Duplex Flanges exporter in Bahrain
Duplex Flanges exporter in Bahrain plays a crucial role in supplying high-quality, corrosion-resistant components to various industrial sectors. These flanges are manufactured from duplex stainless steel, known for its excellent strength and superior resistance to stress corrosion cracking and chloride-induced corrosion. The unique microstructure of duplex alloys combines the benefits of austenitic and ferritic stainless steels, making these flanges ideal for demanding environments.
Typically available in several types such as weld neck, slip-on, blind, and socket weld flanges, these components conform to international standards including ASTM A182 and ASME B16.5. Their robust construction ensures reliable performance in high-pressure and high-temperature applications, commonly found in oil and gas, petrochemical, and marine industries. The duplex grade enhances durability, extending the service life of piping systems and reducing maintenance costs.
Our export-ready duplex fittings are precision-engineered to meet stringent quality control measures, including dimensional accuracy and surface finish requirements. Each flange undergoes rigorous testing procedures such as radiographic inspection, hydrostatic testing, and chemical composition analysis to ensure compliance with global specifications. This commitment to quality guarantees that the products delivered to Bahrain’s industrial market maintain optimal functionality and safety standards.
With Bahrain’s strategic location as a hub for Middle Eastern energy and manufacturing sectors, the demand for reliable duplex stainless steel flanges continues to grow. Exporters leverage advanced logistics and packaging solutions to ensure timely delivery while preserving product integrity during transit. Industrial buyers can expect comprehensive support including technical documentation, certification, and after-sales service tailored to their project needs.
Lead Time
2–7 weeks depending on size
Delivery Terms
FOB, CIF, DDP
Shipping Modes
Sea / Air / Express
Why Duplex Flanges exporter in Bahrain Are Preferred by Global Buyers
- ✔ Factory Pricing: Direct manufacturer rates with bulk stock
- ✔ Certified Quality: ISO & 3rd-party tested, EN 10204 certified
- ✔ Export-Ready: Sea-worthy packaging for on-time delivery
- ✔ Fast RFQs: Quick quotes for custom sizes & quantities
- ✔ Traceability: 100% heat number tracking from raw material to finished product
Trusted by industries like oil & gas, petrochemicals, power, marine, and heavy engineering.
- Manufacturing Capacity: 500 MT / Month
- Export Experience: 15+ Years
- Countries Served: 50+
- Annual Export Volume: 5,500 MT
Table of Contents
- 1. What is Duplex Flanges exporter in Bahrain
- 2. How to Choose the Right Manufacturer
- 3.Comparison of Duplex Flanges exporter in Bahrain
- 4. Why Global Buyers Source from Ragnar Metals and Tubes
- 5. Features
- 6. Technical Overview
- 7. Specifications
- 8. Available Grades
- 9. Available Sizes
- 10. Chemical Properties
- 11. Mechanical Properties
- 12. Physical & Thermal Properties
- 13. Electrical Resistivity
- 14. Equivalent Grades
- 15. Manufacturing Process & Heat Treatment
- 16. Various Types
- 17. Applications & Uses
- 18. Industries We Serve
- 19. Latest Price List
- 20. MOQ & Payment Terms
- 21. Export Packaging & Shipping
- 22. Cities We Supply in India
- 23. Countries We Export Worldwide
- 24. Our Certifications
- 25. Quality Inspection & Testing
- 26. Our Other Product Types
- 27. People Also Search For
- 28. Frequently Asked Questions
- 29. About Ragnar Metals and Tubes
How to Choose the Right Duplex Flanges exporter in Bahrain
India is home to hundreds of manufacturers ranging from small job shops to large ISO-certified exporters. International and domestic buyers typically evaluate manufacturers based on quality compliance, production capacity, export experience, and pricing transparency.
- Certification & international standards (ASME, ASTM, EN)
- Manufacturing capability vs trading activity
- Export documentation & inspection support
- Stock availability & lead time reliability
- Past supply experience in oil & gas, EPC & heavy industries
Comparison Factors Among Duplex Flanges exporter in Bahrain
| Evaluation Factor | Small Local Suppliers | Trading Companies | ISO-Certified Manufacturers |
|---|---|---|---|
| Manufacturing Control | Limited | None | Full in-house / audited partners |
| International Standards | Basic | Depends on source | ASME / ASTM / EN |
| Inspection & MTCs | Limited | Inconsistent | EN 10204 3.1 / 3.2 |
| Export Experience | Low | Medium | 50+ countries |
| Risk for EPC Projects | High | Medium | Low |
International buyers typically prefer ISO-certified manufacturers for large-scale or critical applications due to better quality control, documentation, and lower project risk.
