Duplex Flanges Saudi Arabia
Duplex Flanges Saudi Arabia are manufactured to meet stringent international standards such as ASTM A182 and EN 1092-1, ensuring high corrosion resistance and mechanical strength. These components are typically produced from duplex stainless steel grades like 2205 and 2507, suitable for demanding industrial environments.
Common applications include oil and gas pipelines, chemical processing plants, and marine engineering, where durability and resistance to stress corrosion cracking are critical. The flanges undergo rigorous non-destructive testing methods, including ultrasonic and dye penetrant inspections, to guarantee quality.
Export procedures involve compliance with international shipping regulations, accompanied by detailed documentation such as Mill Test Certificates (MTC) and third-party inspection reports. Packaging is designed to prevent damage during transit, often involving wooden crates and corrosion inhibitors.
Efficient logistics coordination ensures timely delivery to global clients, with considerations for customs clearance and freight forwarding. This systematic approach supports seamless integration into complex industrial supply chains worldwide.
Global Delivery & Export Assurance
Trusted by EPC contractors, OEMs, and industrial buyers in 40+ countries
β± Fast Lead Time
2β7 weeks depending on size & specification
Expedited production available on requestπ¦ Flexible Delivery Terms
FOB, CIF, CFR, DDP (Incoterms 2020)
Door-to-port and door-to-door optionsβοΈ Global Shipping
Sea Freight / Air Cargo / Express Courier
Export documentation & tracking includedRequest Export Pricing for Duplex Flanges Saudi Arabia
Trusted by EPC contractors, procurement teams, and global industrial buyers across 50+ countries for certified supply and on-time delivery.
Manufacturer Pricing
Factory-direct rates with bulk stock availability to reduce your total landed cost.
International Certifications
ISO, EN 10204 3.1, SGS & TPI approved with mill test certificates on every shipment.
Export-Ready Packaging
Sea-worthy, container-ready packaging for safe international transit and on-time delivery.
Table of Contents
- 1. What is Duplex Flanges Saudi Arabia
- 2. Why Choose Ragnar Pipe and Tube
- 3. Export Delivery & Lead Time Information
- 4. How to Choose the Right Manufacturer
- 5. Comparison of Duplex Flanges Saudi Arabia
- 6. Why Global Buyers Source from Ragnar Metal and Tube
- 7. Features
- 8. Technical Overview
- 9. Specifications
- 10. Available Grades
- 11. Available Sizes
- 12. Chemical Properties
- 13. Mechanical Properties
- 14. Physical & Thermal Properties
- 15. Electrical Resistivity
- 16. Equivalent Grades
- 17. Manufacturing Process & Heat Treatment
- 18. Various Types
- 19. Applications & Uses
- 20. Industries We Serve
- 21. Latest Price List
- 22. MOQ & Payment Terms
- 23. Export Packaging & Shipping
- 24. Cities We Supply in India
- 25. Countries We Export Worldwide
- 26. Our Certifications
- 27. Quality Inspection & Testing
- 28. Our Other Product Types
- 29. People Also Search For
- 30. Frequently Asked Questions
- 31. About Ragnar Metal and Tube
How to Choose the Right Supplier for Duplex Flanges Saudi Arabia
Choosing the right supplier for Duplex Flanges Saudi Arabia plays a critical role in ensuring product quality, project safety, and long-term cost efficiency. With a wide range of manufacturers, stockists, and exporters operating across India, buyers must look beyond pricing and focus on reliability, certifications, and export readiness.
At Ragnar Metals & Tubes, we support global EPC contractors, procurement managers, and industrial buyers by delivering fully certified, traceable, and export-compliant metal products that meet international standards and country-specific import regulations.
