1. What is ASTM A213 T9 Seamless Carbon Steel HFW Serrated Fin Tube?
ASTM A213 T9 Alloy Steel HFW Solid Fin Tube is a high-performance, heat exchanger tube made from T9 alloy
steel. It is commonly used in various industrial applications that
require high-temperature resistance and durability. The tube
features a solid fin design, which enhances heat transfer
efficiency in heat exchangers and boilers. The T9 alloy steel used
in its production offers excellent strength, corrosion resistance,
and thermal stability, making it ideal for environments that
experience extreme temperatures and pressures.
The HFW (High-Frequency Welding) process is used to create the fin tube,
ensuring strong bonding between the base tube and the fin. This
manufacturing method improves the structural integrity of the tube
and increases its thermal performance.
2.Chemical Properties & Mechanical Properties
Dimensional Specifications:
| Base Tube O.D:15.88–325 mm |
| Fin Height::6–50.8 mm | Fin Thickness: 0.8–3.0 mm | Fin Pitch: As Customer’s Request | Tube Ends: Plain Ends / Beveled Ends |
| No Fin Area (Both Ends): As Customer’s Request and Drawing |
Chemical Composition (%)
| ASME A213 T9 Chemical Composition(%) |
| Element | C | Si | Mn | P | S | Cr | Mo |
| Range | 0.15 - 0.25 | 0.50 - 1.00 | 0.30 - 0.60 | ≤ 0.025 | ≤ 0.025 | 8.00 - 10.00 | 0.90 - 1.10 |
Mechanical Properties
| ASME SA192 Mechanical Properties |
| Tensile Strength | Yield Strength | Elongation | Hardness | Max Service Temp. |
| ≥415 MPa | ≥205MPa | ≥20% | ≤ 187HB | 650°C (1200°F) |
3. Specific Applications of ASTM A213 T9 Alloy Steel HFW Solid Fin
Tube
● Power Generation: Boiler superheaters, reheaters, and economizers in coal-fired,
gas-fired, or biomass power plants, where it withstands
high-pressure steam and flue gas corrosion.
● Oil & Gas Industry: Heat exchangers in refineries, petrochemical plants, and offshore
platforms for processes like crude oil heating, hydrocarbon
condensation, and waste heat recovery.
● Industrial Boilers: Waste heat boilers and process heaters in chemical,
metallurgical, and pulp & paper industries, ensuring efficient
energy conversion.
● Marine & Aerospace: Cooling systems for marine engines and aerospace ground support
equipment, where lightweight yet durable heat exchange is critical.
4. Why Choose ASTM 213 T9 Alloy Steel HFW Solid Fin Tube?
A:Company Competitiveness:
Yuhong Holding Group has more than 35 years experience for steel
pipe and tube , fin tube , main application for Petrochemical , Oil
refinary, Furnace, heating, boiler, heat exchanger, air cooler,..,
till now YUHONG brand products already exported more than 85
countries, which like UK, ITALY, SPAIN , USA, MEXICO , COLOMBIA ,
BRAZIL, SAUDI ARANBIA , OMAN, QATAR, U.A.E, KOREA, ...., YUHONG
brand already won good reputation in the market.
B:Product Competitiveness:
● High-Performance Heat Transfer: The solid fin design significantly improves heat transfer
efficiency, making it perfect for heat exchangers and boilers.
● Exceptional Durability: Manufactured from T9 alloy steel, it offers excellent
high-temperature resistance, ensuring long service life in
demanding environments.
● Versatile Applications: Suitable for a wide range of industries, including power
generation, petrochemical, and steam systems.
● Strong Mechanical and Chemical Properties: With high tensile strength and resistance to corrosion, this tube
can withstand extreme operating conditions, providing reliable
performance over time.