Why Global Buyers Choose Ragnar Metals and Tubes
Ragnar Metals and Tubes is a trusted ISO 9001:2015 certified manufacturer and global exporter of ferro alloys and metal products, supplying consistent, high-quality materials to customers across USA, UK, Europe, Middle East, Africa, and Asia-Pacific. Our focus on quality assurance, cost efficiency, and on-time delivery makes us a preferred sourcing partner for international buyers.
| Key Advantage | Buyer Benefit |
|---|---|
| ISO 9001:2015 Certified Manufacturing | Consistent quality with documented QA systems and process control |
| ASME / ASTM / EN Compliant Products | Globally accepted standards with EN 10204 3.1 / 3.2 MTCs |
| Lower Manufacturing & Sourcing Costs | Save up to 15–20% compared to European suppliers |
| Favorable Exchange Rate Advantage | Reduced landed cost for international importers |
| In-House Testing & Inspection Facilities | Strict chemical, mechanical & dimensional quality checks |
| Bulk Stock & High Production Capacity | Fast order fulfillment and stable supply for large projects |
| Custom Sizes & Drawing-Based Manufacturing | Products manufactured exactly to buyer specifications |
| Export-Grade Packaging & Global Logistics | Sea-worthy packing, palletization & worldwide shipping support |
| Faster Global Shipping Routes | Optimized logistics for Middle East, Africa & Southeast Asia |
| Technical & After-Sales Support | Project assistance, documentation & responsive RFQ handling |
| Trusted by Global Steel & EPC Companies | Proven export experience across 50+ countries |
Features of Duplex Flanges
- ✔ High corrosion resistance for longevity
- ✔ Excellent strength-to-weight ratio
- ✔ Suitable for a wide range of temperatures and pressures
- ✔ Enhanced weldability and machinability
- ✔ Cost-effective solution for various applications
- ✔ Compliance with international standards and certifications
Technical Overview of Duplex Flanges
| Product | Composition | Usage | Standards |
|---|---|---|---|
| Duplex 2205 Flanges | 22% Chromium, 5% Nickel, 3% Molybdenum | Used in oil and gas, chemical processing, and marine applications | ASTM A182, ASTM A240 |
| Duplex 2507 Flanges | 25% Chromium, 7% Nickel, 4% Molybdenum | Ideal for seawater applications and high chloride environments | ASTM A182, ASTM A240 |
| Duplex 31803 Flanges | 23% Chromium, 4% Nickel, 3% Molybdenum | Commonly used in pulp and paper, and wastewater treatment | ASTM A182, ASTM A240 |
Specifications Table
| Material | Duplex Stainless Steel |
|---|---|
| Grades | 2205, 2507 |
| Standard | ASME B16.5, ASTM A182 |
| Size Range | 1/2" to 24" |
| Length | Customizable |
| Form | Slip-On, Blind, Weld Neck, Threaded |
Available Grades Table
| Product | Composition | Applications |
|---|---|---|
| Duplex 2205 Flanges | 22% Cr, 5% Ni, 3% Mo | Oil and gas, marine applications |
| Duplex 2507 Flanges | 25% Cr, 7% Ni, 4% Mo | Chemical processing, desalination plants |
| Super Duplex 2507 Flanges | 25% Cr, 7% Ni, 4% Mo | High chloride environments, offshore platforms |
| Duplex 31803 Flanges | 22% Cr, 5% Ni, 3% Mo | Storage tanks, pressure vessels |
| Duplex 32750 Flanges | 25% Cr, 6% Ni, 4% Mo | Refineries, pulp and paper industries |
Available Sizes of Duplex Flanges (MM)
| Size (MM) | Size (MM) |
|---|---|
| 15 | 15 |
| 20 | 20 |
| 25 | 25 |
| 32 | 32 |
| 40 | 40 |
| 50 | 50 |
| 65 | 65 |
| 80 | 80 |
| 100 | 100 |
| 150 | 150 |
Chemical Properties of Duplex Stainless Steel (UNS S32205)
| Element | Composition (%) |
|---|---|
| Chromium (Cr) | 22.0 - 23.0 |
| Nickel (Ni) | 4.5 - 6.5 |