- International standards compliance β ASTM, ASME, EN, ISO, and EN 10204 3.1 material test certification
- Verified manufacturing and sourcing β Direct mill supply, in-house processing, and strict quality inspections
- Inspection and export documentation β SGS, TPI, BV, and customs-ready paperwork for smooth international clearance
- Stock availability and delivery timelines β Reliable lead times for urgent, bulk, and project-based requirements
- Global project experience β Proven supply for oil & gas, EPC, petrochemical, power generation, and heavy engineering industries
Comparison Guide for Duplex Flanges Saudi Arabia
Understand the key differences between local suppliers, trading firms, and ISO-certified manufacturers to make informed sourcing decisions for international and domestic projects.
| Evaluation Factor | Small Local Suppliers | Trading Companies | ISO-Certified Manufacturers |
|---|---|---|---|
| Manufacturing Control | Limited in-house processing | Dependent on third-party mills | Full in-house production or audited partner facilities |
| International Standards | Basic or regional compliance | Varies by sourcing mill | ASTM, ASME, EN, ISO certified materials |
| Inspection & Certification | Limited documentation | Inconsistent MTC availability | EN 10204 3.1 / 3.2, SGS, TPI, BV support |
| Export & Logistics Experience | Low or domestic-only | Moderate international handling | Established exports to 50+ countries |
| Project Risk Level | High | Medium | Low |
For critical applications in oil & gas, EPC, power generation, marine, and infrastructure projects, buyers typically prioritize ISO-certified manufacturers to ensure compliance, traceability, and long-term performance.
Why Global Buyers Partner with Ragnar Metals & Tubes
Ragnar Metals & Tubes is a globally trusted manufacturer, stockist, and exporter of stainless steel, duplex steel, alloy steel, and high-performance piping solutions supporting EPC contractors, industrial plants, and infrastructure projects across the Middle East, Europe, Africa, Southeast Asia, and the Americas . Our strength lies in technical expertise, certified quality systems, and export-focused supply chains designed for long-term project reliability.
| Ragnar Advantage | How It Benefits You |
|---|---|
| ISO-Certified Quality Management Systems | Documented inspection, traceability, and process controls ensure consistent material performance and compliance. |
| ASTM, ASME & EN Standard Compliance | Internationally approved specifications with EN 10204 3.1 / 3.2 mill test certificates for project and regulatory acceptance. |
| Strategic Stockholding & Production Partnerships | Faster lead times and stable supply for shutdowns, expansions, and large-scale EPC requirements. |
| Global Export & Documentation Expertise | Complete handling of COO, HS codes, packing lists, invoices, and third-party inspections for smooth customs clearance. |
| In-House & Third-Party Quality Verification | Chemical, mechanical, and dimensional testing supported by SGS, TPI, BV, and client-nominated agencies. |
| Custom Manufacturing & Project-Based Supply | Drawing-based production, special lengths, and grade substitutions engineered to match site and design requirements. |
| Export-Grade Packaging & Container Planning | Sea-worthy packing, fumigated pallets, and optimized container loading to minimize transit damage and logistics costs. |
| Multi-Industry Project Experience | Proven supply for oil & gas, power generation, marine, petrochemical, water treatment, and heavy engineering sectors. |
| Responsive RFQ & Technical Support Team | Fast quotations, material selection guidance, and documentation support throughout the procurement lifecycle. |
| Established Global Supply Network | Reliable exports to 50+ countries with repeat buyers and long-term project partnerships. |
Key Features of Duplex Flanges
