Low Alloy Steel Embedded G Type Fin Tubes ASTM A213 T5 In Air Cooled Heat Exchanger
Price:
1 - 10000 USD
MOQ:
1 PC
Delivery Time:
5 - 90 Days
Brand:
YUHONG
Product Description
Low Alloy Steel Embedded G Type Fin Tubes ASTM A213 T5 In Air Cooled Heat Exchanger
Product Specifications
| Attribute | Value |
|---|---|
| Material | ASME SA213 T5, ASTM A213 T5 |
| Fin Tube Test | HT/ET |
| Fin Height | 6-15mm |
| Fin Thickness | 0.15max |
| Tube Diameter | 15.9(5/8") to 31.8(1.25") |
| Fin Material | Aluminum, Copper |
Product Description
Embedded G Fin Tube, ASTM A213 T5 Low Alloy steel Tube, Air Cooled Heat Exchanger
An embedded G fin tube, also known as a G-type fin tube, is a specialized heat transfer component designed for enhanced thermal performance. It features aluminum or copper fins that are mechanically embedded into a groove on the outer surface of a metal base tube.
The manufacturing process involves the following steps:
- A helical groove is plowed into the base tube
- The fin strip is wound into the groove under tension
- The groove is then backfilled with the base tube material to secure the fin in place
- The fin is locked into position by rolling the groove closed
Key Characteristics
- High Thermal Performance: The embedded design ensures excellent heat transfer efficiency, even at high operating temperatures up to 400°C
- Durability: The mechanical bond between the fin and the tube provides high stability and resistance to thermal cycling
- Cost-Effective: Compared to extruded fin tubes, G fin tubes offer a good balance between performance and cost
- Material Options: The core tube can be made from carbon steel, stainless steel, copper, or other alloys, while the fins are typically made from aluminum or copper
Applications
- Air-cooled heat exchangers in power plants and refineries
- HVAC systems, refrigeration, and air conditioning
- Waste heat recovery systems
- Process heating and cooling in chemical and petrochemical industries
Advantages
- High fin stability and excellent heat transfer performance
- Suitable for high-temperature applications
- The fin remains firmly attached even under mechanical stress
Limitations
- Mechanical strength of the fins is relatively low, making them susceptible to damage from external forces
- Care must be taken during handling and cleaning to avoid damaging the fins
ASTM A213 Mechanical Properties
ASTM A213 is a specification for seamless ferritic and austenitic alloy steel boiler, superheater, and heat exchanger tubes. The mechanical properties of ASTM A213 tubes vary depending on the specific grade.
General Requirements
- Scope: ASTM A213 covers seamless tubes made from various ferritic and austenitic alloy steels, designed for high-temperature and high-pressure applications
- Size Range: Tubes are typically available in sizes ranging from an outside diameter of 1/8 inch (3.2 mm) to 5 inches (127 mm) and wall thicknesses from 0.015 inch (0.4 mm) to 0.500 inch (12.7 mm)
Additional Notes
- Heat Treatment: Many grades require specific heat treatment processes to achieve the desired mechanical properties
- Impact Resistance: Some grades exhibit high impact resistance, with a typical impact energy of 42 J
- Elongation Adjustments: For certain grades, the minimum elongation values may be adjusted based on wall thickness
- Hardness Testing: Hardness tests are often performed to ensure the material meets the specified mechanical requirements
Mechanical Properties
| Tensile Strength, min | Yield Strength, min | Elongation, min (in 2 in. or 50 mm) | Hardness, max | Rockwell Hardness, max |
|---|---|---|---|---|
| 60 ksi (415 MPa) | 30 ksi (205 MPa) | 30% | 163 HBW / 170 HV (Brinell/Vickers) | 85 HRB |
Chemical Composition
| Carbon (C) | Manganese (Mn) | Phosphorus (P) | Sulfur (S) | Silicon (Si) | Chromium (Cr) | Molybdenum (Mo) |
|---|---|---|---|---|---|---|
| 0.15 max | 0.30 - 0.60 | 0.025 max | 0.025 max | 0.50 max | 4.00 - 6.00 | 0.45 - 0.65 |
Related Videos
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
YUHONG HOLDING GROUP CO., LTD
Location
20 Floor, No.1 New World Building, NO.1018 Min'an Road, Yinzhou District, Ningbo, China, ZIP:315040
Contact Person
Sales Dept. (Marketing Director)