| Molybdenum (Mo) | 3.0 - 5.0 |
| Manganese (Mn) | 1.0 max |
| Silicon (Si) | 0.8 max |
| Carbon (C) | 0.03 max |
| Sulfur (S) | 0.01 max |
| Nitrogen (N) | 0.08 - 0.2 |
Mechanical Properties of Duplex Stainless Steel
| Property | Value |
|---|---|
| Tensile Strength (MPa) | 620 - 800 |
| Yield Strength (MPa) | 450 - 600 |
| Elongation (%) | 25 - 30 |
| Hardness (HB) | 250 - 300 |
| Impact Toughness (J) | 50 - 100 |
Duplex Steel – Physical & Thermal Properties
Density of Duplex Steel
| Property | Metric | Imperial |
|---|---|---|
| Density | 7.8 g/cm³ | 0.28 lb/in³ |
Melting Point of Duplex Steel
| Property | Metric | Imperial |
|---|---|---|
| Melting Point | 1350 - 1450 °C | 2462 - 2642 °F |
Specific Heat of Duplex Steel
| Specific Heat of Duplex Steel | ||
|---|---|---|
| Specific Heat (J/kg·K) | Temperature Range (°C) | Condition |
| 500 | 20 - 100 | Annealed |
| 460 | 100 - 400 | Annealed |
| 400 | 400 - 800 | Annealed |
Electrical Resistivity of Duplex Stainless Steel
| Electrical Resistivity | ||
|---|---|---|
| Value (µΩ·m) | Temperature (°C) | Treatment or Condition |
| 75 | 20 | As fabricated |
| 80 | 100 | |
| 85 | 200 | |
| 90 | 400 | |
| 95 | 600 | |
Equivalent of Duplex Flanges
| Standard | Werkstoff Nr. | UNS |
|---|---|---|
| ASTM A182 | 1.4462 | S32205 |
| API 6A | 1.4462 | S32205 |
Manufacturing Process & Heat Treatment of Duplex Flanges
Annealing
Annealing of duplex flanges involves heating the material to a temperature range of 1000-1100°C, followed by controlled cooling. This process is essential for relieving internal stresses, improving ductility, and refining the grain structure to enhance overall performance in service.
Forging
The forging process for duplex flanges includes hot working the steel at temperatures between 1100-1200°C. This method enhances the mechanical properties by refining the grain structure and ensuring uniformity in the material, which is crucial for high-pressure applications.
Hardening & Tempering
| Process | Temperature Range (°C) | Quenching Medium | Purpose |
|---|---|---|---|
| Hardening | 1020-1100 | Water or Oil | Increase hardness and strength of the material. |
| Tempering | 600-800 | Air | Reduce brittleness and improve toughness after hardening. |
| Post-Heat Treatment | 500-600 | Air | Stabilize the microstructure and relieve residual stresses. |
The combination of these processes ensures that duplex flanges meet stringent international standards for strength, durability, and corrosion resistance, making them ideal for various industrial applications.
Various Types
Duplex Stainless Steel Slip-On Flange
- Size: 1" to 24"
- Condition: Hot Finished / Cold Finished
- Applications: Oil and Gas, Chemical Processing
Duplex Stainless Steel Blind Flange
- Size: 1" to 36"
- Condition: Hot Finished / Cold Finished
- Applications: Water Treatment, Desalination Plants
Duplex Stainless Steel Weld Neck Flange
- Size: 1" to 30"
- Condition: Hot Finished / Cold Finished
- Applications: Petrochemical Industry, Piping Systems
Duplex Stainless Steel Socket Weld Flange
- Size: 1/2" to 4"
- Condition: Hot Finished / Cold Finished
- Applications: High Pressure Systems, Gas Pipelines
Applications & Uses
- Oil & Gas Industry: Pipelines, process piping, and high-pressure fluid handling systems.
- Petrochemical & Refineries: Reactors, heat exchangers, and chemical processing units.
- Water Treatment Plants: Filtration systems, storage tanks, and corrosion-resistant piping.
- Pharmaceutical Industry: Hygienic piping, sanitary fittings, and cleanroom equipment.
