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