Duplex 2101 Round Bar
Duplex 2101 Round Bar is a high-performance stainless steel alloy known for its excellent strength and corrosion resistance. This material combines the benefits of both austenitic and ferritic stainless steels, offering superior durability in harsh industrial environments. Manufactured in a precise round bar form, it is widely utilized in applications requiring enhanced mechanical properties and resistance to stress corrosion cracking.
Typically composed of approximately 21% chromium, 1% molybdenum, and 1.5% nickel, this duplex stainless steel grade delivers a balanced microstructure that ensures toughness and weldability. The round bars are produced following stringent quality standards, with tight dimensional tolerances and surface finishes suitable for machining or fabrication. Its chemical composition and heat treatment processes contribute to improved yield strength, making it a preferred choice for structural components and pressure vessels.
Industries such as oil and gas, petrochemical, marine, and chemical processing rely heavily on this alloy for piping, shafts, and fasteners exposed to chloride-rich environments. Its resistance to pitting and crevice corrosion, combined with high tensile strength, makes it ideal for offshore platforms and desalination plants. The round bars are often supplied in various diameters and lengths to meet specific engineering requirements.
Export-ready and compliant with international standards like ASTM A276 and EN 10088, these bars are packaged to withstand long transit conditions, ensuring product integrity upon delivery. Suppliers typically provide detailed certification documents including mill test reports, material traceability, and compliance certificates to facilitate seamless import and quality assurance processes for global buyers.
For industrial buyers seeking reliable, robust, and versatile stainless steel round bars, this duplex grade offers an excellent balance of performance and cost-effectiveness. Its adaptability across demanding applications and proven track record in corrosive settings make it a strategic material investment for manufacturing and maintenance operations worldwide.
Lead Time
2–7 weeks depending on size
Delivery Terms
FOB, CIF, DDP
Shipping Modes
Sea / Air / Express
Why Duplex 2101 Round Bar 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 2101 Round Bar
- 2. How to Choose the Right Manufacturer
- 3.Comparison of Duplex 2101 Round Bar
- 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 2101 Round Bar
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 2101 Round Bar
| 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 2101 Round Bar
- ✔ Excellent corrosion resistance in a variety of environments
- ✔ High strength-to-weight ratio for improved performance
- ✔ Good weldability and formability for versatile applications
- ✔ Superior mechanical properties at elevated temperatures
- ✔ Cost-effective alternative to higher alloy stainless steels
- ✔ Easily machinable for precision engineering projects
Technical Overview of Duplex 2101 Round Bar
| Product | Composition | Usage | Standards |
|---|---|---|---|
| Duplex 2101 Round Bar | 21% Chromium, 1.5% Nickel, 0.2% Molybdenum, balance Iron | Used in construction, automotive, and marine applications due to its high strength and corrosion resistance | ASTM A240, ASTM A276 |
| Duplex 2101 Round Bar | 21% Chromium, 1.5% Nickel, 0.2% Molybdenum, balance Iron | Suitable for applications in aggressive environments, including chemical processing and oil & gas | EN 10088-3, ISO 9445 |
| Duplex 2101 Round Bar | 21% Chromium, 1.5% Nickel, 0.2% Molybdenum, balance Iron | Ideal for structural components requiring high strength and durability | ASME SA240, NACE MR0175 |
Specifications Table
| Material | Duplex 2101 |
|---|---|
| Grades | UNS S32101 |
| Standard | ASTM A240/A240M |
| Size Range | 10 mm to 100 mm diameter |
| Length | Up to 6 meters |
| Form | Round Bar |
Available Grades Table
| Product | Composition | Applications |
|---|---|---|
| Duplex 2101 Round Bar | UNS S32101 - 22% Cr, 5.5% Ni, 0.15% N | Used in chemical processing, oil & gas, and marine environments. |
| Duplex 2101 Round Bar | EN 1.4162 - 22% Cr, 5.5% Ni, 0.15% N | Suitable for applications requiring high corrosion resistance. |
