ASTM A213 SS 309S 309H Seamless Tube

ASTM A213 SS 309S 309H Seamless Tube – High-Temperature Heat Exchanger Tubing

When your hardware works beneath extraordinary warm and destructive situations, you require tubing that won't fall flat. The ASTM A213 SS 309S 309H Seamless Tube from YOUFASS conveys precisely that. Made to ASTM A213 benchmarks, our 309S and 309H tubes offer prevalent oxidation resistance up to 1000°C. With 15 generation lines creating 50,000 tons every year and ISO9001, PED, and TÜV certifications, we supply solid warm exchanger tubes with a least arrange of fair 1 piece. Our speediest conveyance comes to Tianjin Port in 7 days, backed by total documentation counting MTC 3.1/3.2 and third-party review reports.

Product Overview For ASTM A213 SS 309S 309H Seamless Tube

Our ASTM A213 SS 309S 309H Seamless Tube is designed particularly for requesting warm applications. You get austenitic stainless steel with improved chromium and nickel substance that keeps up auxiliary astuteness indeed when uncovered to rehashed warm cycling.

Whether you're building a unused kettle framework or supplanting worn superheater tubes, these items give the toughness your operations demand.

Available in Two Grades

309S (Lower Carbon): Superior welding characteristics and resistance to sensitization. Perfect when you require reliable execution over welded joints.

309H (Higher Carbon): Improved crawl quality at lifted temperatures. Culminate for applications requiring greatest mechanical quality beneath persistent high-heat exposure.

Both grades share great oxidation resistance. Your choice depends on whether you prioritize weldability or high-temperature strength.

Technical Specifications

Why Choose YOUFASS for Your Heat Exchanger Tubes?

Manufacturing Excellence

We work 15 devoted generation lines with yearly capacity coming to 50,000 tons. Our group of 200+ experts guarantees each tube meets your details. As a Top 500 endeavor in China, we combine scale with precision.

Quality Assurance

Quality isn't an afterthought—it's inserted in our prepare. We keep up strict crude fabric control with traceable steel sources. Each tube experiences thorough testing utilizing devoted review gear. You get items supported by ISO 17025 certify research facility reports and TÜV certification.

Flexible Supply Options

Need a single substitution tube? No issue. Our 1-piece least arrange amount dispenses with stock weight. Arranging a major venture? We give coordinates supply coordination with specialized bolster and on-site commissioning when needed.

Complete Documentation

Every shipment incorporates material test certificates (MTC 3.1 or 3.2), third-party inspection reports (TPI), and manufacturing process sheets (MPS). You get full traceability for compliance and quality verification.

Primary Applications

These tubes exceed expectations in situations where standard materials fail:

Industrial Heaters: Keep up warm exchange proficiency in persistent operation furnaces and heaters handling ceramics, glass, or metals.

Petrochemical Handling: Handle destructive media at hoisted temperatures in refinery warm exchangers and catalytic splitting units.

Power Era: Serve as superheater and reheater tubes in boilers where steam temperatures surpass 500°C.

Heat Treatment Hardware: Withstand warm cycling in tempering heaters and treating lines.

The ASTM A213 SS 309S 309H Seamless Tube keeps up execution judgment over these requesting applications, lessening downtime and substitution costs.

 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 A213 309S/309H seamless tube?

A: It's a heat-resistant austenitic stainless steel tube particularly outlined for high-temperature applications. The consistent development disposes of powerless focuses that welded creases can make beneath warm stress.

Q: 309S vs 309H—what is the difference?

A: The key contrast lies in carbon substance. 309H contains higher carbon (0.04-0.10%) compared to 309S (most extreme 0.08%), giving it predominant high-temperature quality and crawl resistance. Select 309H when most extreme mechanical properties at hoisted temperatures are basic. Select 309S when welding is a essential concern.

Q: Where are these tubes typically used?

A: You'll discover them in heaters, mechanical ovens, warm treatment gear, kettle superheaters, and petrochemical warm exchangers. Any application including supported temperatures over 800°C benefits from these alloys.

Q: Can you supply U-bend tubes for heat exchangers?

A: Yes. We make both straight and U-shaped arrangements up to 18 meters in length. Custom twisting administrations are accessible for particular warm exchanger designs.

Q: What documentation do you provide?

A: Every order includes material test reports (MTR), certificates of compliance, and dimensional inspection reports. Third-party inspection and additional test reports (UT/RT) are available upon request.

Contact Us

Reach out to our technical team at info@youfass.com.