- β High corrosion resistance, ideal for harsh environments
- β Excellent strength-to-weight ratio for reduced weight
- β Versatile applications across various industries
- β Enhanced resistance to stress corrosion cracking
- β Cost-effective alternative to higher alloy materials
- β Available in various sizes and specifications
Technical Overview of Duplex Flanges
| Product | Composition | Usage | Standards |
|---|---|---|---|
| Duplex Flanges | Fe, Cr (22%), Ni (5.5%), Mo (3%), N (0.2%) | Oil and Gas Industry | ASTM A182, ASTM A240, UNS S32205 |
| Duplex Flanges | Fe, Cr (25%), Ni (7%), Mo (4%), N (0.3%) | Marine Applications | EN 10088-2, UNS S32750 |
| Duplex Flanges | Fe, Cr (19%), Ni (2.5%), Mo (1.5%), N (0.1%) | Pulp and Paper Industry | ASTM A240, ASTM A182, UNS S31803 |
Specifications Table
| Material | Duplex Stainless Steel |
|---|---|
| Grades | 2205, 2507 |
| Standard | ASTM A182, ASME B16.5 |
| Size Range | 1" to 36" |
| Length | Custom lengths available upon request |
| Form | Slip-on, Blind, Weld Neck, Threaded |
Available Grades Table
| Product | Composition | Applications |
|---|---|---|
| Duplex Pipes | UNS S31803 (22% Cr, 5% Ni, 3% Mo) | Oil and gas industries, chemical processing |
| Duplex Tubes | UNS S32205 (22% Cr, 5.5% Ni, 3% Mo) | Heat exchangers, pressure vessels |
| Duplex Fittings | UNS S32550 (25% Cr, 7% Ni, 4% Mo) | Marine applications, desalination plants |
| Duplex Bars | UNS S32304 (24% Cr, 4% Ni) | Construction, structural applications |
| Duplex Plates | UNS S32750 (25% Cr, 7% Ni, 5% Mo) | Power generation, chemical storage |
Available Sizes of Duplex Flanges (MM)
| Size (MM) | Size (MM) |
|---|---|
| 10 | 20 |
| 30 | 40 |
| 50 | 60 |
| 70 | 80 |
| 90 | 100 |
| 110 | 120 |
| 130 | 140 |
| 150 | 160 |
| 170 | 180 |
| 190 | 200 |
Chemical Properties of Duplex Flanges
| Element | Composition (%) |
|---|---|
| Iron (Fe) | 60.0 - 70.0 |
| Chromium (Cr) | 21.0 - 24.0 |
| Nickel (Ni) | 4.5 - 8.0 |
| Molybdenum (Mo) | 3.0 - 5.0 |
| Manganese (Mn) | 0.5 - 2.0 |
| Nitrogen (N) | 0.08 - 0.20 |
| Carbon (C) | 0.03 max |
| Silicon (Si) | 0.5 - 1.0 |
Mechanical Properties of Duplex Flanges
| Property | Value |
|---|---|
| Tensile Strength (MPa) | 620 - 800 |
| Yield Strength (MPa) | 450 - 600 |
| Elongation (%) | 25 |
| Hardness (HB) | 270 - 330 |
| Impact Toughness (J) | 40 (at -50Β°C) |
Duplex Flanges Saudi Arabia β Physical & Thermal Properties
Density of Duplex Flanges Saudi Arabia
| Property | Metric | Imperial |
|---|---|---|
| Density | 7,800 kg/mΒ³ | 485 lb/ftΒ³ |
Melting Point of Duplex Flanges Saudi Arabia
| Property | Metric | Imperial |
|---|---|---|
| Melting Point | 1,400 - 1,450 Β°C | 2,552 - 2,642 Β°F |
Specific Heat of Duplex Flanges Saudi Arabia
| Specific Heat of Duplex Flanges Saudi Arabia | ||
|---|---|---|
| Specific Heat (J/kgΒ·K) | Temperature Range (Β°C) | Condition |
| 500 | 20 - 100 | Room Temperature |
| 600 | 100 - 300 | Heating |
| 700 | 300 - 800 | High Temperature |
Electrical Resistivity of Duplex Flanges
| Electrical Resistivity | ||
|---|---|---|
| Value (¡Ω·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 Saudi Arabia
| Standard | Werkstoff Nr. | UNS |
|---|---|---|
| ASTM A182 | 1.4462 | S31803 |
| ASTM A240 | 1.4462 | S31803 |
Manufacturing Process & Heat Treatment of Duplex Flanges
Annealing
Annealing of duplex flanges involves heating the material to a temperature range of 1020Β°C to 1100Β°C, followed by controlled cooling. This process enhances ductility, reduces hardness, and relieves internal stresses, ensuring improved machinability and performance in service.
Forging
The forging process for duplex flanges typically involves heating the material to approximately 1150Β°C to 1200Β°C and then shaping it under pressure. This process improves the strength and structural integrity of the flanges by refining the grain structure and enhancing mechanical properties.
