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| 起源の場所: | 中国 |
| ブランド名: | YUHONG |
| 証明: | ISO9001:2015; ISO14001:2015; ISO45001:2018; PED 2014/68/EU; WPS/PQR/WPQ; ISO 3834 |
| モデル番号: | 該当なし |
| 最小注文数量: | 治療部位により異なります |
|---|---|
| 価格: | To be discussed |
| パッケージの詳細: | 鉄フレーム木製ケース |
| 受渡し時間: | 50-120日 |
| 支払条件: | LC、T/T |
| 供給の能力: | 5000メートル/日 |
| 製品: | シングルフィンチューブ | 材料: | ASTM A335 P11 |
|---|---|---|---|
| 応用: | 熱交換器とボイラー | パッケージ: | 鉄フレーム木製ケース |
Serrated Finned Tubes manufactured from ASTM A335 P11 alloy steel are advanced heat transfer components designed to improve thermal efficiency in high-temperature and high-pressure applications. By increasing the external surface area of the tube, serrated fins significantly enhance heat transfer performance while maintaining excellent mechanical strength and resistance to thermal stress.
ASTM A335 P11 is a chromium-molybdenum alloy steel grade widely used in power generation, petrochemical, and industrial boiler systems due to its superior high-temperature strength, creep resistance, and oxidation resistance. When combined with a serrated fin design, P11 finned tubes provide an ideal solution for boiler economizers, superheaters, reheaters, waste heat recovery units, and industrial heat exchangers.
Our Serrated Finned Tubes are manufactured using controlled production processes to ensure reliable fin attachment, dimensional accuracy, and long service life under demanding operating conditions.
ASTM A335 P11 Serrated Finned Tubes are commonly used in:
| Item | Specification |
|---|---|
| Product Name | Serrated Finned Tube |
| Base Tube Material | ASTM A335 P11 |
| Material Standard | ASTM A335 / ASME SA335 |
| Tube Type | Seamless Alloy Steel Tube |
| Fin Material | Carbon Steel / Alloy Steel / Stainless Steel (according to customer requirements) |
| Manufacturing Method | High-frequency welded serrated fins |
| Fin Type | Serrated / Segmented Helical Fin |
| Surface Condition | Bare tube, coated, or treated as required |
| Length | Up to 18,000 mm (custom lengths available) |
| Inspection Standard | ASTM, ASME, EN, customer specifications |
The following dimensions are commonly supplied for ASTM A335 P11 Serrated Finned Tubes:
| Parameter | Typical Range |
|---|---|
| Outside Diameter | 25.4 mm – 76.2 mm |
| Tube Wall Thickness | 2.5 mm – 10 mm |
| Tube Length | 3,000 mm – 18,000 mm |
| Parameter | Typical Range |
|---|---|
| Fin Height | 10 mm – 25 mm |
| Fin Thickness | 0.8 mm – 2.5 mm |
| Fin Pitch | 2.3 mm – 8 mm |
| Fin Density | 125 – 430 fins/meter |
| Serration Depth | 5 mm – 30 mm |
Dimensions can be customized according to heat exchanger design requirements, operating conditions, and customer drawings.
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.05 – 0.15 |
| Manganese (Mn) | 0.30 – 0.60 |
| Silicon (Si) | 0.50 – 1.00 |
| Chromium (Cr) | 1.00 – 1.50 |
| Molybdenum (Mo) | 0.44 – 0.65 |
| Phosphorus (P) | 0.025 max |
| Sulfur (S) | 0.025 max |
The chromium and molybdenum alloying elements provide enhanced oxidation resistance, improved creep strength, and better performance at elevated temperatures.
| Property | Requirement |
|---|---|
| Tensile Strength | ≥ 415 MPa |
| Yield Strength | ≥ 205 MPa |
| Elongation | ≥ 30% |
| Hardness | According to ASTM A335 requirements |
| Heat Treatment | Normalizing and Tempering |
ASTM A335 P11 tubes are heat treated to achieve a balanced combination of strength, toughness, and thermal stability for high-temperature service.
High-quality ASTM A335 P11 seamless tubes are inspected and prepared according to dimensional and material requirements.
Serrated fins are continuously welded onto the tube surface using high-frequency resistance welding technology, ensuring strong metallurgical bonding between fin and tube.
The fin strip is processed into a serrated structure to increase turbulence and improve heat transfer efficiency.
Final heat treatment, cleaning, and dimensional correction are performed to ensure product reliability.
Each tube undergoes strict quality control before shipment.
To guarantee reliability in demanding industrial environments, ASTM A335 P11 Serrated Finned Tubes are inspected through:
| Feature | Plain Tube | Serrated Finned Tube |
|---|---|---|
| Heat Transfer Area | Limited | Significantly increased |
| Gas-Side Heat Transfer | Moderate | Improved due to turbulence |
| Equipment Size | Larger | More compact design |
| Thermal Efficiency | Standard | Higher efficiency |
| Fouling Control | Lower | Better airflow disturbance |
ASTM A335 P11 Serrated Finned Tubes offer an optimized combination of:
They are a preferred choice for engineers designing efficient boiler and heat recovery systems requiring dependable performance under high-pressure and high-temperature operating conditions.
コンタクトパーソン: Vantin
電話番号: 19537363734
ファックス: 0086-574-88017980
