Duplex Pipe supplier Dammam
Duplex Pipe supplier Dammam offers high-quality stainless steel piping solutions designed for demanding industrial environments. These pipes, made from duplex stainless steel alloys, combine excellent corrosion resistance with superior mechanical strength, making them ideal for sectors such as oil and gas, petrochemical, and marine industries. The duplex grade ensures enhanced durability against chloride-induced stress corrosion cracking, providing long service life and reliability in harsh operating conditions.
Manufactured according to international standards like ASTM A790 and EN 10216, these pipes feature a balanced microstructure of austenite and ferrite phases, resulting in exceptional toughness and weldability. Available in various sizes, thicknesses, and finishes, the pipes cater to diverse project requirements, including high-pressure and high-temperature applications. Their resistance to pitting and crevice corrosion makes them particularly suitable for seawater and chemical processing environments.
Industrial buyers will appreciate the supplier’s capability to provide customized duplex piping solutions, including seamless and welded options, tailored to meet specific engineering specifications. The pipes undergo rigorous quality control processes such as non-destructive testing and dimensional inspections to ensure conformity and performance integrity. Additionally, the supplier offers comprehensive certification packages that comply with international export regulations, facilitating smooth logistics and customs clearance for global shipments.
These duplex stainless steel pipes are widely used in pipelines, heat exchangers, and structural components where reliability and safety are paramount. Their excellent mechanical properties allow for reduced wall thickness without compromising strength, which can lead to cost savings in material and installation. Furthermore, the supplier’s expertise in handling export documentation and packaging ensures that products reach international clients in optimal condition, ready for immediate deployment in critical infrastructure projects.
Lead Time
2–7 weeks depending on size
Delivery Terms
FOB, CIF, DDP
Shipping Modes
Sea / Air / Express
Why Duplex Pipe supplier Dammam 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 Pipe supplier Dammam
- 2. How to Choose the Right Manufacturer
- 3.Comparison of Duplex Pipe supplier Dammam
- 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 Pipe supplier Dammam
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 Pipe supplier Dammam
| 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 Pipes
- ✔ High strength-to-weight ratio
- ✔ Excellent corrosion resistance
- ✔ Good weldability and formability
- ✔ Suitable for high-temperature applications
- ✔ Cost-effective solution for various industries
- ✔ Available in various sizes and specifications
Technical Overview of Duplex Pipe
| Product | Composition | Usage | Standards |
|---|---|---|---|
| Duplex Stainless Steel Pipe | 22% Chromium, 5% Nickel, 3% Molybdenum | Oil and gas, chemical processing | ASTM A790, ASME SA790 |
| Super Duplex Stainless Steel Pipe | 25% Chromium, 7% Nickel, 4% Molybdenum | Marine applications, desalination plants | ASTM A928, ASME SA928 |
| Lean Duplex Stainless Steel Pipe | 22% Chromium, 2.5% Nickel | Construction, structural components | ASTM A240, ASME SA240 |
Specifications Table
| Material | Duplex Stainless Steel |
|---|---|
| Grades | S31803, S32205, S32750 |
| Standard | ASTM A790, ASME SA790 |
| Size Range | 1/2" to 24" (NPS) |
| Length | Standard lengths of 20 ft (6 m) and 40 ft (12 m) |
| Form | Seamless and Welded |
Available Grades Table
| Product | Composition | Applications |
|---|---|---|
| Duplex Stainless Steel Pipe S31803 | Fe, Ni 5-7%, Cr 22-23%, Mo 3-5% | Oil and gas, chemical processing |
| Duplex Stainless Steel Pipe S32205 | Fe, Ni 4.5-6.5%, Cr 22-23%, Mo 3-5% | Marine applications, pulp and paper industry |
| Duplex Stainless Steel Pipe S32750 | Fe, Ni 6-8%, Cr 24-26%, Mo 6-8% | Offshore and chemical processing |
