Duplex steel fasteners
Duplex Steel Nuts, Bolts & Fasteners Manufacturer
Duplex steel fasteners made of DSS are extremely resistant to corrosion and are best suited for use in aggressive environments such as marine and offshore applications. These fasteners exhibit superior resistance to pitting, crevice corrosion, and stress corrosion cracking compared to standard stainless steel bolts and nuts, making them a dependable upgrade wherever ordinary bolts and nuts fall short.
DSS fasteners are less prone to stress corrosion cracking compared to austenitic stainless steel, which makes them advantageous in critical applications. These fasteners are often more cost-effective than high-nickel content alloys or superalloys, offering a smart middle ground between performance and price for engineers specifying bolts fasteners and screws and fasteners for demanding builds.
Reliable Supplier of Duplex Hex Bolts in Mumbai
We are a duplex hex bolts supplier in India, and our DSS bolts are extensively employed in subsea equipment including subsea pipelines, risers, and manifolds. These hex bolts are utilized on offshore platforms for connecting structural components, securing equipment, and providing dependable fastenings in critical areas. DSS bolts are also commonly employed with flanges and connectors, which are vital for joining pipelines and equipment throughout the oil and gas industry.
DuplexPipeline – Leading Duplex Fastener Manufacturer in Mumbai – View Sizes & Specifications Online
Duplex stainless steel bolts
DSS friction grip bolts
- Size: M3 – M56
- Length: 3 mm to 200 mm
Duplex threaded rod
Our Mumbai facility produces a complete lineup of duplex stainless steel bolts, DSS friction grip bolts, and duplex threaded rods, all available with detailed sizing and specification sheets so you can select the right nuts bolts combination for your project without guesswork.
To ensure the utmost quality and reliability of DSS hex bolts, several measures are undertaken throughout the manufacturing process. We verify that materials sourced from our fasteners production line meet the exact specifications required for the particular project or application.
We implement strict quality control measures during the entire manufacturing process of nuts bolts and other DSS products. Different tests and inspections are performed to assess and confirm the highest quality of manufactured hex bolts as per the required project specifications, ensuring every batch of bolts fasteners we ship is fit for critical service.
Duplex bolts, made of duplex stainless steel, are available in sizes ranging from M6 to M100. The material has a high melting point of 1,350°C.
We are duplex fasteners manufacturers in India, providing high-quality screws and fasteners across a broad range of sizes, grades, and finishes to suit any project specification.
Order Duplex Screws at Factory Prices from Duplex Pipeline India
Order duplex screws and other fasteners directly from our Mumbai factory at competitive prices, with fast turnaround on both standard and custom sizes.
Duplex hex bolts
- Size: M1.6 to M12
- Applications: petrochemical
- Machinery assemblies
DSS bolts and nuts
- Size: M3 – M56
- Length: 3 mm to 200 mm
Duplex steel screws
- Size: M3 – M56
- Thermal Conductivity: 19 at 100 °C
- saltwater
Our range of nuts bolts and other fasteners includes:
- Duplex hex bolts – Size: M1.6 to M12; Applications: petrochemical, machinery assemblies
- DSS bolts and nuts – Size: M3 – M56; Length: 3 mm to 200 mm
- Duplex steel screws – Size: M3 – M56; Thermal Conductivity: 19 W/m·K at 100°C; suitable for saltwater environments
- Duplex threaded rods – for high-strength, high-corrosion-resistance fastening in structural and process applications
Duplex Threaded Rods – High Yield Strength & Material Specifications
Our duplex threaded rods offer high yield strength alongside the corrosion resistance expected of duplex stainless steel, making them a strong complement to our hex bolts, nuts bolts, and screws and fasteners ranges.
Our duplex screws are manufactured with carefully controlled chemical composition to maintain the balanced austenite-ferrite microstructure that gives every fastener its characteristic strength and corrosion resistance. Full composition charts are available on request.
Our DSS bolts are tested for yield strength, tensile strength, elongation, and hardness, ensuring every batch of nuts bolts and other bolts fasteners meets or exceeds the mechanical properties required for critical service.
Creep is the tendency of a DSS material to deform under long-term exposure to high temperatures and constant stress. DSS friction grip bolts exhibit good creep resistance, allowing them to maintain their dimensional stability and structural integrity over time.
These grip bolts offer excellent corrosion resistance in high-pressure environments where corrosive substances or aggressive media are present. These bolts fasteners can sturdily withstand repeated stress cycles without premature failure or deformation, ensuring long-term reliability and safety across offshore and industrial applications.
