草莓視頻app在線下載:20#無縫鋼管廠家現貨生產：無縫鋼管由圓鋼經過高溫穿孔制成，表面上無焊縫的鋼管，稱為無縫鋼管。根據生產方法，無縫管分熱軋管、冷軋管、冷拔管、擠壓管等。按照斷面形狀，無縫鋼管分(fen)圓形(xing)(xing)和異(yi)形(xing)(xing)兩(liang)種，異(yi)形(xing)(xing)管(guan)有(you)方形(xing)(xing)、橢(tuo)圓形(xing)(xing)、三(san)角(jiao)形(xing)(xing)、六角(jiao)形(xing)(xing)、瓜子形(xing)(xing)、星形(xing)(xing)、 帶(dai)翅(chi)管(guan)多種復(fu)雜形(xing)(xing)狀。******直(zhi)徑(jing)達650mm，最小直(zhi)徑(jing)為 6mm。根據用途(tu)不同， 有(you)厚壁管(guan)和薄(bo)壁管(guan)。無縫鋼(gang)管(guan)主(zhu)要(yao)用做石(shi)油(you)地質鉆(zhan)探管(guan)、石(shi)油(you)化工用的(de)裂化管(guan)、鍋 爐管(guan)、軸(zhou)承(cheng)管(guan)以(yi)及汽(qi)車、拖拉機(ji)、航(hang)空(kong)用高精度結(jie)構鋼(gang)管(guan)。

　　20#無縫鋼管用(yong)(yong)途(tu)(tu)很廣泛。一般用(yong)(yong)途(tu)(tu)的無(wu)縫(feng)(feng)鋼管(guan)由普通的碳素結(jie)構鋼、低合金結(jie)構鋼或(huo)合金結(jie)構鋼軋制，產量(liang)最多，主(zhu)要(yao)用(yong)(yong)作輸(shu)送流體的管(guan)道或(huo)結(jie)構零件。.2、根據用(yong)(yong)途(tu)(tu)不(bu)同分(fen)(fen)三類供(gong)(gong)(gong)應(ying)：a、按化學成(cheng)分(fen)(fen)和(he)機械性能供(gong)(gong)(gong)應(ying);b、按機械性能供(gong)(gong)(gong)應(ying);c、按水壓試驗供(gong)(gong)(gong)應(ying)。按a、b類供(gong)(gong)(gong)應(ying)的鋼管(guan)，如用(yong)(yong)于承受液體壓力，也(ye)要(yao)進行水壓試驗。3、專門用(yong)(yong)途(tu)(tu)的無(wu)縫(feng)(feng)管(guan)有鍋爐用(yong)(yong)無(wu)縫(feng)(feng)管(guan)、化工電力用(yong)(yong)，地質用(yong)(yong)無(wu)縫(feng)(feng)鋼管(guan)及石油用(yong)(yong)無(wu)縫(feng)(feng)管(guan)等多種。

　　20#無縫鋼管具有中空截(jie)面(mian)，大(da)量(liang)用作輸(shu)送(song)流體的(de)管道，如輸(shu)送(song)石(shi)油、天然氣(qi)(qi)、煤(mei)氣(qi)(qi)、水及某(mou)些固(gu)體物(wu)料的(de)管道等(deng)。鋼(gang)管與圓鋼(gang)等(deng)實心鋼(gang)材(cai)相比，在抗彎抗扭強度相同時，重量(liang)較輕，是一種經濟截(jie)面(mian)鋼(gang)材(cai)。

　　廣(guang)泛(fan)用(yong)(yong)(yong)于制造結構(gou)件(jian)和(he)機械(xie)零件(jian)，如石油鉆桿、汽車傳動(dong)軸(zhou)、自行(xing)車架以及(ji)建筑施(shi)工中用(yong)(yong)(yong)的鋼腳手架等用(yong)(yong)(yong)鋼管制造環形零件(jian)，可(ke)提高材(cai)料(liao)利用(yong)(yong)(yong)率，簡化制造工序，節約材(cai)料(liao)和(he)加工工時，已廣(guang)泛(fan)用(yong)(yong)(yong)鋼管來制造。