| 标准： | 美国材料试验协会 A249/ASME SA249 | 材料 | TP304; 1.4301 |
|---|---|---|---|
| 类型 | 焊接 | 表面： | 酸洗退火，抛光，光亮退火 |
| 非破坏性测试： | 涡流测试 -ASTM E426，静态测试 -ASTM A999，超声波测试 -ASTM E213 | 包装 | 胶合板箱/铁箱 |
| 强光 | Welded Finned Tube TP304， Finned Stainless Steel Welded Pipe， Heat Exchanger Stainless Steel Round Tube | ||
ASTM A249/ASME SA249 TP304/1.4301 STAINLESS STEEL FINNED TUBE FOR AIR COOLER/HEAT EXCHANGER
概述:
The A249 TP304 Extruded fin tube is a type of heat exchanger tube commonly used in various industries. It is made of TP304 grade stainless steel， which provides excellent corrosion resistance and high heat transfer efficiency. The "extruded fin" refers to the fins on the outer surface of the tube， which increase the surface area for better heat transfer.
These tubes are manufactured using the extrusion process， where the fins are formed by pushing the metal through a die. This creates a strong bond between the fin and the tube， ensuring optimal heat transfer performance. The A249 TP304 Extruded fin tube is known for its durability， reliability， and suitability for applications in industries such as power generation， chemical processing， and HVAC (Heating， Ventilation， and Air Conditioning) systems.
With its specific composition and design， the A249 TP304 Extruded fin tube excels in heat transfer applications， making it a popular choice where efficient heat exchange is required.
化学成分
| 等级 | UNS | C | 锰 | P | S | Si | Cr | 倪 |
| 304 | S30400 | 0.08 最大值 | 最多 2.00 | 0.045 最大值 | 0.03 最大值 | 最大 1.00 | 18.0-20.0 | 8.0-11.0 |
| 304L | S30403 | 0.035 最大值 | 最多 2.00 | 0.045 最大值 | 0.03 最大值 | 最大 1.00 | 18.0-20.0 | 8.0-12.0 |
机械性能
| 等级 | 拉伸强度，最小，ksi (MPa) | 屈服强度， 最小， ksi (MPa) | 2 英寸伸长率 或 50 毫米，最小值（%） | 硬度 | 溶解温度， 最小，°F（°C） | |
| 罗克韦尔 | 布氏/维氏 | |||||
| 304 | 75(515) | 30(205) | 35 | 90HRB | 192HBW/200HV | 1900(1040) |
| 304L | 70(485) | 25(170) | 35 | 90HRB | 192HBW/200HV | 1900(1040) |
同等学历：
| 标准 | WERKSTOFF NR. | 统一编号系统 | 欧洲标准 | AFNOR | 英国标准 | 社会变革管理计划 | 日本标准 |
| 304 | 1.4301 | S30400 | X5CrNi18-10 | Z7CN18-09 | 304S31 | 08Х18Н10 | SUS 304 |
| 304L | 1.4306 / 1.4307 | S30403 | X2CrNi18-9 / X2CrNi19-11 | Z3CN18-10 | 304S11 | 03Х18Н11 | SUS 304L |
申请：
1. Heat Exchangers: The A249 TP304 fin tube is widely used in both shell-and-tube and plate heat exchangers. It maximizes the surface area available for heat transfer， improving the overall efficiency of the heat exchange process. These heat exchangers can be found in industries such as oil and gas， chemical processing， power generation， refrigeration， and HVAC systems.
2. Boiler Systems: The A249 TP304 fin tube is utilized in boiler systems for transferring heat from the combustion gases to the water. The finned surface enhances the heat transfer rate， resulting in improved boiler efficiency and energy savings. It is commonly employed in industrial boilers， steam generators， and other heat recovery systems.
3. Air-cooled Heat Exchangers: In applications where water availability or restrictions make it impractical to use water-based heat exchangers， air-cooled heat exchangers are employed. The A249 TP304 fin tube is utilized in the finned coils of these air-cooled heat exchangers to enhance heat dissipation to the surrounding air. This makes it suitable for applications in power plants， refineries， chemical plants， and air conditioning systems.
4. Process Cooling: The A249 TP304 fin tube is employed in process cooling equipment， such as chiller systems and refrigeration units. It effectively transfers heat between the process fluid and the cooling medium， ensuring efficient cooling in industries like food and beverage， pharmaceuticals， and chemical processing.
These are just a few examples of the applications where the A249 TP304 fin tube is commonly used. Its characteristics of corrosion resistance， high heat transfer efficiency， and durability make it versatile for a wide range of heat transfer processes.
