ASTM A335 P9 P11 Alloy Steel Seamless Tube HFW Stud Finned Tube For Heat Exchanger HRSG Boiler Fired Heater Evaporator

ASTM A335 P9 P11 Alloy Steel Seamless Tube HFW Stud Finned Tube For Heat ExchangerHRSG Boiler Fired heater Evaporator

同昌集团 has been operating stainless steel/duplex/nickel for more than 10 years， with annual sales of more than 80，000 tons of stainless steel/duplex/nickel. Our clients have covered more than 45 countries. Our Stainless Steels are widely used in mining， energy， petrochemical， chemical， food mills， paper mills， gas and fluid industries and more. ANSI B16.10: B16.19 SCH 5S， SCH 10S， SCH 20， SCH 30， SCH 40S， SCH 60， SCH80S， XS， SCH 100， SCH 120， SCH160， XXS

HFW solid finned tube Abbreviation for high frequency welded helical helical solid finned tube

Spiral finned tubes provide designers with high thermal efficiency and a compact design solution for a variety of heat exchangers using clean flue gas. There are two types of spiral finned tubes: solid type and serrated type.

Helical solid finned tubes are manufactured by helically wrapping a continuous strip of fins around the tube. High frequency resistance welding typically uses a frequency of 400 kHz. The fins are wrapped around the tube and welded continuously. The fin tape is helically wound on the tube and continuously welded to the base tube along the root of the helix by a high frequency electrical process. The finned band is held under tension and laterally restrained as it is formed around the tube， ensuring that the band is in strong contact with the surface of the base tube. Using the gas metal arc welding process， the continuous welding is performed where the fin strip first begins to bend around the diameter of the tube.

For a given tube or pipe size， the required heat transfer surface area per unit length of tube can be obtained by specifying the appropriate fin height， fin thickness and/or number of fins per meter of length.

HFW 实心翅片管

This welded steel finned tube configuration can be used in any practical heat exchanger application， especially for high temperature and high pressure applications. Important features of this configuration are the efficient and effective bonding of the fin to the tube， and the ability to withstand high temperatures on the fin side under all temperature and pressure conditions.

通过高频电阻焊接将连续的螺旋鳍片连接到基管上，以实现高效、热可靠的结合。

技术细节/基管细节

管道直径：最小外径 20 毫米至最大外径 219 毫米。外径 219 毫米。

管材厚度：最小 2 毫米至 16 毫米

Tube Materials: Carbon Steel， Stainless Steel， Alloy Steel， Weathering Steel， Duplex Steel， Super Duplex Steel， Inconel， High Chromium High Nickel and Chromium Alloys， CK 20 material and some others.

Fin Details

鳍片厚度：最小0.8 毫米至最大4 毫米

鳍片高度：最小0.25英寸（6.35毫米）至最大1.5英寸（38毫米1.5英寸（38毫米）

Fin Density: Min. 43 fins per meter to max. 287 fins per meter

材料碳钢，不锈钢，合金钢，耐候钢，双相钢和 Incolloy。

如需快速报价，请注明以下要求：

件数，

基管：直径、厚度、长度和材料规格。

翅片：材料规格、类型（实心或锯齿形）、高度、厚度、间距、翅片长度和无翅片部分。如有需要，请提供焊接预处理细节。

所需的交货期。

关键词翅片管，翅片管，翅片管 螺旋翅片管，实心翅片管，锯齿形翅片管，螺旋锯齿形翅片管，无缝管