| Duplex Stainless Steel Pipe S32760 | Fe, Ni 8-10%, Cr 25-27%, Mo 6-8% | Pressure vessels, heat exchangers |
| Duplex Stainless Steel Pipe S31500 | Fe, Cr 23-25%, Ni 5-7%, Mo 0.5-1% | Food processing, wastewater treatment |
Available Sizes of Duplex Pipe (MM)
| Size (MM) | Size (MM) |
|---|---|
| 15 | 20 |
| 25 | 32 |
| 40 | 50 |
| 65 | 80 |
| 100 | 125 |
| 150 | 200 |
| 250 | 300 |
| 350 | 400 |
| 450 | 500 |
| 600 | 700 |
Chemical Properties of Duplex Stainless Steel
| Element | Composition (%) |
|---|---|
| Chromium (Cr) | 22.0 - 25.0 |
| Nickel (Ni) | 4.5 - 7.0 |
| Molybdenum (Mo) | 3.0 - 5.0 |
| Manganese (Mn) | 0.5 - 2.0 |
| Silicon (Si) | 0.5 - 1.0 |
| Iron (Fe) | Balance |
| Carbon (C) | ≤ 0.03 |
| Phosphorus (P) | ≤ 0.03 |
Mechanical Properties of Duplex Stainless Steel
| Property | Value |
|---|---|
| Tensile Strength | 620 - 800 MPa |
| Yield Strength | 450 - 600 MPa |
| Elongation | 25 - 30% |
| Hardness | 200 - 300 HB |
| Impact Toughness | ≥ 40 J at -50°C |
Duplex Pipe – Physical & Thermal Properties
Density of Duplex Pipe
| Property | Metric | Imperial |
|---|---|---|
| Density | 7.8 g/cm³ | 0.282 lb/in³ |
Melting Point of Duplex Pipe
| Property | Metric | Imperial |
|---|---|---|
| Melting Point | 1400 - 1450 °C | 2552 - 2642 °F |
Specific Heat of Duplex Pipe
| Specific Heat of Duplex Pipe | ||
|---|---|---|
| Specific Heat (J/kg·K) | Temperature Range (°C) | Condition |
| 500 | 20 - 100 | Liquid |
| 700 | 100 - 300 | Liquid |
| 900 | 300 - 600 | Liquid |
Electrical Resistivity of Duplex Stainless Steel
| Electrical Resistivity | ||
|---|---|---|
| Value (µΩ·m) | Temperature (°C) | Treatment or Condition |
| 0.73 | 20 | Solution Annealed |
| 0.75 | 100 | |
| 0.78 | 200 | |
| 0.80 | 300 | |
| 0.82 | 400 | |
Equivalent of Duplex Pipe supplier Dammam
| Standard | Werkstoff Nr. | UNS |
|---|---|---|
| ASTM A790 | 1.4462 | S32205 |
| EN 10088-3 | X2CrNiMoN22-5-3 | S31803 |
Manufacturing Process & Heat Treatment of Duplex Steel Pipes
Annealing
The annealing process for duplex steel pipes involves heating the material to a temperature range of 1020-1100°C, followed by controlled cooling to relieve internal stresses and enhance ductility. This process helps to optimize the microstructure, ensuring a balanced phase distribution of austenite and ferrite.
Forging
Forging of duplex steel pipes is performed at elevated temperatures, typically between 1100-1200°C. This process improves the mechanical properties by refining the grain structure and enhancing the strength and toughness of the material. The forged pipes undergo subsequent machining to achieve desired dimensions and surface finish.
Hardening & Tempering
| Process | Temperature Range (°C) | Quenching Medium | Purpose |
|---|---|---|---|
| Hardening | 1000-1100 | Oil | Increase hardness and strength |
| Tempering | 600-800 | Air | Reduce brittleness and improve toughness |
| Stress Relieving | 300-600 | Air | Eliminate residual stresses |
The combination of these processes ensures that duplex steel pipes maintain excellent mechanical properties and corrosion resistance, making them suitable for various industrial applications.
Various Types
Duplex Stainless Steel Pipe 2205
- Diameter: 1/2" to 24"
- Condition: Annealed
- Applications: Oil and Gas, Chemical Processing
Duplex Stainless Steel Pipe 2507
- Diameter: 1" to 12"
- Condition: Pickled
- Applications: Marine Applications, Desalination Plants
Duplex Stainless Steel Pipe 32750
- Diameter: 1" to 10"
- Condition: Cold Drawn
- Applications: High Strength Applications, Pressure Vessels
Duplex Stainless Steel Pipe 2207
- Diameter: 3/4" to 16"
- Condition: Hot Finished
- Applications: Chemical Storage, Pulp and Paper Industry
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 Pipes
| Material Grade | Thickness | Price (USD / Kg) | Price (INR / Kg) |
|---|---|---|---|
| Duplex 2205 | 3 mm | $2.50 – $3.00 | ₹207 – ₹248 |
| Duplex 2205 | 6 mm | $2.40 – $2.90 | ₹199 – ₹241 |
| Duplex 2205 | 10 mm | $2.30 – $2.80 | ₹192 – ₹233 |
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 Pipes.
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