流體用無縫管和結構用無縫鋼管有什麼不同？

結構用無縫鋼管，此標準適用於一般結構、機械結構用無縫鋼管，流體冷拔無縫鋼管標準適用於輸送流體的一般無縫鋼管。流體管與結構管的主要區別是結構用無縫鋼管逐根進行液壓試驗或進行磁粉探傷儀、渦流、漏磁探傷。因此，在壓力管道鋼管的標準選用上，不宜采用流體無縫鋼管的壁厚越厚，它就越具有經濟性和實用性，壁厚越薄，它的加工成本就會大幅度的上升；其次、該產品的工藝決定它的局限性能，一般冷拔無縫鋼管精度低：壁厚不均勻、管內外表光亮度低、定尺成本高，且內外表還有麻點、黑點不易去除；其三、它的檢測及整形必須離線處理。因此它在高壓、高強度、機械結構用材方面體現瞭它的優越性。
Structural seamless pipe. This standard is applicable to seamless steel pipe for general structure and mechanical structure. Fluid seamless steel pipe standard is applicable to general seamless steel pipe for conveying fluids. The main difference between fluid pipes and structural pipes is that fluid seamless pipes are tested by hydra彩色沥清地坪ulic pressure or magnetic particle detector, eddy current and magnetic flux leakage. Therefore, the thicker the wall thickness of the fluid seamless steel pipe is, the more economical and practical it is. The thinner the wall thickness is, the higher the processing cost will be. Secondly, the process of the product determines its limited performance. Generally, the accuracy of the seamless steel pipe is low: the wall thickness is not uniform. The inner and outer surface of the tube has low brightness, high cost of length fixing, and the inner and outer surface has pits and black spots which are not easy to remove. Thirdly, its detection and shaping must be off-line processed. Therefore, it embodies its superiority in high pressure, high strength and mechanical structure materials.
冷拔冷拔無縫鋼管要比熱軋冷拔無縫鋼管壁均勻，且外壁更光滑美觀，熱軋冷拔無縫鋼管一般比無縫鋼管長。冷拔無縫鋼管：1、冷拔無透水地坪縫鋼管可做精度高的小批量生。可以用於機械結構、液壓設備的尺寸精度高和表面光潔度好的精密冷拔無縫管。2、冷拔無縫鋼管性能更優越，金屬比較至密可無焊接縫，可承受較大的壓力。3、冷拔精密鋼管內孔、外壁尺寸有嚴格的公差及粗糙度。熱軋冷拔無縫鋼管：1、建築類的有：底下管道輸送最多較多、蓋樓時抽取地下水、鍋爐熱水輸送用等。2、機械加工、軸承套、加工機械配件等。3、電氣類的：燃氣輸送、水發電流體管道希望我的回答可以幫助到您。
Cold-drawn seamless pipe has more uniform wall than hot-rolled seamless pipe, and its outer wall is more smooth and beautiful. Hot-rolled seamless pipe is generally longer than seamless pipe. Cold-drawn seamless steel pipe: 1. Cold-drawn seamless steel pipe can be produced in small batches with high precision. It can be used for precision cold-drawn seamless tubes with high dimensional accuracy and good surface finish of mechanical structure and hydraulic equipment. 2. Cold-drawn seamless steel pipe has better performance, and its metal is more dense than that of welded seam, so it can withstand greater pressure. 3. There are strict tolerances and roughness for inner and outer dimensions of cold-drawn precision steel pipe. Hot-rolled seamless steel pipe: 1. Architectural category: the most Under-ground Pipeline transportation, extraction of groundwater when building, boiler hot water transportation and so on. 2. Machining, bearing sleeve, processing machinery accessories, etc. 3. Electrical: Gas transmission, hydroelectric fluid pipeline, I hope my answer can help you.