Seamless Carbon Steel Finned Tubes For High-pressure Boiler Applications
Astm a192 fin tubes are seamless carbon steel tubes with fins, designed for high-pressure boiler and heat exchanger applications.
Seamless Carbon Steel Finned Tubes For High-pressure Boiler Applications
Astm a192 fin tubes are seamless carbon steel tubes with fins, designed for high-pressure boiler and heat exchanger applications.
ASTM A192 Fin Tubes, also known as seamless finned tubes, are high-performance boiler finned tubes made from seamless carbon steel, specifically engineered for high-pressure service in heat exchanger finned tubes. Conforming to ASTM A192/ASME SA192 standards, these carbon steel fin tubes are designed for superheaters, water wall panels, heat exchangers, and condensers in petrochemical plants, power generation facilities, and general engineering applications. With their seamless construction and optional fin attachments, ASTM A192 fin tubes provide superior thermal transfer efficiency and corrosion resistance, ensuring robust boiler pipeline protection in demanding environments up to 650°C.
The manufacturing process involves hot-rolling or cold-drawing seamless low-carbon steel tubes, followed by fin attachment methods such as L-type wrapping, G-type embedding, or extruded finning to increase surface area. Base tube outer diameters range from 1/2 in. to 7 in. (12.7mm to 177.8mm), with wall thicknesses from 0.085 in. to 1.000 in. (2.2mm to 25.4mm), and fin configurations customizable for specific heat transfer needs. Tubes are heat-treated at 1200°F (650°C) or higher after cold-finishing to optimize mechanical properties, with lengths up to 18 meters and ends protected by varnishing or metallization for enhanced corrosion resistance. This seamless carbon steel fin tubes design minimizes leak risks and supports bending, flanging, and welding for versatile installations.
ASTM A192 Fin Tubes are subjected to rigorous testing, including tensile, flattening, hardness, flaring, and hydrostatic tests, to comply with ASTM A450/A450M and TEMA standards. The finned structure boosts external surface area by 2.5 to 10 times compared to plain tubes, significantly improving heat transfer in gas-to-liquid or liquid-to-gas applications. These tubes are ideal for high-pressure boilers (up to 9.8 MPa), superheaters, and economizers, where their low-carbon composition ensures good weldability and formability. The fins promote turbulence, reducing fouling from ash or particulates in high-fouling environments like coal-fired power plants, while optional coatings like 3LPE provide additional protection against atmospheric corrosion.
Compared to stainless steel or alloy fin tubes, ASTM A192 fin tubes offer a cost-effective solution for moderate-corrosion applications, with similar thermal performance but lower material costs. Available fin types include L-type for economical designs, embedded G-type for high-temperature stability, and extruded types for enhanced durability. Accessories like support boxes or clamps ensure stability in air cooled exchangers. These seamless finned tubes are particularly suited for refineries, marine applications, paper pulping, and pressure vessels, where their seamless construction and high-pressure capability ensure reliability under extreme conditions.
Addressing challenges like pipeline wear, thermal inefficiency, and moderate corrosion, ASTM A192 Fin Tubes deliver a durable solution for thermal transfer tubes. Their seamless, finned design ensures long-term boiler pipeline protection, making them a preferred choice for engineers in demanding industrial settings. Whether in power plant superheaters, petrochemical heat exchangers, or general engineering systems, these tubes provide reliable performance, energy savings, and extended service life.
ASTM A192 seamless carbon steel finned tubes designed for high pressure and high temperature heat exchanger applications.
Fins enlarge the effective surface area, improving heat exchange efficiency in demanding environments.
Manufactured from seamless carbon steel to withstand pressures up to 9.8 MPa, ensuring durability and reliability.
Ideal for high-temperature boiler, superheater, and heat recovery applications in power and process industries.
Longitudinal fins welded along the tube length for extended surface area.
Helical fins continuously welded with high-frequency resistance for strength and durability.
Aluminum or copper strips wound into grooves on the tube surface for excellent thermal conductivity.
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.06–0.18 |
| Manganese (Mn) | 0.27–0.63 |
| Silicon (Si) | ≤0.25 |
| Phosphorus (P) | ≤0.035 |
| Sulfur (S) | ≤0.035 |
| Property | Value |
|---|---|
| Tensile Strength, min (MPa) | 325 |
| Yield Strength, min (MPa) | 180 |
| Elongation, min (%) | 35 |
| Hardness (HBW) | ≤137 (for ≥5.1 mm wall thickness) |
The ASTM A192/ASME SA192 standard is applicable to seamless carbon steel pipes used for boilers and superheaters in high-pressure environments, with a focus on meeting the minimum wall thickness necessary for these applications.
ASTM A 192 boiler tube equivalent EN 10216-2, DIN 17175, BS 3059 Part II, NF A 49-213, NBR 5594 ASTM (American Society for Testing Materials standard) A192 and ASME (American Society of Mechanical Engineers standards) SA192. Equivalent Materials 1010, St35.
| Feature | ASTM A192 | ASTM A179 | ASTM A210 Grade A1 |
|---|---|---|---|
| Material Type | Carbon Steel | Carbon Steel | Carbon Steel |
| Application | High-Pressure Boilers & Superheaters | Low-Pressure Heat Exchangers | Medium-Pressure Boiler Tubes |
| Manufacturing Process | Seamless, Hot/Cold Finished | Cold Drawn | Hot Rolled or Cold Drawn |
| Tensile Strength (MPa) | ≥325 | ≥325 | ≥415 |
| Yield Strength (MPa) | ≥180 | ≥180 | ≥255 |
| Elongation (%) | ≥35 | ≥35 | ≥30 |
| Temperature Service Range | High (Steam & Pressure) | Low to Medium | Medium |
| Corrosion Resistance | Good (With Coatings) | Moderate | Moderate |
| Key Advantage | High-pressure capability & structural durability | High thermal conductivity for heat exchangers | Cost-effective for general boiler use |
Our factory is equipped with professional technical research and design personnel who can provide product optimization design and services.
Quality is the foundation of an enterprise. We adopt advanced production equipment and experienced technical personnel, constantly improve product technology, strictly control every processing step, and strive to compete with first-class quality products.
Testing instrument
Hardness tester
Drawing Machine
Component analyzer
Aluminium KL finned tube
L LL KL G production line
Production equipments
Extrusion equipment
Fin tube bending
Finned tubes are available in many types and configurations. Below is a detailed classification based on fabrication process, fin geometry, material, and applications.
Low fin tubes enhance heat transfer in compact hea...
Longitudinal finned tubes boost heat transfer effi...
Laser welded finned tubes enhance heat exchanger e...
Helical solid finned tubes enhance heat transfer e...
High fin tubes maximize heat transfer efficiency i...
L, ll, and kl finned tubes optimize heat transfer ...