Duplex 2304 Sheet manufacturer
Duplex 2304 Sheet manufacturer plays a crucial role in supplying high-performance stainless steel sheets that combine the best features of austenitic and ferritic grades. These sheets are known for their excellent corrosion resistance, superior strength, and enhanced durability, making them ideal for demanding industrial environments. Typically fabricated from a balanced alloy composition, Duplex 2304 offers a cost-effective solution for applications requiring resistance to stress corrosion cracking and high mechanical strength.
The material is characterized by a duplex microstructure, which provides improved toughness and resistance to pitting and crevice corrosion, especially in chloride-rich environments. Sheets produced are often available in various thicknesses and finishes, ensuring adaptability for different fabrication processes such as welding, forming, and machining. This versatility makes the product suitable for use in chemical processing, marine engineering, and oil and gas industries.
Manufacturers emphasize precision in producing these duplex stainless steel sheets, adhering to international standards such as ASTM A240 and EN 10088. This compliance guarantees that the sheets meet stringent mechanical and chemical property requirements, including tensile strength, yield strength, and impact resistance. The controlled manufacturing process ensures consistent quality, which is critical for industrial buyers who rely on material performance for long-term operational efficiency.
Applications for these sheets extend to heat exchangers, pressure vessels, storage tanks, and structural components exposed to aggressive environments. Their excellent weldability and formability enable custom fabrication tailored to specific project needs. Moreover, the enhanced corrosion resistance reduces maintenance costs and downtime, offering a sustainable solution for industries focused on durability and safety.
Export readiness is a key consideration for suppliers, with many manufacturers equipped to handle international shipping and documentation requirements. This includes certifications like ISO 9001 and material test reports (MTRs) to facilitate smooth customs clearance and quality assurance for global clients. Reliable logistics and packaging ensure that the sheets arrive in optimal condition, ready for immediate integration into industrial applications worldwide.
Lead Time
2–7 weeks depending on size
Delivery Terms
FOB, CIF, DDP
Shipping Modes
Sea / Air / Express
Why Duplex 2304 Sheet manufacturer 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 2304 Sheet manufacturer
- 2. How to Choose the Right Manufacturer
- 3.Comparison of Duplex 2304 Sheet 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 2304 Sheet 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 2304 Sheet 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 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 2304 Sheet
- ✔ Excellent corrosion resistance in various environments
- ✔ High strength-to-weight ratio, providing durability
- ✔ Good weldability suitable for various fabrication processes
- ✔ Cost-effective alternative to higher alloyed duplex steels
- ✔ Enhanced resistance to pitting and crevice corrosion
- ✔ Available in a variety of thicknesses and finishes
Technical Overview of Duplex 2304 Sheet
| Product | Composition | Usage | Standards |
|---|---|---|---|
| Duplex 2304 Sheet | Fe, 22% Cr, 4.5% Ni, 0.2% Mo, 0.03% C, 0.5% N | Used in chemical processing, marine environments, and construction | ASTM A240, ASME SA240 |
| Duplex 2304 Sheet | Fe, 22% Cr, 4.5% Ni, 0.2% Mo, 0.03% C, 0.5% N | Ideal for applications requiring high strength and corrosion resistance | EN 10088-1, ISO 9445 |
| Duplex 2304 Sheet | Fe, 22% Cr, 4.5% Ni, 0.2% Mo, 0.03% C, 0.5% N | Commonly used in the oil and gas industry and heat exchangers | API 650, ASTM A276 |
Specifications Table
| Material | Duplex 2304 |
|---|---|
| Grades | UNS S32304 |
| Standard | AISI/ASTM |
| Size Range | 0.5 mm to 25 mm thickness |
| Length | Up to 3000 mm |
| Form | Sheet |
Available Grades Table
| Product | Composition | Applications |
|---|---|---|
| Duplex 2304 Sheet | Fe, 18% Cr, 4.5% Ni, 0.2% N | Food processing, chemical tank construction |
| Duplex 2304 Plate | Fe, 18% Cr, 4.5% Ni, 0.2% N | Oil and gas industry, marine applications |
| Duplex 2304 Coil | Fe, 18% Cr, 4.5% Ni, 0.2% N | Structural components, heat exchangers |
