Duplex Sheet exporter in Singapore
Duplex Sheet exporter in Singapore plays a crucial role in supplying high-quality paperboard materials to various industrial sectors. These sheets are composed of two layers of paper, typically featuring a coated surface on one side and a natural kraft backing on the other, offering excellent stiffness and printability. Known for their durability and smooth finish, duplex boards are widely used in packaging applications where both aesthetic appeal and structural integrity are essential.
Manufactured to meet stringent international standards, the duplex sheets available for export from Singapore come in various thicknesses and grammages to suit diverse packaging needs. Common specifications include grammage ranging from 200 to 400 gsm, with customizable sheet sizes to accommodate different production processes. The coated side provides an optimal surface for high-quality printing, making these boards ideal for retail packaging, cartons, and promotional materials.
Industries such as food and beverage, pharmaceuticals, and consumer electronics rely heavily on these paperboards for protective yet visually appealing packaging solutions. The duplex sheet’s strength ensures safe transportation and handling, while its printable surface supports vibrant graphics and branding. Additionally, its eco-friendly composition aligns with the growing demand for sustainable packaging options, enhancing the product’s appeal in global markets.
Singapore’s strategic location and well-established logistics infrastructure facilitate efficient export operations, ensuring timely delivery and compliance with international shipping regulations. Exporters offer tailored packaging and documentation services to streamline customs clearance and minimize transit risks. This readiness to serve global industrial buyers makes the duplex sheet a reliable choice for businesses seeking consistent quality and supply chain efficiency.
Lead Time
2–7 weeks depending on size
Delivery Terms
FOB, CIF, DDP
Shipping Modes
Sea / Air / Express
Why Duplex Sheet exporter in Singapore 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 Sheet exporter in Singapore
- 2. How to Choose the Right Manufacturer
- 3.Comparison of Duplex Sheet exporter in Singapore
- 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 Sheet exporter in Singapore
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 Sheet exporter in Singapore
| 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 Sheets
- ✔ High corrosion resistance for durability in harsh environments
- ✔ Excellent mechanical properties, combining strength and ductility
- ✔ Cost-effective alternative to traditional stainless steel options
- ✔ Wide range of thicknesses and dimensions available
- ✔ Superior weldability for versatile applications
- ✔ Compliance with international standards and certifications
Technical Overview of Duplex Sheet
| Product | Composition | Usage | Standards |
|---|---|---|---|
| Duplex Stainless Steel Sheet | 22% Cr, 5% Ni, 3% Mo | Oil and gas, chemical processing, marine applications | ASTM A240, ASME SA240 |
| Duplex 2205 Sheet | 22% Cr, 5% Ni, 3% Mo, 0.17% N | Structural components, heat exchangers | ASTM A240, EN 10088-3 |
| Duplex 2507 Sheet | 25% Cr, 7% Ni, 4% Mo | Seawater applications, petrochemical industry | ASTM A240, NACE MR0175 |
Specifications Table
| Material | Duplex Stainless Steel |
|---|---|
| Grades | 2205, 2507 |
| Standard | ASTM A240, ASME SA240 |
| Size Range | 0.5 mm to 50 mm thickness |
| Length | Up to 6000 mm |
| Form | Sheet, Plate |
Available Grades Table
| Product | Composition | Applications |
|---|---|---|
| Duplex 2205 | Fe, 22% Cr, 5% Ni, 3% Mo | Oil and gas, chemical processing, marine applications |
| Duplex 2507 | Fe, 25% Cr, 7% Ni, 4% Mo | Desalination plants, offshore platforms, pulp and paper |
| Duplex 31803 | Fe, 22% Cr, 5.6% Ni, 3% Mo | Storage tanks, pressure vessels, flue gas desulfurization |
| Duplex 32750 | Fe, 25% Cr, 7% Ni, 3.6% Mo | Heat exchangers, power generation, chemical tankers |
| Duplex 2201 | Fe, 21% Cr, 1.5% Ni, 0.2% Mo | Food processing, water treatment, pharmaceutical |
Available Sizes of Duplex Sheet (MM)
| Size (MM) | Size (MM) |
|---|---|
| 1000 | 2000 |
| 1250 | 2500 |
| 1500 | 3000 |
| 1600 | 3200 |
| 2000 | 4000 |
| 2500 | 6000 |
| 3000 | 8000 |
| 4000 | 10000 |
| 5000 | 12000 |
