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，無縫鋼管分圓形(xing)(xing)和異(yi)(yi)形(xing)(xing)兩(liang)種，異(yi)(yi)形(xing)(xing)管(guan)(guan)有(you)方形(xing)(xing)、橢圓形(xing)(xing)、三角(jiao)形(xing)(xing)、六(liu)角(jiao)形(xing)(xing)、瓜子形(xing)(xing)、星形(xing)(xing)、 帶翅管(guan)(guan)多(duo)種復雜形(xing)(xing)狀(zhuang)。******直(zhi)徑(jing)(jing)達(da)650mm，最(zui)小直(zhi)徑(jing)(jing)為 6mm。根據用途不同， 有(you)厚壁管(guan)(guan)和薄壁管(guan)(guan)。無縫鋼管(guan)(guan)主要用做石油地質鉆(zhan)探管(guan)(guan)、石油化工用的裂化管(guan)(guan)、鍋 爐管(guan)(guan)、軸承管(guan)(guan)以及汽車(che)、拖拉機、航空用高精(jing)度結構鋼管(guan)(guan)。

　　20#無縫鋼管用(yong)(yong)(yong)(yong)途(tu)很廣(guang)泛(fan)。一般用(yong)(yong)(yong)(yong)途(tu)的(de)無縫(feng)鋼(gang)(gang)(gang)管(guan)由(you)普通的(de)碳素結(jie)構(gou)(gou)鋼(gang)(gang)(gang)、低合(he)金結(jie)構(gou)(gou)鋼(gang)(gang)(gang)或合(he)金結(jie)構(gou)(gou)鋼(gang)(gang)(gang)軋(ya)制，產量最多，主(zhu)要用(yong)(yong)(yong)(yong)作輸送(song)流(liu)體的(de)管(guan)道或結(jie)構(gou)(gou)零件。.2、根據用(yong)(yong)(yong)(yong)途(tu)不同分三類供(gong)(gong)應：a、按(an)化學成分和(he)機械性能供(gong)(gong)應;b、按(an)機械性能供(gong)(gong)應;c、按(an)水壓試驗供(gong)(gong)應。按(an)a、b類供(gong)(gong)應的(de)鋼(gang)(gang)(gang)管(guan)，如用(yong)(yong)(yong)(yong)于承(cheng)受液體壓力，也要進行水壓試驗。3、專(zhuan)門用(yong)(yong)(yong)(yong)途(tu)的(de)無縫(feng)管(guan)有鍋(guo)爐用(yong)(yong)(yong)(yong)無縫(feng)管(guan)、化工電力用(yong)(yong)(yong)(yong)，地質(zhi)用(yong)(yong)(yong)(yong)無縫(feng)鋼(gang)(gang)(gang)管(guan)及(ji)石油用(yong)(yong)(yong)(yong)無縫(feng)管(guan)等多種。

　　20#無縫鋼管具(ju)有(you)中空(kong)截面，大量用(yong)作輸(shu)送流體的管道(dao)，如輸(shu)送石(shi)油(you)、天然(ran)氣、煤氣、水及(ji)某些固體物料的管道(dao)等。鋼(gang)管與圓鋼(gang)等實心(xin)鋼(gang)材相比，在(zai)抗彎抗扭強度相同時(shi)，重量較輕，是一種經濟截面鋼(gang)材。

　　廣泛用(yong)(yong)于制(zhi)造(zao)結構件(jian)和(he)機械零件(jian)，如石油鉆(zhan)桿(gan)、汽車(che)傳動軸、自(zi)行(xing)車(che)架(jia)以及(ji)建筑施工(gong)中用(yong)(yong)的鋼腳(jiao)手架(jia)等用(yong)(yong)鋼管制(zhi)造(zao)環形零件(jian)，可(ke)提高材(cai)料利用(yong)(yong)率，簡化(hua)制(zhi)造(zao)工(gong)序，節約材(cai)料和(he)加工(gong)工(gong)時，已(yi)廣泛用(yong)(yong)鋼管來制(zhi)造(zao)。