Duplex 2101 Flanges manufacturer
Duplex 2101 Flanges manufacturer specializes in producing high-quality flanges made from Duplex 2101 stainless steel, a low-nickel, lean duplex alloy known for its excellent corrosion resistance and strength. These flanges are critical components used to connect pipes, valves, and other equipment in industrial piping systems. Crafted to meet stringent industry standards, the product range includes weld neck, slip-on, blind, and threaded flanges designed for durability and precision fit.
The material composition of Duplex 2101 provides a balanced microstructure of austenite and ferrite, enhancing its mechanical properties and resistance to stress corrosion cracking. This makes it ideal for applications in oil and gas, chemical processing, and marine environments where exposure to chlorides and harsh chemicals is common. The flanges are engineered to withstand high pressure and temperature conditions, ensuring reliable performance in demanding operational settings.
Manufactured with advanced forging and machining techniques, these flanges conform to international standards such as ASTM A182 and ASME B16.5, guaranteeing compatibility and safety in global markets. The dimensional accuracy and surface finish of the products facilitate seamless integration into existing pipeline systems, reducing installation time and maintenance costs. Customization options are also available to meet specific project requirements.
Understanding the needs of industrial buyers, the supplier ensures that the flanges undergo rigorous quality control tests including ultrasonic testing, positive material identification, and hydrostatic pressure testing. This commitment to quality assurance supports long-term durability and performance, minimizing downtime and operational risks. The packaging and documentation are tailored for export, complying with international shipping regulations and ensuring safe delivery worldwide.
With a strong focus on export readiness, the manufacturer offers comprehensive support including certification, traceability, and timely delivery schedules. This enables industries across various regions to source reliable Duplex 2101 flanges that meet both technical and logistical demands. Partnering with a reputable supplier ensures access to premium components that uphold safety and efficiency in critical industrial applications.
Lead Time
2ā7 weeks depending on size
Delivery Terms
FOB, CIF, DDP
Shipping Modes
Sea / Air / Express
Why Duplex 2101 Flanges manufacturer Are Preferred by Global Buyers
- ā Factory Pricing: Direct manufacturer rates with bulk stock
- ā Certified Quality: ISO & 3rd-party tested, EN 10204 certified
- ā Export-Ready: Sea-worthy packaging for on-time delivery
- ā Fast RFQs: Quick quotes for custom sizes & quantities
- ā 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: 550 MT / Month
- Export Experience: 10+ Years
- Countries Served: 50+
- Annual Export Volume: 5,530 MT
Table of Contents
- 1. What is Duplex 2101 Flanges manufacturer
- 2. How to Choose the Right Manufacturer
- 3.Comparison of Duplex 2101 Flanges manufacturer
- 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 Flanges manufacturer
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 Flanges manufacturer
| 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 15ā20% 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 Flanges
- ā Excellent corrosion resistance in various environments
- ā High strength-to-weight ratio, ideal for structural applications
- ā Cost-effective alternative to higher-grade duplex and super duplex stainless steels