- Food & Beverage: Processing lines, storage vessels, and contamination-free pipelines.
- Automobile & Engineering: Exhaust systems, structural parts, and precision components.
- Power & Energy Sector: Boilers, condensers, and turbine piping systems.
- Marine & Offshore: Shipbuilding, offshore platforms, and coastal infrastructure.
- Construction & Infrastructure: Structural frameworks, bridges, and industrial buildings.
Industries We Serve
Our stainless steel, alloy steel, and high-performance metal products are widely used across the following industries:
Latest Price List of Duplex Flanges
| Material Grade | Thickness | Price (USD / Kg) | Price (INR / Kg) |
|---|---|---|---|
| Duplex Flanges | 3 mm | $5.50 – $6.00 | ₹450 – ₹490 |
| Duplex Flanges | 6 mm | $5.20 – $5.80 | ₹430 – ₹480 |
| Duplex Flanges | 10 mm | $4.90 – $5.40 | ₹400 – ₹450 |
Note: Prices are indicative and may vary based on size, quantity, raw material cost, and delivery location. Contact us for the latest quotation for Duplex Flanges.
MOQ & Payment Terms
Minimum Order Quantity: 25–100 Kg depending on part size and grade.
Payment Terms: Depending On Grade and Quantity Size
Export Packaging & Shipping
- Seaworthy, fumigated wooden crates with waterproof inner lining
- Palletised packing with clear shipping marks and heat number identification
- Container stuffing supervision with loading photographs available on request
We Exported to 50+ Countries Worldwide
| Global Export Destinations | |||||
|---|---|---|---|---|---|
| United States | Canada | Mexico | United Kingdom | Germany | Netherlands |
| Italy | Spain | South Africa | Australia | India | Korea |
| United Arab Emirates | Saudi Arabia | Qatar | Kuwait | Oman | Bahrain |
| Singapore | Malaysia | Indonesia | Dubai | Riyadh | Dammam |
Our Certifications
We are a certified manufacturer and exporter, committed to strict quality control and international compliance standards. Below are our key certifications.
GST Registered
ISO 9001:2015
ISO 1002:2018
Udyam MSME Registration
Testing Process & Quality Assurance – Ragnar Metals & Tubes
At Ragnar Metals & Tubes, our testing process ensures the safety, reliability, and performance of stainless steel and alloy steel products supplied for global industrial and infrastructure projects. Each batch is verified from raw material selection to final dispatch under internationally recognized standards including ASTM, ASME, ISO, DIN, and EN.
Detects internal flaws using high-frequency sound waves
Measures yield strength, elongation, and material durability
Evaluates toughness under low-temperature and high-stress conditions
Ensures smoothness, coating quality, and visual compliance
Enhances hardness, strength, and corrosion resistance
Measures resistance to deformation and wear
Documentation & Global Compliance
- ✔ EN 10204 3.1 / 3.2 Mill Test Certificates (MTC)
- ✔ Batch-wise quality traceability and inspection records
- ✔ Third-party inspection by SGS, TUV, Bureau Veritas & Lloyd’s
- ✔ Export documentation support for customs and international shipping
Supporting supply for oil & gas, petrochemical, power generation, marine, infrastructure, and heavy engineering industries worldwide.
Related Products
Explore our full range of stainless steel and alloy steel products including pipes, tubes, fittings, flanges, sheets, plates, spools, fasteners, round bars, and special grades manufactured for industrial, infrastructure, and global export applications.
People Also Search For
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Frequently Asked Questions
About Ragnar Metals & Tubes
- ✔ Leading manufacturer, stockist, and exporter of stainless steel and alloy steel products for industrial and infrastructure projects
- ✔ ISO 9001:2015 certified quality management system ensuring consistent product reliability and compliance
- ✔ Specialized in precision pipes, tubes, fittings, flanges, sheets, plates, fasteners, and round bars
- ✔ Modern processing and testing facilities with advanced manufacturing and inspection equipment
- ✔ Custom-engineered solutions based on client drawings and technical specifications
- ✔ Full material traceability with EN 10204 3.1 / 3.2 mill test certification
- ✔ Compliance with ASTM, ASME, DIN, EN, and ISO international standards
- ✔ Trusted global supplier supporting oil & gas, petrochemical, power, marine, and heavy engineering industries