| 6000 | 15000 |
Chemical Properties of Duplex Stainless Steel
| Element | Composition (%) |
|---|---|
| Iron (Fe) | 60.0 - 70.0 |
| Chromium (Cr) | 18.0 - 28.0 |
| Nickel (Ni) | 4.5 - 8.0 |
| Molybdenum (Mo) | 2.5 - 4.0 |
| Manganese (Mn) | 0.5 - 2.0 |
| Silicon (Si) | 0.5 - 1.0 |
| Carbon (C) | 0.03 max |
| Sulfur (S) | 0.02 max |
Mechanical Properties of Duplex Stainless Steel
| Property | Value |
|---|---|
| Tensile Strength (MPa) | 620 - 800 |
| Yield Strength (MPa) | 450 - 600 |
| Elongation (%) | 25 - 40 |
| Hardness (HB) | 250 - 300 |
| Impact Toughness (J) | 50 at -40°C |
Duplex Stainless Steel – Physical & Thermal Properties
Density of Duplex Stainless Steel
| Property | Metric | Imperial |
|---|---|---|
| Density | 7.8 g/cm³ | 0.28 lb/in³ |
Melting Point of Duplex Stainless Steel
| Property | Metric | Imperial |
|---|---|---|
| Melting Point | 1300 - 1400 °C | 2372 - 2552 °F |
Specific Heat of Duplex Stainless Steel
| Specific Heat of Duplex Stainless Steel | ||
|---|---|---|
| Specific Heat (J/kg·K) | Temperature Range (°C) | Condition |
| 500 | 20 - 100 | Room Temperature |
| 600 | 100 - 600 | High Temperature |
| 700 | 600 - 1000 | Very High Temperature |
Electrical Resistivity of Duplex Stainless Steel
| Electrical Resistivity | ||
|---|---|---|
| Value (µΩ·m) | Temperature (°C) | Treatment or Condition |
| 0.73 | 20 | As-rolled |
| 0.75 | 100 | |
| 0.77 | 200 | |
| 0.80 | 300 | |
| 0.82 | 400 | |
Equivalent of Duplex Stainless Steel
| Standard | Werkstoff Nr. | UNS |
|---|---|---|
| ASTM A240 | 1.4462 | S32205 |
| EN 10088-3 | X2CrNiMoN22-5-3 | S31803 |
Manufacturing Process & Heat Treatment of Duplex Steel Sheets
Annealing
Annealing of duplex steel sheets involves heating the material to a temperature range of 1000°C to 1100°C, followed by controlled cooling. This process helps to relieve internal stresses, improve ductility, and refine the microstructure, ensuring optimal mechanical properties for further processing and end-use applications.
Forging
The forging process for duplex steel sheets is conducted at elevated temperatures, typically between 1000°C and 1200°C. This hot working process enhances the mechanical properties of the material by refining the grain structure and increasing strength through deformation. The forged sheets are then cooled in air to achieve the desired characteristics.
Hardening & Tempering
| Process | Temperature Range (°C) | Quenching Medium | Purpose |
|---|---|---|---|
| Hardening | 1000 - 1100 | Water or Oil | To increase hardness and strength by transforming the microstructure to martensite. |
| Tempering | 300 - 600 | Air | To reduce brittleness and relieve stresses introduced during hardening. |
| Stress Relieving | 600 - 700 | Air | To alleviate residual stresses and improve dimensional stability. |
The manufacturing and heat treatment processes of duplex steel sheets are crucial in achieving the desired balance of strength and ductility, making them suitable for various industrial applications, including marine, oil and gas, and chemical processing sectors.
Various Types
Duplex Stainless Steel 2205 Sheet
- Thickness: 1.5 mm to 20 mm
- Condition: Hot Rolled, Cold Rolled
- Applications: Oil and Gas, Marine, Chemical Processing
Duplex Stainless Steel 2507 Sheet
- Thickness: 3 mm to 25 mm
- Condition: Annealed
- Applications: Desalination, Power Generation, Pulp and Paper
Duplex Stainless Steel 2304 Sheet
- Thickness: 1 mm to 12 mm
- Condition: Cold Rolled
- Applications: Wastewater Treatment, Construction
Duplex Stainless Steel 321 Sheet
- Thickness: 2 mm to 15 mm
- Condition: Polished
- Applications: Aerospace, Automotive, Industrial Equipment
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 Steel Sheets
| Material Grade | Thickness | Price (USD / Kg) | Price (INR / Kg) |
|---|---|---|---|
| Duplex Steel Sheets | 3 mm | $3.50 – $4.00 | ₹290 – ₹330 |
| Duplex Steel Sheets | 6 mm | $3.80 – $4.30 | ₹310 – ₹350 |
| Duplex Steel Sheets | 10 mm | $4.00 – $4.50 | ₹330 – ₹370 |
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 Steel Sheets.
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
- Duplex Steel Plate Supplier in Singapore
- Stainless Steel Sheet Exporter in Singapore
- Nickel Alloy Sheet Manufacturer in Singapore
- Metal Fabrication Services in Singapore
- Industrial Metal Supplier in Singapore
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