合金鋼管

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合金鋼管具有中空截面,大量用作輸送流體的管道,如輸送石油,氣,煤氣,水及某些固體物料的管道等.合金鋼管與圓鋼等實(shí)心鋼材相比,在抗彎抗扭強(qiáng)度相同時(shí),重量較輕,是一種經(jīng)濟(jì)截面鋼材,廣泛用于制造結(jié)構(gòu)件和機(jī)械零件,如石油鉆桿,汽車傳動(dòng)軸,自行車架以及建筑施工中用的鋼腳手架等.用合金鋼管制造環(huán)形零件,可提高材料利用率,簡(jiǎn)化制造工序,節(jié)約材料和加工工時(shí),如滾動(dòng)軸承套圈,千斤頂套等,目前已廣泛用合金鋼管來(lái)制造.合金鋼管還是各種常規(guī)武器的材料,槍管,炮筒等都要合金鋼管來(lái)制造.合金鋼管按橫截面積形狀的不同可分為圓管和異型管.由于在周長(zhǎng)相等的條件下,圓面積大,用圓形管可以輸送多的流體.此外,圓環(huán)截面在承受內(nèi)部或外部徑向壓力時(shí),受力較均勻,因此,絕大多數(shù)合金鋼管是圓管.
合金鋼管是無(wú)縫鋼管的一種,其性能要比一般的無(wú)縫鋼管高很多,因?yàn)檫@種鋼管里面含Cr比較多,其,耐低溫,的性能是其他無(wú)縫鋼管比不上的,所以合金鋼管在石油,化工,電力,鍋爐等行業(yè)的用途比較廣泛.
熱軋無(wú)縫鋼管分一般鋼管,低,中壓鍋爐鋼管,高壓鍋爐鋼管,合金鋼管,不銹鋼管,石油裂化管,地質(zhì)鋼管和其它鋼管等.
冷軋無(wú)縫鋼管除分一般鋼管,低中壓鍋爐鋼管,高壓鍋爐鋼管,合金鋼管,不銹鋼鋼管,石油裂化無(wú)縫鋼管,其它鋼管外,還包括碳素薄壁鋼管,合金薄壁鋼管,不銹鋼薄壁鋼管,異型無(wú)縫鋼管.熱軋無(wú)縫管外徑一般大于 32mm,壁厚2.5-75mm,冷軋無(wú)縫鋼管處徑可以到6mm,壁厚可到0.25mm,薄壁管外徑可到5mm,壁厚小于0.25mm,冷軋比熱軋尺寸.


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