High-Frequency Welded ASME SA213 TP321 Stainless Steel Seamless Tube | Extreme Heat-Resistant Boiler & Superheater Piping

Product Overview

Yuhong introduces ​ASME SA213 TP321 Stainless Steel Seamless Tubes, designed for extreme-temperature boiler and superheater systems. These tubes combine ​titanium-stabilized chromium-nickel alloy durability with ​superior oxidation resistance, ideal for demanding thermal environments.

​Key Features

​1. Material & Chemical Composition

• ​Base Material: ASME SA213 TP321 Austenitic Stainless Steel (Ti-stabilized).
• ​Chemical Composition:

Compliant with ASME SA213 and ASTM A213 standards.

​2. Mechanical Properties

​3. Manufacturing Process

• ​High-Frequency Welding (HFW): Ensures ​95% weld integrity with seamless precision.
• ​Heat Treatment: Solution annealing at ​1010-1120°C followed by rapid water quenching.
• ​Surface Finish: Pickling + passivation for enhanced corrosion resistance.

​4. Applications

• ​Boilers & Superheaters: Water walls, steam pipelines, and reheater coils.
• ​Heat Exchangers: Petrochemical and power plant condensers.
• ​Oil & Gas: High-temperature reformers and sulfur recovery units.

​Advantages

1. ​High-Temperature Stability: Resists sensitization and intergranular corrosion at 450-850°C.
2. ​Corrosion Resistance: Performs in acidic, sulfur-rich, and chloride environments.
3. ​Customization: Available in ​OD 6-219mm and ​WT 0.5-30mm with lengths up to ​18m.

​FAQ

Q1: What certifications do you provide?
A: ASME, ISO 9001, EN 10216-5, and PED 2014/68/EU.

Q2: Can these tubes withstand thermal cycling?
A: Yes, titanium stabilization prevents carbide precipitation during repeated heating/cooling.

Q3: What is the lead time for bulk orders?
A: Standard lead time is ​4-6 weeks for 20-ft container loads.

​Why Choose Yuhong?

• ​Advanced Facilities: 55 automated production lines with 3D laser cutting and CNC welding.
• ​Global Compliance: Certified by ABS, DNV, GL, and GOST.
• ​Technical Support: 110+ engineers offer tailored solutions for OD/WT adjustments and surface treatments.

Contact Us:

• ​Email: jimmy@steelseamlesspipe.com
• ​WhatsApp: +86 18892647377
• ​Website: www.steelfintube.com

Yuhong Holding Group has more than 35 years experience for pipeline products, till now we have 3 big joint venture factories,  the total production area more than 130000 square meters, and more than 600 workers with 106 production lines give our clients excellent supporting always.   The factories already got certificates like : ABS, LR, DNV-GL, BV, KR, CCS, ASME, ISO 9001, ISO14001, ISO18001, ect.

Our factories main products as below : 
Factory 1th: Stainless steel seamless tube, Duplex steel seamless tube, Super duplex steel seamless tube, Nickel alloy steel seamless tube;

Factory 2th: Carbon steel seamless tube, Alloy steel seamless tube; Enhanced Heat Tranfer Tube, low fin tube ,U bending workshop;
Factory 3th: High frequency welding fin tube(HFW fin tube, Solid Fin tube, Studded Tube, Serrated Fin tube, Longitudinal welding fin tube), Wound fin tube(L type fin tube, LL type fin tube,  KL type fin tube), Embedded G type fin tube , Extruded fin tube,  low fin tube, U bend & 180deg. Return;

Yuhong Holding Group also has gained rich experience for project package( products contain:Pipes, Fittings, Flanges, heat exchanger, furnace, fired heater, air cooler, boiler) , YUHONG brand has marked its global presence in more than 85 countries, like, Korea, USA, Canada, Mexico, Colombia, Bolivia, Chile, Argentina, Brazil, Ecuador, Austria, New Zealand, Singapore, Malasyia, Indonesia, Thailand, Vietnam, Ukraine, Turkey,Sauid Arabia, Qatar, U.A.E,Israel,India, UK, France, Italy, Gernmany, Poland, Spain,... We have successfully implemented the orders of Cross Country Pipelines for our valuable customers. In addition, we have also developed a huge network of contacts and strategic alliances with most important manufacturers as stockists around the world.