無縫(feng)鋼(gang)管 20#無縫(feng)鋼(gang)管 20#大口徑(jing)無縫(feng)鋼(gang)管 45#無縫(feng)鋼(gang)管 規格齊全

無(wu)(wu)縫(feng)鋼(gang)(gang)管(guan)(guan)(guan)(guan)由整(zheng)塊金屬制成的(de)，表面上沒(mei)有(you)接(jie)縫(feng)的(de)鋼(gang)(gang)管(guan)(guan)(guan)(guan)，稱(cheng)為(wei)(wei)無(wu)(wu)縫(feng)鋼(gang)(gang)管(guan)(guan)(guan)(guan)。根據(ju)方法，無(wu)(wu)縫(feng)管(guan)(guan)(guan)(guan)分(fen)熱軋管(guan)(guan)(guan)(guan)、冷(leng)軋管(guan)(guan)(guan)(guan)、冷(leng)拔(ba)管(guan)(guan)(guan)(guan)、擠壓管(guan)(guan)(guan)(guan)、頂管(guan)(guan)(guan)(guan)等(deng)。按照(zhao)斷面形(xing)(xing)(xing)狀，無(wu)(wu)縫(feng)鋼(gang)(gang)管(guan)(guan)(guan)(guan)分(fen)圓(yuan)形(xing)(xing)(xing)和異(yi)形(xing)(xing)(xing)兩(liang)種，異(yi)形(xing)(xing)(xing)管(guan)(guan)(guan)(guan)有(you)方形(xing)(xing)(xing)、橢(tuo)圓(yuan)形(xing)(xing)(xing)、三角(jiao)形(xing)(xing)(xing)、六(liu)角(jiao)形(xing)(xing)(xing)、瓜(gua)子形(xing)(xing)(xing)、星形(xing)(xing)(xing)、 帶翅(chi)管(guan)(guan)(guan)(guan)多(duo)種復雜形(xing)(xing)(xing)狀。直徑達(da)650mm，最小直徑為(wei)(wei) 0.3mm。根據(ju)用(yong)(yong)途不(bu)同， 有(you)厚壁管(guan)(guan)(guan)(guan)和薄(bo)壁管(guan)(guan)(guan)(guan)。無(wu)(wu)縫(feng)鋼(gang)(gang)管(guan)(guan)(guan)(guan)主(zhu)要用(yong)(yong)做石(shi)油地質鉆探管(guan)(guan)(guan)(guan)、石(shi)油化工(gong)用(yong)(yong)的(de)裂化管(guan)(guan)(guan)(guan)、鍋 爐管(guan)(guan)(guan)(guan)、軸承管(guan)(guan)(guan)(guan)以及汽車、拖拉機、航空(kong)用(yong)(yong)高精(jing)度結(jie)構鋼(gang)(gang)管(guan)(guan)(guan)(guan)。

分類：

沿(yan)其(qi)橫截面的周邊(bian)上(shang)無接縫的鋼(gang)管。根據方法不同(tong)分為(wei)熱軋管、冷(leng)軋管、冷(leng)拔管、擠壓管、頂管等，均(jun)有各自(zi)工藝規定。

材質(zhi)有普通(tong)和優質(zhi)碳(tan)素結(jie)構鋼(gang)（Q215-A～Q275-A和10～50號鋼(gang)）、低合(he)(he)金(jin)鋼(gang)（09MnV、16Mn等）、合(he)(he)金(jin)鋼(gang)、不銹耐酸鋼(gang)等。

按用途(tu)分為一(yi)般用途(tu)的(de)（用于輸水、氣管道和結(jie)構(gou)件、機械零件）和專用的(de)（用于鍋爐、地(di)質(zhi)勘探、軸承、耐酸等）兩類(lei)。