Super Duplex 32750 Flanges
Super Duplex 32750 Flanges are engineered from high-performance stainless steel alloys known for their exceptional strength and corrosion resistance. These flanges are fabricated using Super Duplex 32750 material, which combines a balanced microstructure of austenite and ferrite phases, providing superior mechanical properties and enhanced durability in harsh environments. Such characteristics make them ideal for critical piping connections in industries requiring robust and reliable components.
Manufactured as precision-forged or welded flanges, these components come in various types including slip-on, weld neck, blind, and threaded flanges, each designed to meet specific installation and operational requirements. The flanges typically conform to international standards such as ASTM A182 and ASME B16.5, ensuring compatibility and interchangeability in global industrial applications. Their high tensile strength and resistance to chloride stress corrosion cracking make them suitable for high-pressure and high-temperature conditions.
These flanges are predominantly utilized in sectors such as oil and gas, petrochemical, offshore drilling, and chemical processing plants where exposure to aggressive media is frequent. Their ability to withstand pitting and crevice corrosion ensures longevity and reduces maintenance costs in seawater and acidic environments. Additionally, their superior fatigue resistance supports the structural integrity of piping systems subjected to cyclic loading.
Export-ready Super Duplex 32750 flanges undergo stringent quality control measures including dimensional inspections, non-destructive testing, and chemical analysis to meet the rigorous demands of international markets. Suppliers often provide mill test certificates, third-party inspection reports, and compliance documentation to facilitate smooth customs clearance and assure buyers of product authenticity and performance reliability.
Industrial buyers seeking these flanges benefit from a product that delivers high performance under extreme conditions, backed by global standards and certifications. The versatility and durability of these components make them a strategic investment for enhancing the safety and efficiency of critical infrastructure across diverse industrial applications worldwide.
Lead Time
2–7 weeks depending on size
Delivery Terms
FOB, CIF, DDP
Shipping Modes
Sea / Air / Express
Why Super Duplex 32750 Flanges 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 Super Duplex 32750 Flanges
- 2. How to Choose the Right Manufacturer
- 3.Comparison of Super Duplex 32750 Flanges
- 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 Super Duplex 32750 Flanges
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 Super Duplex 32750 Flanges
| 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 Super Duplex 32750 Flanges
- ✔ Exceptional corrosion resistance in aggressive environments
- ✔ High mechanical strength and durability
- ✔ Excellent weldability and formability
- ✔ Suitable for high-pressure applications
- ✔ Resistant to pitting and crevice corrosion
- ✔ Versatile for various industrial applications
Technical Overview of Super Duplex 32750 Flanges
| Product | Composition | Usage | Standards |
|---|---|---|---|
| Super Duplex 32750 Flanges | 25% Chromium, 7% Nickel, 3.6% Molybdenum, 0.5% Nitrogen | Used in high-pressure and high-temperature applications, particularly in oil and gas industries. | ASTM A182, ASTM A240, ASME SA182, ASME SA240 |
| Super Duplex 32750 Flanges | Excellent resistance to pitting, crevice corrosion, and stress corrosion cracking. | Ideal for seawater applications, chemical processing, and power generation. | ISO 15156, NACE MR0175 |
| Super Duplex 32750 Flanges | High strength and toughness, with a yield strength of approximately 80 ksi (550 MPa). | Suitable for applications requiring robust mechanical properties and corrosion resistance. | EN 10204 3.1, EN 10088-3 |
Specifications Table
| Material | Super Duplex Stainless Steel |
|---|---|
| Grades | UNS S32750 |
| Standard | ASTM A182 / ASME SA182 |
| Size Range | 1/2" to 24" |
| Length | Custom lengths available |
| Form | Flanges (Slip-on, Blind, Weld Neck, Threaded) |
Available Grades Table
| Product | Composition | Applications |
|---|---|---|
| Super Duplex 32750 | Fe, Cr (24-26%), Ni (6-8%), Mo (3-5%), N (0.14-0.20%), C (max 0.03%) | Oil and gas, chemical processing, marine applications |
| Super Duplex 32760 | Fe, Cr (25-27%), Ni (6-8%), Mo (4-5%), N (0.17-0.25%), C (max 0.03%) | Desalination plants, offshore platforms, pulp and paper industry |
| Super Duplex S32750 | Fe, Cr (25%), Ni (7%), Mo (4%), N (0.2%), C (max 0.03%) | Heat exchangers, pressure vessels, piping systems |
