Super Duplex Screws

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Super Duplex Screws Manufacturer and Supplier in Hyderabad, India

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Ramu Fasteners, a reputed manufacturer and supplier in Hyderabad, offers high-performance Super Duplex Screws designed for strength, durability, and corrosion resistance. Manufactured using premium super duplex stainless steel and advanced machining processes, these screws deliver precise threading, excellent surface finish, and consistent dimensions. Ramu Fasteners ensures strict quality control at every stage of production to meet international standards. Super Duplex Screws are known for their high load-bearing capacity and long service life, making them a dependable fastening solution for demanding industrial and structural applications.

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Super Duplex Screws are produced from alloys containing high levels of chromium, nickel, molybdenum, and nitrogen, with a balanced austenitic and ferritic structure. This composition provides exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking. Mechanically, these screws offer very high tensile and yield strength, excellent toughness, and good fatigue resistance. They perform reliably under heavy loads, high pressure, and temperature variations without losing structural integrity.

Super Duplex Screws Specifications

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″

Super Duplex Steel Flange Screws in Hyderabad, Super Duplex Steel Carriage Screws in Hyderabad, Super Duplex Stainless Steel Screws in India, Super Duplex Steel Square Head Screws in India, Super Duplex Hexagonal Bolts Exporter in Hyderabad, India.

Super Duplex Screws Mechanical Properties

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

Super Duplex Screws Chemical Composition

Phosphorus Sulphur Silicon Carbon Manganese Nickel Molybdenum Nitrogen Copper Chromium
0.035 % max 0.02 % max 0.80 % max 0.03% Max 1.20 % max 6.00 – 8.00 % 3.00 – 5.00 % 0.24 – 0.32 % 0.50 % max 24.0 – 26.0 %

Super Duplex J-Bolt, Super Duplex Steel Hex Screws in India, Super Duplex Steel Heavy Hex Screws in Hyderabad, Super Duplex Steel Coach Screw Dealer in Hyderabad, Ferritic Stainless Steel Screws Duplex U-Bolt Supplier in Hyderabad, Super Duplex Fully Threaded Screws Supplier in Hyderabad, India.

Commited to High Quality Service

To satisfy our clients needs by providing high quality products at competitive price as per the schedule and to maintain long term relationship with our clients.

Super Duplex Steel Screws are used in various high performance areas. In chemical processing they are able to resist the effects of aggressive chemicals and high pressure. In marine applications, they are protected from corrosion by sea water hence giving long service life. In the oil and gas industry, they offer secure fastening where tension is usually high. Also, Super Duplex Steel screws are employed in power generation and construction industries because of their excellent performance in harsh conditions. 

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Types of Super Duplex Screws

Super Duplex Screws
Super Duplex Fully Threaded Screws
Super Duplex Steel Square Head Screws
Super Duplex Steel Carriage Screws
Super Duplex Stainless Steel Screws
Super Duplex Steel Flange Screws

Super Duplex Screws are widely used in oil and gas, offshore, marine, and chemical processing industries where extreme corrosion resistance and strength are required. They are commonly applied in pipelines, pressure vessels, heat exchangers, and structural assemblies. These screws are ideal for seawater and chloride-rich environments. Due to their durability and low maintenance needs, Super Duplex Screws are also preferred in power plants, desalination systems, and heavy engineering projects that demand safe and long-lasting fastening solutions.

 
 

Super Duplex Steel Flange Screws in Hyderabad, Super Duplex Steel Carriage Screws in Hyderabad, Super Duplex Stainless Steel Screws in India, Super Duplex Steel Square Head Screws in Hyderabad.

Aerospace Industry
Petrochemical Industry
Defence Industry

Super Duplex Screws Applications