Ragnar Metals & Tubes is a trusted Duplex F53/F55 Taper Plug Manufacturer, Stockist and Exporter delivering premium-quality Super Duplex threaded sealing solutions for the world's most demanding industrial applications. Backed by more than 12 years of manufacturing experience, we specialize in precision-engineered Super Duplex F53/F55 Taper Plugs that provide outstanding corrosion resistance, exceptional mechanical strength and long-term sealing reliability.
Manufactured using premium-grade Super Duplex Stainless Steel F53 (UNS S32750) and Super Duplex Stainless Steel F55 (UNS S32760), our taper plugs are designed to perform in highly corrosive chloride environments, seawater systems, offshore installations, desalination plants, petrochemical facilities and high-pressure process industries. Their superior resistance to pitting, crevice corrosion, erosion and chloride stress corrosion cracking makes them the preferred choice for critical engineering applications.
As a globally recognized Duplex F53/F55 Taper Plug Exporter, Ragnar Metals & Tubes supplies precision-manufactured taper plugs to customers throughout UAE, Saudi Arabia, Qatar, Oman, Kuwait, Bahrain and many other international markets. Every taper plug is manufactured using advanced CNC machining equipment to achieve excellent dimensional accuracy, smooth thread engagement and dependable leak-proof performance.
Our Duplex F53/F55 Taper Plugs are available in BSP, BSPT, NPT, Metric and customized thread standards, ensuring compatibility with a wide range of industrial piping and instrumentation systems while meeting ASTM, ASME and international quality requirements.
A Duplex F53/F55 Taper Plug is a precision-machined threaded sealing component manufactured from Super Duplex Stainless Steel Grades F53 (UNS S32750) and F55 (UNS S32760). It is designed to seal threaded ports in pipelines, valves, manifolds, pressure vessels, hydraulic equipment and instrumentation systems operating under extremely corrosive and high-pressure conditions.
Super Duplex stainless steels combine a balanced ferritic-austenitic microstructure that provides significantly higher tensile strength than conventional stainless steels together with exceptional resistance to pitting corrosion, crevice corrosion, seawater attack and chloride stress corrosion cracking.
Because of these outstanding characteristics, Duplex F53/F55 Taper Plugs are extensively used in offshore oil platforms, subsea systems, desalination plants, marine engineering, fertilizer plants, chemical processing facilities and other critical industrial sectors where long service life and maximum reliability are required.
Ragnar Metals & Tubes has established itself as a reliable manufacturer and exporter of Super Duplex Stainless Steel Taper Plugs through advanced manufacturing capabilities, consistent product quality and customer-focused engineering solutions. Every taper plug is manufactured using certified raw materials and thoroughly inspected before dispatch.
| Specification | Details |
|---|---|
| Product Name | Duplex F53/F55 Taper Plug |
| Material Grades | UNS S32750 (F53) / UNS S32760 (F55) |
| Standards | ASTM A182 F53 / ASTM A182 F55 / ASME SA182 |
| Thread Types | BSP, BSPT, NPT, Metric |
| Available Sizes | 1/8" to 4" (Custom Sizes Available) |
| Surface Finish | Natural, Bright, Passivated, CNC Finished |
| Manufacturing Process | Precision CNC Machining & Thread Cutting |
| Pressure Rating | As Per Design & Customer Requirement |
| Inspection | EN 10204 3.1 / Third Party Inspection Available |
| Country of Origin | India |
The outstanding corrosion resistance and exceptional mechanical performance of Duplex F53/F55 Taper Plugs are achieved through a carefully controlled chemical composition. Super Duplex Stainless Steel Grades F53 (UNS S32750) and F55 (UNS S32760) contain high levels of chromium, molybdenum and nitrogen, providing outstanding resistance to pitting corrosion, crevice corrosion, chloride stress corrosion cracking and seawater attack. At Ragnar Metals & Tubes, every raw material batch is verified through spectrometer analysis before entering production to ensure full compliance with ASTM, ASME and international quality standards.
