| 管道标准： | astm a213， asme sa213 | 管道材料： | 不锈钢，碳钢，合金钢 |
|---|---|---|---|
| 类型 | 带钉鳍管 | 螺柱材料 | 碳钢，不锈钢，合金钢 |
| 管外径 | 25-219MM | 螺柱高度： | 5-35MM |
| 管道长度： | 最大 18 米 | Stud OD: | 5-20MM |
| 螺柱间距 | 8-30MM | 应用： | 加热器部件，制冷部件，热交换器，冷却器，流体冷却器 |
| 强光 | ASTM A213 Fin Tubes， T9 Alloy Steel Studded Fin Tubes， Petrochemical Fire Furnace Finned Tube | ||
ASTM A213 T9 Alloy Steel Studded Fin Tubes， Pin Tubes， Nailhead Pipes For Fired Furnace
ASTM A213 T9 is a specification for seamless ferritic and austenitic alloy steel boiler， superheater， and heat exchanger tubes， which is often used in high-temperature applications in which corrosion resistance and high creep strength are required. ASTM A213 T9 Alloy Steel Studded Fin Tube is made by electrical Resistance welding specially formed round studs in rows around the base tube. The Studs can be supplied in a variety of sizes and shapes. Studded fin tubes have high heat transfer efficiency， which is equivalent to 2-3 times that of the base tube. It can increase the surface of heat transfer coefficient of flue gas to the furnace tube and reduce the amount of base tubes. Heat transfer surface of one studded tube is equivalent to surface of 4 to 10 base tubes.
带钉鳍管 are generally used in furnaces and boilers where the surface is exposed to a corrosive environment where very dirty gas streams require frequent or aggressive cleaning. The studded fin tube is one of the heat transfer component which increases the heat exchange area by helically welded studs on the base tube. Studs and base tube form a strong mechanical contact which improves the heat transfer efficiency. ASTM A213 T9 Alloy Steel Stutdded Fin Tube is widely used in applications such as Boilers， Heat Exchangers， Tube Bundles， Radiators， Air Coolers， etc..
规格
| 底管材料 | 不锈钢，碳钢，合金钢 |
| 底管外径 | 25mm to 219 mm |
| 底管厚度 | 3 毫米至 12.70 毫米 |
| 管道长度 | 2000 mm To 18000 mm |
| 螺柱材料 | 碳钢/不锈钢/合金钢 |
| Stud Outside Diameter | 5 毫米至 20 毫米 |
| 螺柱间距 | 8-30mm Or Customized to Clients Requirements |
| 螺柱高度 | 5mm to 35mm Or Customized |
| 结束语 | PE， BE， Or As per Client Requirement |
化学成分
| C， % | 锰， % | P， % | S， % | 硅，% | Cr， % | 莫， % |
| 0.15 最大值 | 0.30-0.60 | 最大 0.025 | 最大 0.025 | 0.25-1.00 | 8.0-10.0 | 0.90-1.10 |
机械性能
| 拉伸强度，兆帕 | 415 分钟 |
| 屈服强度，兆帕 | 205 分钟 |
| 延伸， % | 30 分钟 |
| 硬度，HB | 179 最大值 |
应用：
供水系统
Transportation Systems
Natural Gas Industry
制造行业
造船业
石油和天然气工业
Boiler parts
Petrochemical Fire Furnace
燃烧加热器