Zinc coating, commonly applied through processes like hot-dip galvanizing or zinc electroplating, provides excellent corrosion resistance to DSS nuts. Xylan is a fluoropolymer coating for bolts renowned for its low friction, wear resistance, and chemical resistance properties a popular finish choice across our bolts and nuts and screws and fasteners range.
The minimum yield strength for the DSS threaded rod typically falls within the range of 450 MPa (65 ksi) to 550 MPa (80 ksi) for DSS 2205. As for SDSS rod 2507, it falls between 550 MPa (80 ksi) and 620 MPa (90 ksi). The maximum yield strength for DSS threaded rods can reach up to 700 MPa (100 ksi) or higher, depending on grade and heat treatment.
Looking for reliable fasteners, hex bolts, or a custom set of screws and fasteners for your next project? Contact Duplex Pipeline Solutions LLP today for competitive pricing, technical datasheets, and fast turnaround on all nuts bolts and fasteners requirements.
Frequently Asked Questions
Duplex steel fasteners — Questions Buyers Ask Most
What are duplex steel fasteners used for?
Why choose duplex fasteners over standard stainless steel?
Are duplex fasteners cost-effective?
Do duplex fasteners perform well under long-term stress?
Where are duplex fasteners manufactured?
How can I get pricing for duplex fasteners?
Contact Duplex Pipeline Solutions LLP directly for factory pricing, datasheets, and turnaround on custom sizes.
Duplex steel fasteners made of SS are extremely resistant to corrosion and are best for use in aggressive environments such as marine applications. They exhibit superior resistance to pitting, crevice corrosion, and stress corrosion cracking as compared to standard SS.
DSS fasteners are less prone to SCC compared to austenitic stainless steels which makes them advantageous in critical applications. These steel fasteners are often more cost-effective as compared to high-nickel content alloys or superalloys.
Reliable Supplier of Duplex Hex Bolts in Mumbai
We are duplex hex bolt supplier in India, our DSS bolts are extensively employed in subsea equipment including subsea pipelines, risers, and manifolds. These bolts are utilized in offshore platforms for connecting structural components, securing equipment, and providing fastenings in critical areas. DSS bolts are also commonly employed in flanges and connectors which are vital for joining pipelines and equipment in the oil and gas industry.
DuplexPipeline – Leading Duplex Fastener Manufacturer in Mumbai – View Sizes & Specifications Online
Duplex stainless steel bolts
DSS friction grip bolts
Duplex threaded rod
To ensure the utmost quality and reliability of DSS hex bolts, several measures can be undertaken throughout the bolt manufacturing process. Verify that the materials bought from the DSS fasteners manufacturer in India meet the exact specifications for the particular project or application
Implement strict quality measure controls during the entire manufacturing process of DSS bolts and nuts. Perform different tests and inspections to assess and ensure the highest quality of the manufactured hex bolts as per the required project specifications.
Duplex bolt, made of duplex stainless steel ranging in size from M6 to M100. the material has a high melting point of 1 350 °C.
We are duplex fasteners manufacturers in India, we provide high quality products
Order Duplex Screws at Factory Prices from Duplex Pipeline India
Duplex hex bolts
- Size: M1.6 to M12
- Applications: petrochemical
- Machinery assemblies
DSS bolts and nuts
- Size: M3 – M56
- Length: 3 mm to 200 mm
Duplex steel screws
- Size: M3 – M56
- Thermal Conductivity: 19 at 100 °C
- saltwater
Duplex Threaded Rods – High Yield Strength & Material Specifications
Creep is the tendency of a DSS material to deform under long-term exposure to high temperatures and constant stress. DSS friction grip bolts exhibit good creep resistance, allowing them to maintain their dimensional stability and structural integrity.
These grip bolts offer excellent corrosion resistance in high-pressure environments where corrosive substances or aggressive media are present. These DS bolts can sturdily withstand repeated stress cycles without premature failure or deformation, ensuring long-term reliability and safety.
Zinc coating, commonly applied through processes like hot-dip galvanizing or zinc electroplating, provides excellent corrosion resistance to DSS nuts. Xylan is a fluoropolymer coating for bolts renowned for its low friction, wear resistance, and chemical resistance properties.
The minimum yield strength for the DSS threaded rod typically falls within the range of 450 MPa (65 ksi) to 550 MPa (80 ksi) for DSS 2205. And as for SDSS rod 2507, it falls between 550 MPa (80 ksi) to 620 MPa (90 ksi). The maximum yield strength for DSS threaded rods can reach up to 700 MPa (100 ksi) or higher