| Element | F53 (UNS S32750) % | F55 (UNS S32760) % |
|---|---|---|
| Carbon (C) | 0.03 Max | 0.03 Max |
| Silicon (Si) | 0.80 Max | 1.00 Max |
| Manganese (Mn) | 1.20 Max | 1.00 Max |
| Phosphorus (P) | 0.035 Max | 0.03 Max |
| Sulfur (S) | 0.020 Max | 0.010 Max |
| Chromium (Cr) | 24.0 – 26.0 | 24.0 – 26.0 |
| Nickel (Ni) | 6.0 – 8.0 | 6.0 – 8.0 |
| Molybdenum (Mo) | 3.0 – 5.0 | 3.0 – 4.0 |
| Nitrogen (N) | 0.24 – 0.32 | 0.20 – 0.30 |
| Copper (Cu) | — | 0.50 – 1.00 |
| Tungsten (W) | — | 0.50 – 1.00 |
| Iron (Fe) | Balance | Balance |
Super Duplex F53/F55 offers exceptional mechanical strength while maintaining excellent toughness and ductility. These properties enable the taper plugs to perform reliably under extreme pressure, cyclic loading and aggressive industrial environments.
| Property | Typical Value |
|---|---|
| Tensile Strength | 800 MPa Minimum |
| Yield Strength | 550 MPa Minimum |
| Elongation | 15% Minimum |
| Hardness | 310 HB Maximum |
| Density | 7.80 g/cm³ |
| Modulus of Elasticity | 200 GPa |
| Melting Range | 1350 – 1425°C |
Super Duplex F53/F55 Taper Plugs are engineered for highly corrosive and high-pressure applications where conventional stainless steels cannot deliver the required service life. Their combination of superior corrosion resistance and high mechanical strength makes them ideal for mission-critical industrial installations.
The superior corrosion resistance and mechanical performance of Super Duplex Stainless Steel make Duplex F53/F55 Taper Plugs suitable for the world's most demanding engineering applications.
Widely used in offshore drilling platforms, subsea production systems, manifolds, valves, pressure vessels and wellhead equipment exposed to seawater and chloride-rich environments.
Installed in reactors, storage tanks, heat exchangers, process piping and refinery equipment operating under highly corrosive process conditions.
Suitable for shipbuilding, ballast systems, seawater cooling systems, marine pumps, offshore vessels and naval engineering applications.
Excellent resistance to seawater corrosion makes Duplex F53/F55 the preferred material for reverse osmosis systems, desalination pipelines and seawater treatment equipment.
Provides reliable sealing performance in aggressive chemical environments involving chlorides, acids, alkalis and industrial solvents.
Used in thermal, nuclear and renewable power plants for cooling systems, condensers, pressure vessels and steam piping.
Precision-machined taper plugs provide dependable sealing for hydraulic manifolds, cylinders, valves and pressure control systems.
Installed in instrumentation manifolds, transmitters, analyzers and pressure monitoring equipment requiring leak-free threaded connections.
Resistant to corrosive fertilizer manufacturing environments involving aggressive chemicals and high-pressure process systems.
Used in customized industrial machinery, fabrication equipment and automation systems requiring superior durability and corrosion resistance.
At Ragnar Metals & Tubes, every Duplex F53/F55 Taper Plug is manufactured using advanced CNC machining technology and stringent quality control procedures to ensure precision, durability and superior sealing performance.
Certified Super Duplex Stainless Steel F53 and F55 bars are procured from approved mills with complete traceability and mill certificates.
Raw materials undergo spectrometer analysis, Positive Material Identification (PMI), ferrite measurement and visual inspection before production begins.
High-precision CNC lathes machine each taper plug to exact dimensions while maintaining extremely tight tolerances.
BSP, BSPT, NPT and Metric threads are manufactured using calibrated tooling to ensure smooth engagement and leak-proof sealing.
Every component is deburred, cleaned and passivated to improve corrosion resistance and produce a premium surface finish.