| Super Duplex S32760 | Fe, Cr (26%), Ni (7%), Mo (5%), N (0.2%), C (max 0.03%) | Pharmaceuticals, food processing, high-pressure applications |
| Super Duplex 2507 | Fe, Cr (25%), Ni (7%), Mo (4%), N (0.27%), C (max 0.03%) | Marine environments, waste treatment, oil field applications |
Available Sizes of Super Duplex 32750 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 | 750 |
Chemical Properties of Super Duplex 32750 Flanges
| Element | Composition (%) |
|---|---|
| Iron (Fe) | Fe Balance |
| Chromium (Cr) | 24.0 - 26.0 |
| Nickel (Ni) | 6.0 - 8.0 |
| Molybdenum (Mo) | 3.0 - 5.0 |
| Tungsten (W) | 0.5 - 1.0 |
| Nitrogen (N) | 0.24 - 0.30 |
| Manganese (Mn) | 1.0 max |
| Silicon (Si) | 1.0 max |
Mechanical Properties of Super Duplex 32750 Flanges
| Property | Value |
|---|---|
| Tensile Strength (MPa) | 800 - 1000 |
| Yield Strength (MPa) | 600 - 800 |
| Elongation (%) | 25 |
| Hardness (HB) | 300 - 350 |
| Impact Toughness (J at -40°C) | ≥ 40 |
Super Duplex 32750 Flanges – Physical & Thermal Properties
Density of Super Duplex 32750 Flanges
| Property | Metric | Imperial |
|---|---|---|
| Density | 7.8 g/cm³ | 0.282 lb/in³ |
Melting Point of Super Duplex 32750 Flanges
| Property | Metric | Imperial |
|---|---|---|
| Melting Point | 1325 - 1375 °C | 2417 - 2507 °F |
Specific Heat of Super Duplex 32750 Flanges
| Specific Heat of Super Duplex 32750 Flanges | ||
|---|---|---|
| Specific Heat (J/kg·K) | Temperature Range (°C) | Condition |
| 500 | 20 - 100 | Room Temperature |
| 600 | 100 - 400 | Heating |
| 700 | 400 - 800 | High Temperature |
Electrical Resistivity of Super Duplex 32750 Flanges
| Electrical Resistivity | ||
|---|---|---|
| Value (µΩ·m) | Temperature (°C) | Treatment or Condition |
| 0.70 | 20 | As-Received |
| 0.75 | 100 | |
| 0.80 | 200 | |
| 0.85 | 300 | |
| 0.90 | 400 | |
Equivalent of Super Duplex 32750 Flanges
| Standard | Werkstoff Nr. | UNS |
|---|---|---|
| ASTM A182 | 1.4410 | S32750 |
| ASTM A790 | 1.4410 | S32750 |
Manufacturing Process & Heat Treatment of Super Duplex 32750 Flanges
Annealing
Annealing of Super Duplex 32750 flanges involves heating the material to a temperature range of 1020-1100°C, followed by air cooling. This process helps in relieving internal stresses and improving ductility, ensuring that the material can withstand further processing and service conditions.
Forging
The forging process for Super Duplex 32750 flanges includes hot working the steel at temperatures between 900-1100°C. This method enhances the mechanical properties of the flanges by refining the grain structure and achieving a uniform distribution of alloying elements, which is critical for performance in high-stress applications.
Hardening & Tempering
| Process | Temperature Range (°C) | Quenching Medium | Purpose |
|---|---|---|---|
| Hardening | 1020-1100 | Oil | To increase hardness and strength by transforming the microstructure to martensite. |
| Tempering | 600-800 | Air | To reduce brittleness while maintaining hardness, optimizing toughness. |
| Stress Relieving | 600-700 | Air | To relieve residual stresses from welding and machining processes. |
The combination of these processes ensures that Super Duplex 32750 flanges possess excellent mechanical properties and corrosion resistance, making them suitable for demanding applications in the oil and gas, chemical, and marine industries.
Various Types
Super Duplex 32750 Blind Flange
- Dimensions: 1" to 24" (custom sizes available)
- Condition: Hot Finished / Cold Drawn
- Applications: Oil & Gas, Petrochemical, Marine
Super Duplex 32750 Slip-On Flange
- Dimensions: 1" to 30" (custom sizes available)
- Condition: Hot Finished / Cold Drawn
- Applications: Chemical Processing, Power Generation
Super Duplex 32750 Weld Neck Flange
- Dimensions: 2" to 36" (custom sizes available)
- Condition: Hot Finished / Cold Drawn
- Applications: Shipbuilding, Offshore Oil Platforms
Super Duplex 32750 Socket Weld Flange
- Dimensions: 1/2" to 4" (custom sizes available)
- Condition: Hot Finished / Cold Drawn
- Applications: High Pressure Applications, Water Treatment
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 Super Duplex 32750 Flanges
| Material Grade | Thickness | Price (USD / Kg) | Price (INR / Kg) |
|---|---|---|---|
| Super Duplex 32750 | 3 mm | $5.50 – $6.00 | ₹450 – ₹500 |
| Super Duplex 32750 | 6 mm | $5.20 – $5.70 | ₹420 – ₹480 |
| Super Duplex 32750 | 10 mm | $4.80 – $5.30 | ₹390 – ₹450 |
Note: Prices are indicative and may vary based on size, quantity, raw material cost, and delivery location. Contact us for the latest quotation for Super Duplex 32750 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
- Super Duplex 2507 Flanges
- Duplex Stainless Steel Flanges
- Super Duplex 32760 Pipe Fittings
- Stainless Steel Flange Standards
- Super Duplex 32750 Properties
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