • Corrosion Resistance: Consider the environmental conditions where the stud bolts will be used, such as exposure to seawater, chemicals, or high temperatures. Choose a duplex steel grade with appropriate corrosion resistance properties for the specific application.
  • Strength Requirements: Evaluate the mechanical strength needed for the application, including factors such as load-bearing capacity and resistance to vibration or dynamic loads. Select a duplex steel grade with the necessary strength characteristics to meet the requirements.
  • Temperature Compatibility: Take into account the operating temperature range of the application. Ensure that the duplex steel stud bolts can withstand the anticipated temperatures without experiencing degradation or loss of mechanical properties.
  • Stress Corrosion Cracking Resistance: Assess the risk of stress corrosion cracking in the operating environment, especially in chloride-rich or acidic conditions. Choose a duplex steel grade known for its resistance to stress corrosion cracking to prevent premature failure.
  • Size and Dimensions: Determine the appropriate size, length, and thread specifications of the stud bolts based on the design requirements and installation parameters of the application.

Are Duplex Steel Stud Bolts Recyclable?

Yes, duplex steel stud bolts are recyclable. Duplex steel, like other stainless steels, is highly recyclable and can be melted down and reprocessed to create new products without losing its valuable properties. Recycling duplex steel stud bolts and other stainless steel components helps conserve natural resources, reduce energy consumption, and minimize waste. Additionally, stainless steel recycling is economically viable and contributes to sustainability efforts by promoting a circular economy where materials are reused and repurposed.

FAQ (Frequently Asked Questions)

Can Duplex Steel Stud Bolts be used for underground applications?

Yes, duplex steel stud bolts can be used for underground applications due to their corrosion resistance properties. Underground environments pose challenges such as moisture, soil acidity, and chemical exposure, which can lead to corrosion of traditional fasteners. Duplex steel’s exceptional corrosion resistance makes it suitable for withstanding these conditions, ensuring the integrity and longevity of underground structures and equipment. Whether in underground pipelines, utility installations, or mining operations, duplex steel stud bolts provide reliable fastening solutions that endure in harsh underground environments.

What are the considerations for installing Duplex Steel Stud Bolts?

When installing duplex steel stud bolts, several considerations are crucial for ensuring proper performance and longevity. Firstly, it’s essential to verify the compatibility of the stud bolts with the surrounding environment, taking into account factors such as corrosion, temperature, and stress levels. Proper surface preparation and cleaning are necessary to remove contaminants that could compromise the integrity of the fasteners. Additionally, attention should be paid to the torque specifications and tightening procedures to prevent overloading or underloading, which can affect the bolt’s performance. Finally, regular inspection and maintenance are recommended to detect any signs of corrosion, wear, or loosening, ensuring the continued reliability of the duplex steel stud bolts over time.

What are the different types of Duplex Steel Stud Bolts configurations available?

Duplex steel stud bolts come in various configurations to suit diverse applications. Common types include fully threaded studs, double-end studs with threads on both ends, and tap-end studs featuring threads on one end and a plain shank on the other. Stud bolts may also have different end treatments, such as chamfered or rounded ends. Additionally, configurations vary based on thread types, including coarse and fine threads. These versatile configurations allow for flexibility in fastening applications across industries, providing options to meet specific design and installation requirements.

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