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考登鋼管VS焊管有(yǒu)什麽區別?那個(gè)更好

發布時間:2019-02-16人氣:341

考登鋼管主要用(yòng)於:高含硫煙氣中的省煤氣、空氣預熱器、熱交換器和蒸發器,用於抵禦含(hán)硫煙氣的結露腐蝕(shí)。具有卓越的耐硫離子,耐鹽酸及其他酸性腐蝕的能力。考登鋼管(guǎn)為高(gāo)效、經濟、成熟的傳熱元件,已經大量使用(yòng)在各種鍋爐的空氣預熱器產品中。螺旋槽管利用藕(ǒu)節(jiē)狀內(nèi)壁和螺(luó)旋(xuán)槽導流,強製擾動管內工質,從(cóng)而提高傳熱效率。螺旋槽管的(de)傳熱係數一般可(kě)以達到同徑光管的1.25倍(bèi),使用螺旋槽管可以提高換熱設(shè)備的效率,減少鋼(gāng)管的用(yòng)量,縮小換熱設備占用(yòng)的空間,具有良好的經濟性和可靠(kào)性。

Cauden steel pipe is mainly used for saving gas, air preheater, heat exchanger and evaporator in high sulfur flue gas, to resist condensation corrosion of sulfur flue gas. Excellent sulfur ion resistance, hydrochloric acid resistance and other acid corrosion resistance. Spiral grooved tube is an efficient, economical and mature heat transfer element, which has been widely used in various air preheater products of boilers. Spirally grooved tube utilizes the inner wall of lotus root and spiral groove to guide flow, forcing disturbance of working fluid in the tube, thereby improving heat transfer efficiency. The heat transfer coefficient of spirally grooved tubes can generally reach 1.25 times of that of light tubes with the same diameter. The use of spirally grooved tubes can improve the efficiency of heat exchangers, reduce the consumption of steel tubes, and reduce the space occupied by heat exchangers. It has good economy and reliability.

執行標準

Executive standard

一.成品執行標準(zhǔn):

1. Execution Standards for Finished Products:

1. 直接高頻電焊鋼管:GB/T13793-92

1. Direct High Frequency Welded Steel Pipe: GB/T13793-92

2. 結構無縫鋼管:GB/T8162-2008考登鋼管

2. Structural seamless steel pipe: GB/T8162-2008 Kauden steel pipe

3. 鋼管的驗收、包裝、標誌和質量證明(míng)書:GB2102-88

3. Acceptance, Packaging, Marking and Quality Certificate of Steel Pipe: GB2102-88

二.材質標準:

2. Material standard:

1. 考登鋼(Coten-A):GB4171-84

1. Coten-A: GB4171-84

2. ND鋼管(09CrCuSb 即:09鉻銅銻):GB150-98 GB/T6728

2. ND steel pipe (09CrCuSb: 09CrCuSb: 09Chromium, Copper and Antimony): GB150-98 GB/T6728

3. 螺旋槽管:GB3087-82或參照行業(yè)標(biāo)準:DG1017-94

3. Spiral grooved tube: GB3087-82 or reference industry standard: DG1017-94

考登鋼又名Corten鋼,分兩大類:Corten A、CortenB,是(shì)美國Cu-P係列鋼的代表鋼種,屬於(yú)低合金高強耐大氣腐(fǔ)蝕結構鋼,國內(nèi)叫做耐候鋼。 考登鋼管主要用於:高含硫(liú)煙氣中的(de)省煤氣、空氣預熱器、熱(rè)交換器(qì)和(hé)蒸發器,用於抵(dǐ)禦含(hán)硫煙氣的結露(lù)腐蝕。具有卓越的耐硫離子,耐鹽酸及其他酸性腐(fǔ)蝕的能(néng)力。

Corten steel, also known as Corten steel, can be divided into two categories: Corten A and CortenB. Corten B is the representative steel of U.S. Cu-P series steel. It belongs to low-alloy, high-strength and atmospheric corrosion resistant structural steel. It is called weathering steel in China. Cauden steel pipe is mainly used for saving gas, air preheater, heat exchanger and evaporator in high sulfur flue gas, to resist condensation corrosion of sulfur flue gas. Excellent sulfur ion resistance, hydrochloric acid resistance and other acid corrosion resistance.

焊接鋼(gāng)管也稱(chēng)焊管,是用鋼板或(huò)帶鋼經過卷曲成型後焊接(jiē)製成的鋼管。焊接鋼管生產工藝簡單,生(shēng)產效率高,品種規格多,設備資少,但一般(bān)強度低於無縫鋼管。其(qí)中流體輸送(sòng)用不鏽鋼(gāng)焊接鋼管主(zhǔ)要用於輸送低壓腐蝕性介質。代(dài)表(biǎo)材質(zhì)為0Cr13、0Cr19Ni9、00Cr19Ni11、00Cr17、0Cr18Ni11Nb、0017Cr17Ni14Mo2等。

Welded steel pipe, also known as welded pipe, is a steel pipe made of steel plate or strip after coiling and forming. Welded steel pipe has the advantages of simple production process, high production efficiency, many varieties and specifications and less equipment, but its general strength is lower than that of seamless steel pipe. Among them, stainless steel welded pipe for fluid transportation is mainly used to transport low-pressure corrosive media. The representative materials are 0Cr13, 0Cr19Ni9, 00Cr19Ni11, 00Cr17, 0Cr18Ni11Nb, 0017Cr17Ni14Mo2, etc. 

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