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)(xing)和(he)異形(xing)(xing)(xing)兩(liang)種(zhong)(zhong)，異形(xing)(xing)(xing)管(guan)有方形(xing)(xing)(xing)、橢圓形(xing)(xing)(xing)、三角(jiao)形(xing)(xing)(xing)、六角(jiao)形(xing)(xing)(xing)、瓜子形(xing)(xing)(xing)、星形(xing)(xing)(xing)、 帶翅管(guan)多種(zhong)(zhong)復雜(za)形(xing)(xing)(xing)狀。******直徑達650mm，最小(xiao)直徑為 6mm。根(gen)據用(yong)途不同， 有厚壁管(guan)和(he)薄壁管(guan)。無縫鋼(gang)管(guan)主(zhu)要用(yong)做石油地質鉆探管(guan)、石油化工用(yong)的裂化管(guan)、鍋 爐管(guan)、軸承管(guan)以及汽車、拖拉機、航空用(yong)高精度結構鋼(gang)管(guan)。

　　20#無縫鋼管用(yong)(yong)途(tu)(tu)(tu)(tu)很廣泛。一(yi)般用(yong)(yong)途(tu)(tu)(tu)(tu)的(de)無(wu)縫鋼(gang)管由普通的(de)碳(tan)素結(jie)構(gou)鋼(gang)、低合金(jin)(jin)結(jie)構(gou)鋼(gang)或合金(jin)(jin)結(jie)構(gou)鋼(gang)軋制(zhi)，產量(liang)最(zui)多，主要用(yong)(yong)作(zuo)輸送(song)流體的(de)管道或結(jie)構(gou)零件。.2、根據用(yong)(yong)途(tu)(tu)(tu)(tu)不同分三(san)類(lei)供(gong)(gong)應(ying)：a、按(an)(an)化(hua)學成分和機(ji)械性(xing)能供(gong)(gong)應(ying);b、按(an)(an)機(ji)械性(xing)能供(gong)(gong)應(ying);c、按(an)(an)水(shui)壓試驗(yan)(yan)供(gong)(gong)應(ying)。按(an)(an)a、b類(lei)供(gong)(gong)應(ying)的(de)鋼(gang)管，如用(yong)(yong)于承(cheng)受液體壓力，也要進行水(shui)壓試驗(yan)(yan)。3、專門(men)用(yong)(yong)途(tu)(tu)(tu)(tu)的(de)無(wu)縫管有鍋爐用(yong)(yong)無(wu)縫管、化(hua)工電力用(yong)(yong)，地質用(yong)(yong)無(wu)縫鋼(gang)管及(ji)石油用(yong)(yong)無(wu)縫管等多種。

　　20#無縫鋼管具有(you)中空截面，大量(liang)用作輸送流體的(de)管道，如輸送石油、天然(ran)氣、煤氣、水及某些(xie)固體物料的(de)管道等(deng)(deng)。鋼(gang)管與(yu)圓鋼(gang)等(deng)(deng)實心(xin)鋼(gang)材相(xiang)比，在抗彎抗扭強度(du)相(xiang)同(tong)時，重量(liang)較(jiao)輕，是一種(zhong)經(jing)濟截面鋼(gang)材。

　　廣(guang)泛用(yong)(yong)于制(zhi)造結(jie)構件(jian)和(he)機(ji)械零件(jian)，如石油鉆桿、汽車(che)傳動(dong)軸、自(zi)行車(che)架以及建筑施工(gong)中(zhong)用(yong)(yong)的鋼腳(jiao)手架等用(yong)(yong)鋼管制(zhi)造環形零件(jian)，可提(ti)高材料利(li)用(yong)(yong)率，簡(jian)化(hua)制(zhi)造工(gong)序，節約材料和(he)加工(gong)工(gong)時，已廣(guang)泛用(yong)(yong)鋼管來(lai)制(zhi)造。