- ā Superior weldability and formability for versatile manufacturing
- ā Good resistance to stress corrosion cracking, enhancing longevity
- ā Suitable for a wide range of industries including oil and gas, chemical processing, and marine applications
Technical Overview of Duplex 2101 Flanges
| Product | Composition | Usage | Standards |
|---|---|---|---|
| Duplex 2101 Flanges | 22% Cr, 5% Ni, 3% Mo, 0.2% N | Used in piping systems for oil and gas, chemical processing, and marine applications | ASTM A240, ASTM A182, ASME SA240 |
| Duplex 2101 Flanges | 22% Cr, 5% Ni, 3% Mo, 0.2% N | Ideal for environments with high chloride exposure and elevated temperatures | ISO 15156, NACE MR0175 |
| Duplex 2101 Flanges | 22% Cr, 5% Ni, 3% Mo, 0.2% N | Commonly utilized in the fabrication of pressure vessels and heat exchangers | BS 316L, EN 10088 |
Specifications Table
| Material | Duplex Stainless Steel 2101 |
|---|---|
| Grades | UNS S32101 |
| Standard | ASTM A182/A240 |
| Size Range | 1" to 24" |
| Length | Custom Lengths Available |
| Form | Blind, Slip-on, Weld Neck, Threaded |
Available Grades Table
| Product | Composition | Applications |
|---|---|---|
| Duplex 2101 Flange | Fe, 22% Cr, 5% Ni, 3% Mo | Oil and gas, chemical processing |
| Duplex 2101 Flange | Fe, 21% Cr, 1.5% Ni, 4% Mo | Pulp and paper, marine applications |
| Duplex 2101 Flange | Fe, 23% Cr, 6% Ni, 2% Mo | Water treatment, heat exchangers |
| Duplex 2101 Flange | Fe, 24% Cr, 4% Ni, 3% Mo | Construction, offshore platforms |
| Duplex 2101 Flange | Fe, 22% Cr, 5% Ni, 2% Mo | Pharmaceutical equipment, food processing |
Available Sizes of Duplex 2101 Flanges (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 2101
| Element | Composition (%) |
|---|---|
| Chromium (Cr) | 20.0 - 22.0 |
| Nickel (Ni) | 4.5 - 6.5 |
| Molybdenum (Mo) | 0.3 - 0.8 |
| Manganese (Mn) | 5.0 - 7.0 |
| Silicon (Si) | 0.5 max |
| Carbon (C) | 0.03 max |
| Phosphorus (P) | 0.03 max |
| Sulfur (S) | 0.01 max |
Mechanical Properties of Duplex 2101
| Property | Value |
|---|---|
| Tensile Strength | 620 MPa |
| Yield Strength | 450 MPa |
| Elongation | 25% |
| Hardness | 230 HB |
| Charpy Impact Strength | 50 J at -40Ā°C |
Duplex 2101 Flanges ā Physical & Thermal Properties
Density of Duplex 2101 Flanges
| Property | Metric | Imperial |
|---|---|---|
| Density | 7.8 g/cmĀ³ | 0.282 lb/inĀ³ |
Melting Point of Duplex 2101 Flanges
| Property | Metric | Imperial |
|---|---|---|
| Melting Point | 1400 - 1450 Ā°C | 2552 - 2642 Ā°F |
Specific Heat of Duplex 2101 Flanges
| Specific Heat of Duplex 2101 Flanges | ||
|---|---|---|
| Specific Heat (J/kgĀ·K) | Temperature Range (Ā°C) | Condition |
| 500 | 20 - 100 | Room Temperature |
| 600 | 100 - 400 | High Temperature |
| 700 | 400 - 800 | Very High Temperature |
Electrical Resistivity of Duplex 2101 Flanges
| Electrical Resistivity | ||
|---|---|---|
| Value (ĀµĪ©Ā·m) | Temperature (Ā°C) | Treatment or Condition |
| 0.80 | 20 | As-rolled |
| 0.82 | 100 | |
| 0.84 | 200 | |
| 0.86 | 300 | |
| 0.88 | 400 | |
Equivalent of Duplex 2101
| Standard | Werkstoff Nr. | UNS |
|---|---|---|
| EN 1.4162 | 1.4162 | S32101 |
| AISI 2101 | ā | S32101 |
Manufacturing Process & Heat Treatment of Duplex 2101 Flanges
Annealing
The annealing process for Duplex 2101 flanges involves heating the material to a temperature of approximately 1000-1100Ā°C, followed by a controlled cooling process. This treatment helps to relieve internal stresses, improve ductility, and enhance the overall microstructure of the alloy, making it more suitable for further processing and application.
