45#無縫鋼管的現貨資源目前規格齊全,無縫鋼管用途很廣泛,一般用途的無縫鋼管由普通的碳素結構鋼、低合金結構鋼或合金結構鋼軋制,產量多,主要用作輸送流體的管道或結構零件。根據用途不同分三類供應:
A、按化(hua)學成分(fen)和機械(xie)性(xing)能供應;
B、按機械)性能供應;
C、按水壓試驗供應。GB9948無縫鋼管主要用來生產氣動或液壓元件的產品,如氣缸或油缸,都是用無縫管。45#無縫鋼管的化學成(cheng)分(fen)有(you)碳(tan)C、硅Si、錳(meng)Mn、硫(liu)S、磷P、鉻Cr。GB5310無(wu)縫(feng)(feng)(feng)鋼管(guan)(guan)按(an)照用(yong)途分(fen)為結構用(yong)無(wu)縫(feng)(feng)(feng)鋼管(guan)(guan);輸送用(yong)無(wu)縫(feng)(feng)(feng)鋼管(guan)(guan);鍋爐(lu)用(yong)無(wu)縫(feng)(feng)(feng)鋼管(guan)(guan);鍋爐(lu)用(yong)高壓無(wu)縫(feng)(feng)(feng)鋼管(guan)(guan)、無(wu)縫(feng)(feng)(feng)鋼管(guan)(guan)按(an)照斷面形(xing)(xing)狀,無(wu)縫(feng)(feng)(feng)鋼管(guan)(guan)分(fen)圓(yuan)形(xing)(xing)和異形(xing)(xing)兩種,異形(xing)(xing)管(guan)(guan)有(you)方形(xing)(xing)、橢圓(yuan)形(xing)(xing)、三(san)角形(xing)(xing)、六角形(xing)(xing)、瓜子形(xing)(xing)、星形(xing)(xing)、帶翅管(guan)(guan)多(duo)種復(fu)雜(za)形(xing)(xing)狀。按(an)b類供(gong)應的鋼管(guan)(guan),如(ru)用(yong)于承受(shou)液體(ti)(ti)(ti)壓(ya)力(li),也要進行水壓(ya)(特指:壓(ya)強)試驗。3、專門用(yong)途的無(wu)縫管(guan)(guan)有(you)鍋(guo)爐用(yong)無(wu)縫管(guan)(guan)、化工電力(li)用(yong),地質(zhi)用(yong)無(wu)縫鋼管(guan)(guan)及石油(you)用(yong)無(wu)縫管(guan)(guan)等(deng)多種(zhong)。無(wu)縫鋼管(guan)(guan)具有(you)中空截面,大量(liang)用(yong)作輸送流體(ti)(ti)(ti)的管(guan)(guan)道(dao),如(ru)輸送石油(you)、天然(ran)氣、煤氣、水及某些(xie)固體(ti)(ti)(ti)物料的管(guan)(guan)道(dao)等(deng)。鋼管(guan)(guan)與圓鋼等(deng)實心鋼材相(xiang)比,在抗彎抗扭強度相(xiang)同時,重量(liang)較(jiao)輕(qing),是(shi)一種(zhong)經濟截面鋼材。
廣泛(fan)用(yong)于制造(zao)結構件和機械零(ling)(ling)件,如石油鉆桿、汽(qi)車傳(chuan)動(dong)軸(傳(chuan)動(dong)軸組(zu)成:軸管(guan)、伸縮套(tao)和萬向節)、自(zi)行車架以及建筑)施工中用(yong)的鋼腳手架等用(yong)鋼管(guan)制造(zao)環形零(ling)(ling)件,可提(ti)高材(cai)料利用(yong)率(lv),簡化制造(zao)工序(xu),節約材(cai)料和加工工時,已廣泛(fan)用(yong)鋼管(guan)來(lai)制造(zao)。