| Duplex 2101 Round Bar | ASTM A240 - 22% Cr, 5.5% Ni, 0.15% N | Commonly used in the fabrication of pipelines and pressure vessels. |
| Duplex 2101 Round Bar | SAE J405 - 22% Cr, 5.5% Ni, 0.15% N | Ideal for structural applications in harsh environments. |
| Duplex 2101 Round Bar | ISO 9445 - 22% Cr, 5.5% Ni, 0.15% N | Used in the construction of bridges and offshore platforms. |
Available Sizes of Duplex 2101 Round Bar (MM)
| Size (MM) | Size (MM) |
|---|---|
| 10 | 12 |
| 14 | 16 |
| 18 | 20 |
| 22 | 25 |
| 28 | 30 |
| 32 | 35 |
| 40 | 45 |
| 50 | 55 |
| 60 | 70 |
| 80 | 90 |
Chemical Properties of Duplex 2101 Round Bar
| Element | Composition (%) |
|---|---|
| Iron (Fe) | 61.0 - 65.0 |
| Chromium (Cr) | 18.0 - 20.0 |
| Nickel (Ni) | 4.5 - 6.5 |
| Molybdenum (Mo) | 0.5 - 1.5 |
| Manganese (Mn) | 2.0 - 3.0 |
| Silicon (Si) | 0.5 - 1.0 |
| Carbon (C) | 0.03 max |
| Sulfur (S) | 0.02 max |
Mechanical Properties of Duplex 2101 Round Bar
| Property | Value |
|---|---|
| Tensile Strength (MPa) | 600 - 800 |
| Yield Strength (MPa) | 450 - 600 |
| Elongation (%) | 25 |
| Hardness (HB) | 250 - 300 |
| Impact Strength (J) | 50 |
Duplex 2101 Round Bar – Physical & Thermal Properties
Density of Duplex 2101 Round Bar
| Property | Metric | Imperial |
|---|---|---|
| Density | 7.1 g/cm³ | 0.256 lb/in³ |
Melting Point of Duplex 2101 Round Bar
| Property | Metric | Imperial |
|---|---|---|
| Melting Point | 1400 - 1450 °C | 2552 - 2642 °F |
Specific Heat of Duplex 2101 Round Bar
| Specific Heat of Duplex 2101 Round Bar | ||
|---|---|---|
| Specific Heat (J/kg·K) | Temperature Range (°C) | Condition |
| 500 | 20 - 100 | Room Temperature |
| 600 | 100 - 300 | Heating |
| 700 | 300 - 600 | High Temperature |
Electrical Resistivity of Duplex 2101 Round Bar
| Electrical Resistivity | ||
|---|---|---|
| Value (µΩ·m) | Temperature (°C) | Treatment or Condition |
| 0.72 | 20 | As-rolled |
| 0.75 | 100 | |
| 0.78 | 200 | |
| 0.80 | 300 | |
| 0.82 | 400 | |
Equivalent of Duplex 2101 Round Bar
| Standard | Werkstoff Nr. | UNS |
|---|---|---|
| EN 1.4162 | Duplex 2101 | S32101 |
| AISI 2205 | Duplex 2205 | S32205 |
Manufacturing Process & Heat Treatment of Duplex 2101 Round Bar
Annealing
The annealing process for Duplex 2101 round bars involves heating the material to a temperature range of 1000-1100°C, followed by a controlled cooling process. This treatment helps to relieve internal stresses and improve ductility, ensuring the material is more workable in subsequent manufacturing processes.
Forging
Forging of Duplex 2101 round bars is performed at elevated temperatures between 900-1200°C. This process enhances the mechanical properties of the steel, allowing for the alignment of the grain structure and improving strength and toughness. The forged bars are then allowed to cool gradually to room temperature to minimize residual stresses.
Hardening & Tempering
| Process | Temperature Range (°C) | Quenching Medium | Purpose |
|---|---|---|---|
| Hardening | 1020-1100 | Oil | Increase hardness and strength |
| Tempering | 300-600 | Air | Reduce brittleness and improve toughness |
| Stress Relieving | 600-800 | Air | Reduce residual stresses from manufacturing |
The combination of these heat treatment processes ensures that Duplex 2101 round bars achieve the desired mechanical properties for various industrial applications, providing a balance of strength and ductility.
Various Types
Duplex 2101 Round Bar - Standard
- Diameter: 10mm - 50mm
- Condition: Hot Rolled
- Applications: Construction, Fabrication
Duplex 2101 Round Bar - Enhanced
- Diameter: 20mm - 100mm
- Condition: Cold Drawn
- Applications: Oil & Gas, Marine
Duplex 2101 Round Bar - Premium
- Diameter: 25mm - 200mm
- Condition: Solution Treated
- Applications: Chemical Processing, Aerospace
Duplex 2101 Round Bar - Custom
- Diameter: Custom Sizes Available
- Condition: As Required
- Applications: Tailored Solutions for Various Industries
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 2101 Round Bar
| Material Grade | Thickness | Price (USD / Kg) | Price (INR / Kg) |
|---|---|---|---|
| Duplex 2101 | 3 mm | $2.50 – $3.00 | ₹207 – ₹248 |
| Duplex 2101 | 6 mm | $2.40 – $2.90 | ₹199 – ₹241 |
| Duplex 2101 | 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 2101 Round Bar.
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