Hardening & Tempering
| Process | Temperature Range (Β°C) | Quenching Medium | Purpose |
|---|---|---|---|
| Hardening | 1000 - 1100 | Water or Oil | To increase hardness and strength of the material. |
| Tempering | 600 - 800 | Air | To reduce brittleness and improve toughness. |
| Stress Relieving | 300 - 600 | Air | To relieve residual stresses from machining and forming. |
Through these manufacturing and heat treatment processes, duplex flanges achieve optimal performance characteristics, making them suitable for a variety of industrial applications, particularly in the oil and gas sector.
Various Types
Duplex Stainless Steel Flanges
- Dimensions: 1" to 24"
- Condition: Hot Rolled, Cold Drawn
- Applications: Oil & Gas, Chemical Processing, Marine
Super Duplex Flanges
- Dimensions: 1" to 30"
- Condition: Pickled and Passivated
- Applications: High-Pressure Applications, Desalination Plants
Duplex Weld Neck Flanges
- Dimensions: 1" to 24"
- Condition: Annealed
- Applications: Piping Systems, Pressure Vessels
Duplex Slip-On Flanges
- Dimensions: 1" to 12"
- Condition: Cold Worked
- Applications: Low Pressure Systems, General Use
Applications & Uses of Stainless Steel and Alloy Products
- 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 β $6.00 | βΉ450 β βΉ490 |
| Duplex Flanges | 6 mm | $5.80 β $6.30 | βΉ470 β βΉ510 |
| Duplex Flanges | 10 mm | $6.00 β $6.50 | βΉ490 β βΉ530 |
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 for Metal Products
- Minimum Order Quantity (MOQ): Typically 25β100 Kg, depending on product type, dimensions, and material grade.
- Payment Terms: Flexible terms based on order volume, grade selection, and delivery location. Advance payment or mutually agreed commercial terms apply.
Steel Export Packaging & International Shipping Services from India
We provide professional steel export packaging and global shipping services from India, ensuring stainless steel and alloy steel products are securely packed, documented, and delivered to international ports including the Middle East, Europe, Africa, and Southeast Asia with full compliance to international trade and quality standards.
- Seaworthy Export Packing: Fumigated wooden crates with waterproof lining to protect steel products during ocean transit.
- Palletised & Marked Shipments: Heat number identification, batch labeling, and export documentation for traceability and customs clearance.
- Container Stuffing & Inspection: Supervised loading with photographs, weight checks, and final quality inspection before dispatch.
We Export Stainless Steel & Alloy Products 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 & Export Compliance Standards
We are a certified stainless steel and alloy steel manufacturer and global exporter from India, operating under internationally recognized quality, safety, and export compliance standards to ensure reliable supply for international buyers and industrial projects.
GST Registered Company β Government of India
ISO 9001:2015 β Quality Management System
ISO 1002:2018 - Quality Management System
Udyam Registration β MSME, Government of India
Testing Process & Quality Assurance β 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
- β EN 10204 3.1 / 3.2 Mill Test Certificates (MTC)
- β Batch-wise quality traceability and inspection records
- β Third-party inspection by SGS, TUV, Bureau Veritas & Lloydβs
- β 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 Suppliers Saudi Arabia
- Stainless Steel Flanges Manufacturers Saudi Arabia
- Nickel Alloy Flanges Saudi Arabia
- Carbon Steel Flanges Saudi Arabia
- Pipe Fittings Suppliers in Saudi Arabia
Frequently Asked Questions
About Ragnar Metals & Tubes
- β Leading manufacturer, stockist, and exporter of stainless steel and alloy steel products for industrial and infrastructure projects
- β ISO 9001:2015 certified quality management system ensuring consistent product reliability and compliance
- β Specialized in precision pipes, tubes, fittings, flanges, sheets, plates, fasteners, and round bars
- β Modern processing and testing facilities with advanced manufacturing and inspection equipment
- β Custom-engineered solutions based on client drawings and technical specifications
- β Full material traceability with EN 10204 3.1 / 3.2 mill test certification
- β Compliance with ASTM, ASME, DIN, EN, and ISO international standards
- β Trusted global supplier supporting oil & gas, petrochemical, power, marine, and heavy engineering industries