Leading Manufacturer & Exporter of ASTM A789 UNS S32205 Duplex 2205 Tubes
In high-performance industrial systems, tubing plays a critical role where precision, corrosion resistance, and mechanical integrity are essential. As a leading Duplex 2205 Tube Manufacturer in India, CEBEX STEEL INDIA specializes in manufacturing and exporting high-quality seamless and welded Duplex 2205 tubes engineered for critical applications across global industries.
Duplex 2205 stainless steel (UNS S32205 / S31803) features a dual-phase microstructure combining austenitic and ferritic properties. This results in higher strength than standard stainless steel and excellent resistance to pitting, crevice corrosion, and chloride stress corrosion cracking. Our Duplex 2205 tubes are widely used in oil & gas, chemical processing, marine, desalination, and power generation industries.
Manufactured using advanced technology, our tubes ensure precise dimensional accuracy, high-quality surface finish, and full compliance with ASTM, ASME, EN, and DIN standards.
CEBEX STEEL INDIA delivers precision-engineered Duplex 2205 tubes with full compliance to ASTM A789, ASTM A790, ASTM A928 standards. Every tube undergoes strict quality checks including PMI testing, eddy current testing, hydro testing, and mechanical testing.
We maintain full traceability with heat numbers and batch records. All products are supplied with EN 10204 3.1 / 3.2 certification and export documentation. Our global supply network ensures reliable delivery across Africa, the Middle East, Europe, and Southeast Asia.
Product Specification Table
| Feature | Specification / Detail |
|---|---|
| Product Type | Duplex 2205 Stainless Steel Tubes |
| Specifications | ASTM A789, ASTM A790, ASTM A928 |
| Grades | UNS S32205, UNS S31803 |
| Types | Seamless, Welded, ERW, EFW |
| Size Range | ¼" OD to 2" OD |
| Wall Thickness | 0.5 mm to 12 mm |
| Standards | ASME, EN, DIN, ISO |
| Surface Finish | Annealed, Pickled, Bright Annealed, Polished |
These tubes offer excellent corrosion resistance, high strength, and long service life in aggressive environments.
We manufacture seamless tubes for high-pressure and high-temperature applications and welded tubes for structural and general-purpose use. Our range includes heat exchanger tubes, condenser tubes, boiler tubes, instrumentation tubes, and U-tubes. Custom manufacturing is available based on project specifications.
Grades Table
| Grade | Common Name | Applications |
|---|---|---|
| UNS S31803 | Duplex 2205 | Chemical processing, oil & gas |
| UNS S32205 | Duplex 2205 | Marine, desalination, pipelines |
| Category | Standards |
|---|---|
| Tube Standards | ASTM A789, A790, A928 |
| ASME Standards | ASME SA789, SA790 |
| International Standards | EN, DIN, ISO |
Chemical Composition Table (% by Weight)
| Grade | C | Mn | Si | P | S | Cr | Ni | Mo | N |
|---|---|---|---|---|---|---|---|---|---|
| S31803 | 0.03 | 2.00 | 1.00 | 0.030 | 0.020 | 21–23 | 4.5–6.5 | 2.5–3.5 | 0.08–0.20 |
| S32205 | 0.03 | 2.00 | 1.00 | 0.030 | 0.020 | 22–23 | 4.5–6.5 | 3.0–3.5 | 0.14–0.20 |
| Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HB) |
|---|---|---|---|---|
| S31803 | 620 | 450 | 25 | 293 |
| S32205 | 620 | 450 | 25 | 293 |
| Size (OD) | Thickness (mm) | Weight (kg/m) |
|---|---|---|
| ½" | 2.77 | 1.27 |
| 1" | 3.38 | 2.68 |
| 2" | 3.91 | 5.44 |
Custom sizes and specifications are available as per project requirements.
Duplex 2205 tubes are widely used in heat exchangers, condensers, boilers, oil & gas processing, chemical plants, pharmaceuticals, marine systems, and power generation industries. Their superior resistance to chloride environments and excellent mechanical properties make them ideal for offshore and high-pressure applications.
All tubes undergo PMI testing, ultrasonic testing, eddy current testing, hydrostatic testing, and mechanical testing. Each product is supplied with EN 10204 3.1 / 3.2 certification ensuring full traceability.
Tubes are packed in wooden cases and bundles with proper marking. We provide full export documentation including invoices, packing list, and test certificates for global delivery.
As a leading Duplex 2205 Tube Manufacturer in India, CEBEX STEEL INDIA has established a strong presence in African markets by supplying high-quality Duplex 2205 tubes for major industrial projects. Our export team understands the specific requirements of industries across Africa and ensures smooth, timely deliveries with complete documentation and compliance.
From oil & gas and petrochemical projects to power generation and infrastructure development, our Duplex 2205 tubes are trusted by clients in Nigeria, Egypt, Kenya, South Africa, Ethiopia, and other regions. We ensure secure packaging, accurate documentation, and reliable logistics support for every shipment. Visit our Africa Duplex 2205 Tubes Exporter page.
We offer a comprehensive range of high-performance industrial tubes designed to meet diverse application requirements across industries.
| Tube Type | Description |
|---|---|
| SS Tube | General-purpose stainless steel tubes for industrial applications |
| Super Duplex Tube | Tubes designed for extreme corrosive environments |
| Nickel Alloy Tube | High-temperature and corrosion-resistant alloy tubes |
| Inconel Tube | Heat-resistant tubes for critical and high-temperature applications |
| Monel Tube | Nickel-copper alloy tubes suitable for marine and chemical use |
| Hastelloy Tube | Advanced tubes with exceptional resistance to aggressive chemicals |
| Titanium Tube | Lightweight, high-strength tubes with excellent corrosion resistance |
| Copper Tube | High thermal and electrical conductivity tubes for HVAC and plumbing |
| Carbon Steel Tube | Tubes for structural, mechanical, and pressure applications |
| Alloy Steel Tube | High-performance alloy steel tubes suitable for high-pressure systems and environments requiring superior mechanical strength |
| 254 SMO Tubes | Super austenitic tubes for highly aggressive environments |
We deliver consistent quality, competitive pricing, and reliable global supply. Our engineering support ensures correct material selection and full compliance with international standards for every project.
Duplex 2205 is a high-strength stainless steel grade with excellent corrosion resistance, widely used in aggressive industrial environments.
They comply with ASTM A789, ASTM A790, ASME, EN, and DIN standards.
S32205 offers tighter chemical composition control and better corrosion resistance than S31803.
Yes, they provide excellent resistance to seawater corrosion and chloride stress cracking.
Yes, all products come with EN 10204 3.1 / 3.2 Mill Test Certificates and inspection reports.
We supply tubes from ¼" OD to 2" OD with custom thickness and specifications.
Yes, we export worldwide with complete documentation and logistics support.