Duplex Flanges exporter Saudi Arabia
Duplex Flanges exporter Saudi Arabia offers high-quality, corrosion-resistant flanges designed to meet the demanding requirements of various industrial sectors. Manufactured from duplex stainless steel, these flanges combine the strength of austenitic and ferritic stainless steels, providing superior mechanical properties and excellent resistance to stress corrosion cracking. This makes them ideal for use in aggressive environments such as chemical processing, oil and gas, and marine applications.
These flanges come in various types including weld neck, slip-on, blind, and threaded, catering to different piping system needs. The duplex material typically adheres to standards like ASTM A182 or A815, ensuring durability and reliability under high pressure and temperature conditions. Their enhanced toughness and resistance to chloride-induced corrosion make them highly suitable for seawater and other chloride-rich environments common in the Middle East.
Industrial buyers will appreciate the precise manufacturing tolerances and dimensional accuracy maintained by exporters in Saudi Arabia, which comply with international specifications such as ASME, ANSI, and ISO. The flanges undergo rigorous quality control processes including hydrostatic testing, non-destructive testing, and material certification to guarantee performance and safety in critical applications.
Applications for these stainless steel flanges span across sectors such as petrochemicals, power generation, water treatment, and desalination plants. Their ability to withstand harsh chemical exposure and mechanical stress ensures long service life and reduced maintenance costs, making them a cost-effective solution for pipeline connections and pressure vessel assemblies.
Export readiness is a key focus, with suppliers in Saudi Arabia ensuring timely delivery, proper packaging for international shipping, and compliance with export regulations. This makes it convenient for global industrial buyers to source premium duplex flanges that meet stringent operational demands and contribute to the efficiency and safety of their infrastructure projects.
Lead Time
2–7 weeks depending on size
Delivery Terms
FOB, CIF, DDP
Shipping Modes
Sea / Air / Express
Why Duplex Flanges exporter Saudi Arabia 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 Saudi Arabia
- 2. How to Choose the Right Manufacturer
- 3.Comparison of Duplex Flanges exporter Saudi Arabia
- 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 Saudi Arabia
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 Saudi Arabia
| 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
- ✔ Excellent mechanical strength
- ✔ Suitable for high-temperature applications
- ✔ Cost-effective compared to other alloys
- ✔ Versatile for various industrial applications
- ✔ Available in a wide range of sizes and specifications
Technical Overview of Duplex Flanges
| Product | Composition | Usage | Standards |
|---|---|---|---|
| Duplex Stainless Steel Flanges | 22% Chromium, 5% Nickel, 3% Molybdenum | Used in oil and gas, chemical processing, and marine applications | ASTM A182, ASTM A240 |
| Duplex Slip-On Flanges | 25% Chromium, 7% Nickel, 4% Molybdenum | Ideal for low-pressure applications and piping systems | ASME B16.5, EN 10241 |
| Duplex Blind Flanges | 22% Chromium, 5% Nickel, 3% Molybdenum | Used to seal the ends of piping systems | ASTM A105, ASTM A240 |
Specifications Table
| Material | Duplex Stainless Steel |
|---|---|
| Grades | S32205, S31803 |
| Standard | ASTM A182, ASME SA182 |
| Size Range | 1/2" to 36" |
| Length | Customizable as per requirements |
| Form | Blind, Slip-on, Weld Neck, Threaded |
Available Grades Table
| Product | Composition | Applications |
|---|---|---|
| Duplex 2205 | 22% Cr, 5% Ni, 3% Mo | Oil and gas, marine applications, chemical processing |
| Duplex 2507 | 25% Cr, 7% Ni, 4% Mo | Seawater applications, chemical processing, pressure vessels |
| Super Duplex 2507 | 25% Cr, 7% Ni, 4% Mo, 0.3% N | Offshore platforms, chemical storage tanks, desalination plants |
| Duplex 31803 | 22% Cr, 5% Ni, 3% Mo, 0.17% N | Petrochemical industries, pulp and paper, wastewater treatment |