| Duplex 2304 Foil | Fe, 18% Cr, 4.5% Ni, 0.2% N | Electrical applications, automotive industry |
| Duplex 2304 Strip | Fe, 18% Cr, 4.5% Ni, 0.2% N | Building and construction, storage tanks |
Available Sizes of Duplex 2304 Sheet (MM)
| Size (MM) | Size (MM) |
|---|---|
| 1000 x 2000 | 1500 x 3000 |
| 1200 x 2400 | 2000 x 4000 |
| 1000 x 3000 | 1500 x 1500 |
| 1250 x 2500 | 2000 x 2000 |
| 1000 x 1500 | 3000 x 6000 |
| 1500 x 2000 | 1200 x 3000 |
| 2000 x 3000 | 1500 x 2500 |
| 1250 x 1250 | 2500 x 5000 |
| 1000 x 1000 | 3000 x 3000 |
| 1500 x 1000 | 2000 x 1500 |
Chemical Properties of Duplex 2304
| Element | Composition (%) |
|---|---|
| Chromium (Cr) | 18.0 - 20.0 |
| Nickel (Ni) | 4.5 - 6.5 |
| Molybdenum (Mo) | 0.3 - 1.0 |
| Manganese (Mn) | 2.0 |
| Silicon (Si) | 1.0 |
| Carbon (C) | 0.03 |
| Phosphorus (P) | 0.03 |
| Sulfur (S) | 0.01 |
Mechanical Properties of Duplex 2304
| Property | Value |
|---|---|
| Tensile Strength (MPa) | 450 - 650 |
| Yield Strength (MPa) | 320 - 450 |
| Elongation (%) | 25 |
| Hardness (HB) | 200 - 250 |
| Modulus of Elasticity (GPa) | 190 - 210 |
Duplex 2304 – Physical & Thermal Properties
Density of Duplex 2304
| Property | Metric | Imperial |
|---|---|---|
| Density | 7.1 g/cm³ | 0.256 lb/in³ |
Melting Point of Duplex 2304
| Property | Metric | Imperial |
|---|---|---|
| Melting Point | 1400-1450 °C | 2552-2642 °F |
Specific Heat of Duplex 2304
| Specific Heat of Duplex 2304 | ||
|---|---|---|
| Specific Heat (J/kg·K) | Temperature Range (°C) | Condition |
| 500 | 20-100 | Room Temperature |
| 600 | 100-500 | Heating |
| 700 | 500-800 | High Temperature |
Electrical Resistivity of Duplex 2304
| Electrical Resistivity | ||
|---|---|---|
| Value (µΩ·m) | Temperature (°C) | Treatment or Condition |
| 0.73 | 20 | As-rolled |
| 0.75 | 100 | |
| 0.78 | 200 | |
| 0.80 | 300 | |
| 0.82 | 400 | |
Equivalent of Duplex 2304 Sheet
| Standard | Werkstoff Nr. | UNS |
|---|---|---|
| ASTM A240 | 1.4362 | S32304 |
| EN 10088-2 | 1.4362 | S32304 |
Manufacturing Process & Heat Treatment of Duplex 2304
Annealing
The annealing process for Duplex 2304 involves heating the material to a temperature between 1000°C and 1100°C, followed by controlled cooling. This treatment reduces residual stresses, enhances ductility, and improves the overall microstructure, making it suitable for further processing.
Forging
Forging of Duplex 2304 is performed at temperatures ranging from 1100°C to 1200°C. This process enhances the strength and toughness of the material by refining the grain structure and ensuring uniformity. The forged sheets are then subjected to cooling to ensure optimal mechanical properties.
Hardening & Tempering
| Process | Temperature Range (°C) | Quenching Medium | Purpose |
|---|---|---|---|
| Hardening | 1020 - 1100 | Water | To increase hardness and strength by transforming the microstructure. |
| Tempering | 600 - 800 | Air | To reduce brittleness and improve toughness after hardening. |
| Stabilization | 800 - 900 | Air | To enhance corrosion resistance and stabilize the microstructure. |
The combination of these processes ensures that Duplex 2304 sheets exhibit excellent mechanical properties, corrosion resistance, and suitability for various industrial applications.
Various Types
Duplex 2304 Sheet - Standard
- Thickness: 0.5 mm - 5 mm
- Condition: Hot Rolled / Cold Rolled
- Applications: Chemical Process, Food Processing, Marine Applications
Duplex 2304 Sheet - Polished
- Thickness: 1 mm - 10 mm
- Condition: Polished
- Applications: Architectural Applications, Kitchen Equipment, Storage Tanks
Duplex 2304 Sheet - Pickled
- Thickness: 0.8 mm - 12 mm
- Condition: Pickled and Oiled
- Applications: Oil and Gas Industry, Pulp and Paper Industry, Wastewater Treatment
Duplex 2304 Sheet - Custom Sizes
- Thickness: Custom
- Condition: Custom
- Applications: Tailored for Specific Projects, Custom Fabrication
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 2304 Sheet
| Material Grade | Thickness | Price (USD / Kg) | Price (INR / Kg) |
|---|---|---|---|
| Duplex 2304 | 3 mm | $2.50 – $2.70 | ₹205 – ₹220 |
| Duplex 2304 | 6 mm | $2.40 – $2.60 | ₹200 – ₹215 |
| Duplex 2304 | 10 mm | $2.30 – $2.50 | ₹195 – ₹210 |
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 2304 Sheet.
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.
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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