Forging
Forging of Duplex 2101 flanges is conducted at elevated temperatures ranging from 1100 to 1250Ā°C. This process involves shaping the metal through compressive forces, which results in improved mechanical properties due to the refinement of the grain structure. The forged flanges exhibit enhanced strength and toughness, making them ideal for demanding applications.
Hardening & Tempering
| Process | Temperature Range (Ā°C) | Quenching Medium | Purpose |
|---|---|---|---|
| Hardening | 1000-1100 | Water or Oil | Increase hardness and strength |
| Tempering | 400-600 | Air | Reduce brittleness and improve toughness |
| Stress Relieving | 600-700 | Air | Eliminate residual stresses from the forging process |
The combination of these manufacturing and heat treatment processes ensures that Duplex 2101 flanges possess the desired mechanical properties for high-performance applications, providing reliability and durability in various industrial environments.
Various Types
Duplex 2101 Flange Type A
- Dimensions: 1" to 24"
- Condition: Hot Rolled
- Applications: Oil and Gas, Chemical Processing
Duplex 2101 Flange Type B
- Dimensions: 1" to 36"
- Condition: Cold Worked
- Applications: Marine, Construction
Duplex 2101 Flange Type C
- Dimensions: 1" to 12"
- Condition: Pickled and Passivated
- Applications: Pulp and Paper, Water Treatment
Duplex 2101 Flange Type D
- Dimensions: 2" to 20"
- Condition: Annealed
- Applications: HVAC, Pharmaceutical
Applications & Uses
- Oil & Gas Industry
- Petrochemical Plants
- Water Treatment Plants
- Pharmaceutical Industry
- Food & Beverage Industry
- Automobile Industry
Industries We Serve
Our alloys are widely used across:
- Steel Plants
- Foundries & Casting Units
- Automobile Industry
- Shipbuilding & Marine
- Oil & Gas
- Engineering Components
- Heavy Industrial Machinery
Latest Price List of Duplex 2101 Flanges
| Material Grade | Thickness | Price (USD / Kg) | Price (INR / Kg) |
|---|---|---|---|
| Duplex 2101 | 3 mm | $4.50 ā $5.00 | ā¹370 ā ā¹410 |
| Duplex 2101 | 6 mm | $4.80 ā $5.30 | ā¹400 ā ā¹440 |
| Duplex 2101 | 10 mm | $5.10 ā $5.60 | ā¹420 ā ā¹460 |
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 Flanges.
MOQ & Payment Terms
Minimum Order Quantity: 25ā100 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
Cities We Suppllied In India
We exported to 50+ countries worldwide.
Our Certifications
We are a certified manufacturer and exporter, committed to strict quality control and international compliance standards. Below are our key certifications.
GST Certificate
ISO 9001:2015
ISO 1002:2018
Udyam MSME Registration
Quality Inspection & Testing
At Ragnar Metals and Tubes, all products are checked through strict quality inspection and testing to meet international standards such as ASTM, ASME, EN, and DIN. This ensures consistent quality, accurate dimensions, and full material traceability.
- ā Chemical composition testing
- ā Mechanical tests such as tensile and hardness
- ā Dimensional inspection as per standard tolerances
- ā PMI, ultrasonic, and visual inspection (if required)
- ā EN 10204 3.1 / 3.2 test certificates
- ā Third-party inspection by SGS, TUV, BV, or Lloydās
Our quality systems support reliable supply for oil & gas, petrochemical, power, marine, and heavy engineering projects.
Our Products Types
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Frequently Asked Questions
About Ragnar Metals and Tubes
- ā Decades of experience in stainless steel, carbon steel, and alloy steel manufacturing
- ā ISO 9001:2015 certified company ensuring strict quality control standards
- ā Specialized in cold drawn pipes and tubes processing
- ā State-of-the-art manufacturing facilities with modern machinery
- ā Precision-engineered products with consistent quality and reliability
- ā Customized steel solutions as per client drawings and specifications
- ā Compliance with international industry standards
- ā Trusted supplier for critical industrial applications worldwide