ASTM A269 TP347 Welded Steel Tubing
1. Standard: ASTM A213
2. Grade: TP304/TP304L, TP316/TP316L/TP316Ti, TP321/TP321H, TP347/TP347H, S31254 TP309S/TP309H, TP310S/TP310H, N08904
3. Product Type: Seamless Boiler & Heat Exchanger Tubes
4. Type: Straight pipe, U-shaped pipe
5. OD:1/8”–5” (3.2–127 mm)
6. Wall Thickness: As specified
7. Length: up to 18 meters
8. Certification: ISO9001, PED, ISO 17025 lab, TÜV certified manufacturer
9. Available documents: MTC/MTR (3.1/3.2), TPI, MPS
10. MOQ: 1pc/per size
11. Delivery: 7 days fastest delivery
12. Application:Boiler, Superheater, Heat Exchanger
Description
ASTM A269 TP347 Welded Steel Tubing – High-Temperature Resistant Stainless Steel Tubing
When your venture requests dependable execution in high-temperature and destructive situations, ASTM A269 TP347 Welded Steel Tubing conveys the arrangement you require. Fabricated by YOUFASS Stainless Steel Pipe Co., Ltd., our TP347 tubing highlights niobium-stabilized austenitic stainless steel development that stands up to intergranular erosion indeed after delayed presentation to temperatures between 800°F and 1500°F. With 15 generation lines and an yearly yield capacity of 50,000 tons, we back your basic applications with adaptable MOQ beginning from fair 1 piece and conveyance alternatives as quick as 7 days to major ports.
What Makes ASTM A269 TP347 Welded Steel Tubing Special?
TP347 review stainless steel contains included niobium, which stabilizes the fabric against chromium carbide precipitation. This implies your tubing keeps up its erosion resistance properties indeed in requesting warm conditions.
You'll appreciate how this tubing performs in situations where standard austenitic grades might come up short. The niobium expansion anticipates sensitization amid welding and high-temperature benefit, giving you peace of intellect for long-term reliability.
Our ASTM A269 TP347 Welded Steel Tubing serves businesses that can't bear downtime or fabric disappointment. Whether you're building warm exchangers, control era frameworks, or chemical handling gear, this tubing keeps your operations running smoothly.
Technical Specifications
Here's what you get with our TP347 welded tubing:
| Specification | Details |
|---|---|
| Standard | ASTM A269 |
| Grade | TP347/TP347H |
| Product Type | Welded Stainless Steel Tubing |
| Outer Diameter | 1/8" – 5" (3.2 mm – 127 mm) |
| Wall Thickness | Customized to your specification |
| Length | Up to 18 meters |
| Configuration | Straight or U-shaped |
| Certifications | ISO9001, PED, ISO 17025 lab, TÜV |
| Documentation | MTC/MTR (3.1/3.2), TPI, MPS available |
| MOQ | 1 piece per size |
| Delivery Time | As fast as 7 days to Tianjin Port |
Why Choose YOUFASS for Your Tubing Needs?
One-stop stainless steel channeling arrangements. You do not require to facilitate with different providers. We handle everything from fabricating to documentation, sparing you time and decreasing obtainment complexity.
Traceable quality affirmation. Each tube comes with total fabric traceability. Our ISO 17025 certify research facility and TÜV certification cruel you get items that meet universal standards.
Flexible arrange amounts. Whether you require a single substitution tube or bulk supply for a major venture, we suit your necessities without forcing prohibitive least orders.
Responsive specialized back. Our group of 200+ experts stands prepared to help with fabric determination, detail clarification, and on-site commissioning when needed.
Applications Where TP347 Excels
Your ASTM A269 TP347 Welded Steel Tubing fits impeccably in these requesting environments:
- Power era offices – Evaporator tubes, superheater tubes, and steam dispersion systems
- Chemical handling – Gear taking care of destructive chemicals at hoisted temperatures
- Heat exchanger frameworks – Shell and tube exchangers requiring prevalent warm cycling resistance
- Petrochemical plants – Handle channeling uncovered to high-temperature hydrocarbons
- Food and refreshment preparing – Sterile applications requiring both erosion resistance and cleanability






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 ASTM A269 TP347 welded tubing?
A: It's niobium-stabilized austenitic stainless steel tubing outlined particularly for high-temperature benefit. The niobium expansion anticipates intergranular erosion that can happen amid welding or introduction to temperatures in the sensitization range.
Q: TP347 vs TP321, which is better?
A: TP347 gives superior resistance to intergranular erosion compared to TP321. Whereas both are stabilized grades, TP347's niobium stabilization offers predominant execution in applications including drawn out high-temperature introduction, making it the favored choice for basic high-temperature applications.
Q: What are the typical applications?
A: High-temperature channeling frameworks, control plant kettle tubes, superheaters, chemical preparing hardware, warm exchangers, and petrochemical refinery components. Any application requiring great quality and erosion resistance over 1000°F benefits from TP347.
Q: Can you provide custom lengths and configurations?
A: Completely. We fabricate tubing up to 18 meters in length and can give both straight and U-shaped arrangements. Fair share your particular necessities with our team.
Q: What documentation do you provide?
A: We supply comprehensive material test certificates (MTC/MTR) per EN 10204 3.1 or 3.2, third-party inspection reports (TPI), and manufacturing process sheets (MPS). Extra documentation like ultrasonic or radiographic testing reports are accessible upon request.
Contact Us
Ready to secure solid tubing for your extend, counting ASTM A269 TP347 Welded Steel Tubing? Reach out to our team at info@youfass.com.
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