ASME SA106 Gr.B Seamless Carbon Steel Boiler Tube – High-Temperature & High-Pressure Resistance​​

​​1. Product Overview​​

​​ASME SA106 Gr.B Seamless Boiler Tubes​​ are designed for high-temperature and high-pressure applications in boilers, heat exchangers, and power plants. Manufactured under ASTM A106/ASME SA106 standards, these tubes ensure durability, corrosion resistance, and excellent thermal conductivity.

​​2. Material & Chemical Composition​​

• ​​Material​​: Carbon steel (equivalent to China’s ​​20# steel​​).
• ​​Key Chemical Properties​​:

​​3. Mechanical Properties​​

​​4. Key Features & Advantages​​

• ​​High-Temperature Resistance​​: Suitable for ​​-29°C to 565°C​​ environments .
• ​​Seamless Design​​: No welds, ensuring leak-proof performance under pressure.
• ​​Easy to Weld & Fabricate​​: Low carbon content minimizes post-weld brittleness.
• ​​Certified Quality​​: Complies with ​​ASME, ASTM, and EN standards​​.

​​5. Applications​​

• ​​Boilers​​: Superheaters, reheaters, and steam pipelines.
• ​​Oil & Gas​​: Refinery pipelines, heat exchangers.
• ​​Power Plants​​: High-pressure fluid transport.

​​6. FAQ​​

​​Q: What’s the difference between SA106 Gr.B and 20G tubes?​​
A: SA106 Gr.B has higher Mn content (0.29–1.06%) vs. 20G (0.35–0.65%), offering better strength at elevated temperatures.

​​Q: Do you provide custom sizes?​​
A: Yes! We support OD: ​​10–1200mm​​, thickness: ​​1–50mm​​, and lengths up to ​​18m​​.

​​About Yuhong Holding Group Co., Ltd​​

With ​​20+ years of export experience​​, Yuhong Group is a top-5 Chinese manufacturer of finned tubes and seamless pipes. Our ​​55 production lines​​ and ​​20,000㎡ facility​​ ensure high-capacity output, while advanced technology guarantees precision.

• ​​Website​​: www.steelfintube.com
• ​​Contact​​: Jimmy (Email: jimmy@steelseamlesspipe.com, WhatsApp: +86 18892647377).

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.