ASTM A790 UNS S32205 Steel Pipe
1. Grade: TP304 / TP304L, TP316 / TP316L
2. Standard: ASTM A688
3. Manufacturing Process: Seamless & Welded
4. OD: 12.7 mm – 114.3 mm
5. Wall Thickness: 0.5 mm – 5 mm
6. Delivery Condition: Solution annealed
7. Certification: ISO9001, PED, ISO 17025 lab, TÜV certified manufacturer
Core Functions and Application:
Applied in condensers and heat exchangers requiring enhanced inspection and reliable performance.
Description
ASTM A790 UNS S32205 Steel Pipe – Superior Duplex Stainless Steel Solution
When your venture requests extraordinary quality and erosion resistance, ASTM A790 UNS S32205 Steel Pipe conveys the execution you require. Made by YOUFASS Stainless Steel Pipe Co., Ltd., our duplex stainless steel channels combine the benefits of austenitic and ferritic structures. With 15 generation lines and an yearly yield of 50,000 tons, we give solid arrangements for requesting mechanical applications. Our fabricating meets ISO9001, PED, and TÜV certifications, guaranteeing each pipe you get experiences thorough quality control from crude fabric sourcing to last inspection.
What Makes UNS S32205 Duplex Steel Special?
UNS S32205 speaks to an made strides adaptation of conventional duplex stainless steel. You get around twice the quality of standard austenitic grades like 316L. This implies you can utilize more slender dividers in your plans, diminishing generally venture weight and cost.
The duplex microstructure gives extraordinary resistance to:
- Stress erosion cracking
- Pitting and hole corrosion
- Chloride environments
- Sulfide stretch cracking
These properties make it perfect when you're working in challenging chemical, marine, or oil and gas environments.
Technical Specifications
| Parameter | Specification |
|---|---|
| Grade | UNS S32205 (Duplex 2205) |
| Standard | ASTM A790 |
| Manufacturing Process | Welded / Seamless |
| Outside Diameter (OD) | 12.7 mm – 114.3 mm |
| Wall Thickness (WT) | 0.5 mm – 5 mm |
| Length Options | Random length, Fixed length, U-bent |
| Heat Treatment | Solution annealed |
| Surface Finish | Pickled and annealed / Bright annealed |
| Packaging | Wooden box with hexagonal binding + woven bag |
Key Applications for Your Projects
ASTM A790 UNS S32205 Steel Pipe serves different mechanical segments where strength matters:
Oil & Gas Industry
- Offshore stages and subsea pipelines
- Gas handling equipment
- Injection and transport lines
Chemical Processing
- Heat exchangers dealing with destructive media
- Storage and transport systems
- Reactor components
Marine & Desalination
- Seawater cooling systems
- Desalination plant piping
- Ballast water systems
Pulp & Paper
- Bleaching equipment
- Digesters and evaporators
- Chemical recuperation systems






Why Choose YOUFASS for Duplex Steel Pipes?
Manufacturing Excellence
You advantage from our 15 devoted generation lines with demonstrated capacity. We keep up strict handle controls all through manufacture, guaranteeing steady mechanical properties and dimensional accuracy.
Complete Documentation
Every arrange comes with comprehensive fabric traceability:
- Material Test Certificates (MTC 3.1/3.2)
- Third-party inspection reports (TPI)
- Welding procedure specifications (WPS/PQR)
- Ultrasonic and radiographic testing reports (UT/RT)
Flexible Order Quantities
Whether you require a single ASTM A790 UNS S32205 Steel Pipe for testing or bulk amounts for major ventures, we oblige your necessities. Our MOQ is fair 1 pipe.
Fast Delivery
We get it venture timelines matter. Our quickest conveyance comes to Tianjin Port in fair 7 days, making a difference you remain on schedule.






Quality Assurance Process
Your peace of intellect begins with our quality framework:
Raw Fabric Control – We source from recognized steel plants with full traceability and chemical composition verification.
Process Observing – Basic parameters like welding warm input, shaping temperature, and toughening cycles are persistently tracked.
Final Assessment – Each pipe experiences dimensional checks, mechanical testing, and non-destructive examination some time recently shipment.
Our ISO 17025 licensed research facility and TÜV certification illustrate our commitment to assembly universal standards.
Standards and Certifications:
- ISO 9001 Quality Management
- PED (Pressure Equipment Directive)
- TÜV certification.

Flexible requesting, quick delivery:
Need a test? Arrange fair one pipe. Arranging a major venture? We'll facilitate end-to-end supply. With quickest conveyance in 7 days to Tianjin Harbour, your plan remains on track.








Clients' approval & trust

Frequently Asked Questions
Q:What is the product?
A:It is an progressed duplex stainless steel pipe with controlled composition limits. The adjusted austenite-ferrite microstructure gives prevalent mechanical quality and erosion resistance compared to routine stainless steels.
Q:S32205 vs S31803, are they the same?
A:Not precisely. Whereas both are duplex grades, S32205 has stricter composition limits—particularly for nitrogen substance. This comes about in superior and more unsurprising execution, particularly with respect to erosion resistance and mechanical properties. S32205 is basically the upgraded determination version.
Q:What are the main applications?
A:You'll discover these pipes in weight vessels, chemical preparing pipelines, seaward structures, warm exchanger frameworks, and different mechanical basic applications where both quality and erosion resistance are basic requirements.
Q:Can you provide custom lengths and configurations?
A:Absolutely. We offer arbitrary lengths, settled lengths agreeing to your details, and U-bent arrangements for warm exchanger applications. Fair share your extend prerequisites with us.
Q:What certifications support international projects?
A:Our products comply with ASTM A790 standards and are backed by ISO9001, PED (Pressure Equipment Directive), and TÜV certifications. We provide all necessary documentation for customs clearance and project compliance.
Get Your Duplex Steel Solution Today
Ready to specify ASTM A790 UNS S32205 Steel Pipe for your next project? Contact our technical team at info@youfass.com.
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