| Duplex 32750 | 27% Cr, 7% Ni, 4% Mo, 0.3% N | Chlor-alkali production, oil and gas, power generation |
Available Sizes of Duplex Flanges (MM)
| Size (MM) | Size (MM) |
|---|---|
| 15 | 150 |
| 20 | 160 |
| 25 | 180 |
| 32 | 200 |
| 40 | 250 |
| 50 | 300 |
| 65 | 350 |
| 80 | 400 |
| 100 | 450 |
| 150 | 600 |
Chemical Properties of Duplex Stainless Steel Flanges
| Element | Composition (%) |
|---|---|
| Iron (Fe) | 65.0 - 70.0 |
| Chromium (Cr) | 22.0 - 25.0 |
| Nickel (Ni) | 4.5 - 8.0 |
| Molybdenum (Mo) | 3.0 - 5.0 |
| Manganese (Mn) | 1.0 - 2.0 |
| Silicon (Si) | 0.5 - 1.0 |
| Carbon (C) | 0.03 max |
| Nitrogen (N) | 0.08 - 0.20 |
Mechanical Properties of Duplex Stainless Steel Flanges
| Property | Value |
|---|---|
| Tensile Strength | 620-800 MPa |
| Yield Strength | 450-600 MPa |
| Elongation | 25-40% |
| Hardness (HB) | 200-300 |
| Impact Toughness (Charpy V-notch) | ≥ 40 J at -50°C |
Duplex Flanges – Physical & Thermal Properties
Density of Duplex Flanges
| Property | Metric | Imperial |
|---|---|---|
| Density | 7.8 g/cm³ | 0.282 lb/in³ |
Melting Point of Duplex Flanges
| Property | Metric | Imperial |
|---|---|---|
| Melting Point | 1425 - 1550 °C | 2600 - 2820 °F |
Specific Heat of Duplex Flanges
| Specific Heat of Duplex Flanges | ||
|---|---|---|
| Specific Heat (J/kg·K) | Temperature Range (°C) | Condition |
| 500 | 25 - 100 | Room Temperature |
| 700 | 100 - 500 | Heating |
| 900 | 500 - 800 | High Temperature |
Electrical Resistivity of Duplex Steel Flanges
| Electrical Resistivity | ||
|---|---|---|
| Value (µΩ·m) | Temperature (°C) | Treatment or Condition |
| 0.73 | 20 | As-Received |
| 0.75 | 100 | |
| 0.78 | 200 | |
| 0.80 | 300 | |
| 0.82 | 400 | |
Equivalent of Duplex Flanges
| Standard | Werkstoff Nr. | UNS |
|---|---|---|
| ASTM A182 | 1.4462 | S31803 |
| EN 10088-3 | X2CrNiMoN22-5-3 | S32205 |
Manufacturing Process & Heat Treatment of Duplex Flanges
Annealing
Annealing of duplex flanges involves heating the material to a temperature range of 950°C to 1050°C, followed by a controlled cooling process. This treatment helps to relieve internal stresses, improve ductility, and enhance the overall mechanical properties of the flanges, ensuring they meet stringent industrial standards.
Forging
The forging process for duplex flanges is conducted at elevated temperatures, typically between 950°C and 1200°C. This method enhances the strength and integrity of the material by refining its grain structure, resulting in a product that exhibits superior mechanical properties and resistance to corrosion.
Hardening & Tempering
| Process | Temperature Range (°C) | Quenching Medium | Purpose |
|---|---|---|---|
| Hardening | 1020 - 1100 | Oil | To increase hardness and strength |
| Tempering | 600 - 800 | Air | To reduce brittleness and improve toughness |
| Stress Relieving | 600 - 700 | Air | To eliminate residual stresses from machining |
The combination of these heat treatment processes ensures that duplex flanges manufactured for export meet the highest standards of quality and performance, making them suitable for various demanding applications in industries such as oil and gas, petrochemical, and marine.
Various Types
Duplex Steel Blind Flanges
- Dimensions: 1" to 24"
- Condition: Hot Finished and Cold Finished
- Applications: Oil & Gas, Chemical Processing
Duplex Steel Weld Neck Flanges
- Dimensions: 2" to 30"
- Condition: Machined and As-Welded
- Applications: Power Generation, Marine Applications
Duplex Steel Socket Weld Flanges
- Dimensions: 1/2" to 12"
- Condition: Cold Finished
- Applications: Piping Systems, Water Treatment
Duplex Steel Slip-On Flanges
- Dimensions: 1" to 36"
- Condition: As-Cast and Machined
- Applications: Construction, HVAC Systems
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 | $5.00 – $5.50 | ₹410 – ₹450 |
| Duplex Flanges | 6 mm | $5.20 – $5.70 | ₹425 – ₹465 |
| Duplex Flanges | 10 mm | $5.50 – $6.00 | ₹450 – ₹490 |
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
- Duplex Steel Pipe Supplier Saudi Arabia
- Stainless Steel Flanges Manufacturer Saudi Arabia
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- Carbon Steel Flanges Supplier Saudi Arabia
- Forged Flanges Exporter Saudi Arabia
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