| Product: | Fin Tube | Type: | Serrated Fin Tube |
|---|---|---|---|
| Standard: | ASTM A335 | Material: | P9 Alloy Steel |
| Fin Material: | Carbon Steel， Stainless Steel， Alloy Steel | Packing: | Ply-wooden Case /Iron Case/ Bundle With Plastic Cap |
| High Light: | Boilers Serrated Finned Tube， P9 Alloy Steel Serrated Fin Tube， ASTM A335 Alloy Steel Fin Tube | ||
ASTM A335 Gr P9 Alloy Steel Serrated Fin Tube Para Calderas
This page is about ASTM A335 Gr. P9 serrated alloy steel fin tube， it is a type of heat exchanger tube designed to improve heat transfer efficiency. And it is generally used in applications where heat transfer is critical， such as boilers， condensers and air coolers.
TONG CHUANG Group can make various industry projects and supply kinds of fin tubes in industries. All of our products are domestically sourced， developed， and produced， we can make sure that you can get products with highest quality and manufacturing standards and a local， concerned， customer service presence!
Specifications For Other Types Of Finned Tubes We Can Offer
| Type | Description | Base tube | Fin specification (mm) | ||
| O.D. (mm) | Fin pitch | Fin height | Fin thick | ||
| Embedded | G-type fin tueb | 16-63 | 2.1~5 | <17 | ~0.4 |
| Extruded | Single metal combined metal | 8-51 | 1.6~10 | <17 | 0.2-0.4 |
| Low fin tube t-type fin tube | 10-38 | 0.6~2 | <1.6 | ~0.3 | |
| Bamboo tube corrugated tube | 16-51 | 8.0~30 | <2.5 | / | |
| Wound | l/kl/ll type fin tube | 16-63 | 2.1~5 | <17 | ~0.4 |
| String | String fin tube | 25-38 | 2.1-3.5 | <20 | 0.2-0.5 |
| U-type | U-type tube | 16-38 | / | / | / |
| Welding | HF-welding fin tube | 16-219 | 3~25 | 5~30 | 0.8-3 |
| H/HH type fin tube | 25-63 | 8~30 | <200 | 1.5-3.5 | |
| Studed fin tube | 25-219 | 8~30 | 5~35 | φ5-20 | |
Base Tube Material: Materials Carbon Steel ，Alloy Steel (P5，P9，P11， P22)，Stainless Steel and Corrosion-resistance Steel and etc.
Fin Material: Materials Copper / Aluminum / Carbon Steel / Stainless Steel
Serrated finned tubes consist of a base tube with serrated fins attached to its outer surface. The presence of these fins helps to increase the rate of heat transfer between the fluid inside the tubes and the air or gas flowing over the fins.And serrated fins increase the heat transfer surface area for more efficient heat exchange. These fin tubes are usually made of materials such as carbon steel， stainless steel or copper. They are used in various industries including power generation， petrochemical and HVAC systems.Overall， serrated finned tubes are designed to improve heat transfer performance.
Specifications Of Serrated Finned Tube We Can Offer
| TONG CHUANG Group's Welded Helical Serrated Finned Tubes | |
| Weld Process | GMAW |
| Tube/Pipe Size | 1.00″ to 12.75″ O.D. |
| Fin Height | 0.375″ to 1.25″ |
| Fin Segment Width | 5/32″ or 5/16″ |
| Fin Thickness | 20ga (.035″) to 16ga (.060″) |
| Fin Pitch | 1 to 7 fins per inch |
| Materials | Any material combination that can be arc welded |
| Tube Length | No practical limit |
Features Of Finned Tube
1. The design of serrated fins can increase the effective surface area for heat transfer， improve heat transfer rate and overall efficiency.
2. Reduce air-side pressure drop: The serrations on the fin surface help break up the boundary layer and reduce air-side pressure drop， thereby reducing energy consumption and operating costs.
3. Improved anti-fouling ability: The serrated fin design also helps to minimize fouling and improve the performance and service life of the heat exchanger.
4. Versatility: Serrated finned tubes can be used in a variety of applications and industries
5. Customizable options: serrated finned tubes can be customized to meet specific requirements
Detailes Of ASTM A335 Tube P9 S50400
ASTM A335 This specification covers nominal wall and minimum wall seamless ferritic alloy-steel pipe intended for high-temperature service. Pipe ordered to this specification shall be suitable for bending， flanging (vanstoning)， and similar forming operations， and for fusion welding. Selection will depend upon design， service conditions， mechanical properties， and high-temperature characteristics.
Chemical Composition (%)–MAX
| C | Mn | P | Su | Si | Cr | Mo |
| 0.15 | 0.3-0.6 | 0.025 | 0.025 | 0.25-1 | 8-10 | 0.9-1.1 |
Mechanical Properties
| Tensile Strength，min | Yield Strength 0.2%Offset，min | Elongation-Longitudinal | Hardness max |
| MPa-585 | MPa-415 | 30% | 25HRC |
Some Related Industries Involved
1.Petroleum Industry
2.Metallurgical industry
3.Power station boilers
4.Heat exchange systems
5.Pharmaceutical industry
6.Petrochemical industry
7.Waste heat recovery
Inspections and Tests
| 1.Chemical Composition | |||
| 2.Mechanical Properties | |||
| 3.Flattening Test | |||
| 4.Ultrasonic Test | |||
| 5.Intergranular Corrosion Test | |||
| 6.Hardness Test | |||
| 7.Transverse Tensile Test (only for bimetallic tube)，etc. |