Each taper plug undergoes dimensional inspection, hardness testing, PMI verification, thread gauge inspection, ferrite testing and visual examination.
Complete inspection reports, EN 10204 3.1 Mill Test Certificates and third-party inspection documentation are prepared before shipment.
Finished Duplex F53/F55 Taper Plugs are packed using export-grade packaging materials to ensure safe transportation to customers across India, the Middle East and worldwide.
Ragnar Metals & Tubes is a trusted Duplex F53/F55 Taper Plug Manufacturer, Stockist and Exporter supplying precision-engineered Super Duplex taper plugs to industries across India, the Middle East and worldwide. With over 12 years of manufacturing excellence, we manufacture high-performance Duplex F53/F55 Taper Plugs that deliver exceptional corrosion resistance, outstanding mechanical strength and dependable leak-proof sealing in the most demanding industrial environments.
Manufactured from premium-grade Super Duplex Stainless Steel F53 (UNS S32750) and F55 (UNS S32760), our taper plugs are specifically designed for severe chloride-rich environments, offshore platforms, subsea equipment, chemical processing plants and high-pressure process systems. Every taper plug is precision CNC machined and thoroughly inspected to ensure dimensional accuracy, thread precision and long service life.
Our Duplex F53/F55 Taper Plugs are widely used in upstream, midstream and downstream oil & gas operations including drilling equipment, production manifolds, wellhead systems, valves, pipelines, pressure vessels and instrumentation systems requiring superior corrosion resistance and reliable sealing.
Super Duplex F53/F55 provides outstanding resistance to seawater corrosion and chloride stress corrosion cracking, making these taper plugs ideal for offshore drilling platforms, FPSOs, subsea manifolds, underwater pipelines and offshore production facilities.
Petrochemical processing plants use our taper plugs in reactors, heat exchangers, storage tanks, transfer pipelines and processing units exposed to aggressive chemicals and high-pressure conditions.
Our Super Duplex taper plugs provide dependable sealing in chemical plants handling acids, alkalis, chlorides and corrosive process fluids while ensuring long operational life.
Duplex F53/F55 Taper Plugs are extensively used in marine piping systems, ballast systems, seawater cooling circuits, offshore vessels, naval engineering and shipbuilding applications where exceptional seawater resistance is essential.
The outstanding resistance of Super Duplex stainless steel to seawater corrosion makes these taper plugs ideal for reverse osmosis systems, desalination pipelines, seawater intake systems and water treatment facilities.
Used in thermal, nuclear and renewable energy plants for condensers, steam systems, cooling circuits, pressure piping and heat exchanger equipment operating under demanding conditions.
Precision-machined Duplex F53/F55 Taper Plugs provide secure leak-proof sealing for hydraulic manifolds, cylinders, pumps, valves and pressure control systems.
Installed in instrumentation manifolds, pressure transmitters, gauges, analyzers and control systems requiring accurate threaded sealing and long-term reliability.
Heavy engineering companies rely on our Super Duplex taper plugs for customized industrial machinery, process equipment, fabrication projects and high-strength engineering assemblies.
At Ragnar Metals & Tubes, quality assurance is integrated into every stage of manufacturing. Our Duplex F53/F55 Taper Plugs are produced using certified Super Duplex raw materials and modern CNC machining technology under strict quality control procedures. Every product is inspected thoroughly to ensure compliance with ASTM, ASME and international industrial standards.
Our experienced quality engineers perform multiple inspections throughout production to verify chemical composition, mechanical properties, thread accuracy, dimensional precision and overall product performance before dispatch.
Ragnar Metals & Tubes follows international export packaging standards to ensure Duplex F53/F55 Taper Plugs are delivered safely to customers worldwide. Every taper plug is protected against corrosion, scratches, thread damage and transportation impacts during domestic and international shipping.
We export premium-quality Duplex F53/F55 Taper Plugs to Dubai, Abu Dhabi, Sharjah, Ajman, Fujairah, Ras Al Khaimah and Jebel Ali for offshore platforms, oil & gas companies, EPC contractors and marine engineering projects.
Our Super Duplex Taper Plugs are supplied to Riyadh, Dammam, Jubail, Yanbu, Jeddah and Al Khobar for petrochemical complexes, refineries, offshore projects and industrial engineering companies.
Ragnar Metals & Tubes exports precision-manufactured Duplex F53/F55 Taper Plugs to Doha and industrial zones supporting LNG facilities, offshore production and heavy engineering industries.
Our products are supplied to Muscat, Sohar, Salalah and Duqm for desalination plants, offshore engineering, marine projects and industrial processing facilities.
We export premium Super Duplex taper plugs to oil refineries, petrochemical industries, engineering contractors and industrial distributors across Kuwait.
Our Duplex F53/F55 Taper Plugs are widely supplied for offshore developments, marine engineering, industrial processing plants and infrastructure projects throughout Bahrain.
Apart from the Middle East, Ragnar Metals & Tubes exports Duplex F53/F55 Taper Plugs to Europe, Africa, Southeast Asia, North America and numerous international markets with complete export documentation, certified quality reports and on-time worldwide delivery.
Looking for a trusted Duplex F53/F55 Taper Plug Manufacturer, Stockist & Exporter? Ragnar Metals & Tubes is your reliable manufacturing partner for premium-quality Super Duplex Stainless Steel F53/F55 Taper Plugs. Backed by over 12 years of industry experience, we manufacture precision-engineered taper plugs that comply with ASTM, ASME and international quality standards for offshore, marine, oil & gas and high-pressure industrial applications.
Our experienced technical and sales team helps customers select the correct thread type, material grade, pressure rating and customized dimensions for every industrial application. Whether you require standard or custom-manufactured Duplex F53/F55 Taper Plugs, we provide competitive factory pricing, ready stock, fast worldwide delivery and complete export documentation.
A Duplex F53/F55 Taper Plug is a precision-machined threaded sealing plug manufactured from Super Duplex Stainless Steel UNS S32750 (F53) or UNS S32760 (F55). It is designed to seal threaded openings in pipelines, valves, pressure vessels, manifolds and instrumentation systems operating in highly corrosive and high-pressure environments.
Both grades provide exceptional corrosion resistance and high strength. F55 (UNS S32760) contains additional tungsten and copper, offering enhanced resistance to localized corrosion and improved performance in aggressive marine and chemical environments.
We manufacture Duplex F53/F55 Taper Plugs in BSP, BSPT, NPT, Metric and customized thread profiles according to customer drawings and international standards.
These taper plugs are widely used in offshore platforms, subsea systems, oil & gas, petrochemical, marine engineering, desalination plants, fertilizer plants, power generation and chemical processing industries.
Standard sizes range from 1/8" to 4". Customized sizes, thread types, hex configurations and special designs are available as per customer specifications.
Yes. Every shipment is supplied with EN 10204 3.1 Mill Test Certificates, chemical analysis reports, mechanical test reports and complete inspection documentation.
Yes. We offer third-party inspections through SGS, TUV, Bureau Veritas (BV), DNV, Lloyd's Register and other internationally approved inspection agencies upon customer request.
Ragnar Metals & Tubes exports Duplex F53/F55 Taper Plugs to UAE, Saudi Arabia, Qatar, Oman, Kuwait, Bahrain, Europe, Africa, Southeast Asia, North America and numerous international markets.
Each Duplex F53/F55 Taper Plug undergoes PMI testing, spectrometer analysis, ferrite content testing, hardness testing, dimensional inspection, thread gauge inspection, visual inspection and final quality verification before shipment.
With over 12 years of manufacturing expertise, advanced CNC machining facilities, certified raw materials, strict quality control, competitive pricing and worldwide export capabilities, Ragnar Metals & Tubes is a trusted supplier of premium Super Duplex F53/F55 Taper Plugs.
