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(gen)據用途不同(tong)分三類(lei)供應:
A、按化學成分和機械性能(neng)供(gong)應;
B、按(an)機械)性(xing)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#無縫鋼管的化學成分有(you)碳C、硅Si、錳Mn、硫S、磷(lin)P、鉻Cr。GB5310無(wu)(wu)縫鋼(gang)管按(an)照用(yong)(yong)途分為結構用(yong)(yong)無(wu)(wu)縫鋼(gang)管;輸送用(yong)(yong)無(wu)(wu)縫鋼(gang)管;鍋爐用(yong)(yong)無(wu)(wu)縫鋼(gang)管;鍋爐用(yong)(yong)高壓無(wu)(wu)縫鋼(gang)管、無(wu)(wu)縫鋼(gang)管按(an)照斷面形(xing)(xing)(xing)(xing)狀,無(wu)(wu)縫鋼(gang)管分圓形(xing)(xing)(xing)(xing)和異形(xing)(xing)(xing)(xing)兩(liang)種(zhong),異形(xing)(xing)(xing)(xing)管有(you)方(fang)形(xing)(xing)(xing)(xing)、橢(tuo)圓形(xing)(xing)(xing)(xing)、三角形(xing)(xing)(xing)(xing)、六角形(xing)(xing)(xing)(xing)、瓜子形(xing)(xing)(xing)(xing)、星形(xing)(xing)(xing)(xing)、帶翅管多種(zhong)復雜形(xing)(xing)(xing)(xing)狀。按(an)b類供應的(de)(de)鋼管(guan)(guan),如用于承受液體壓(ya)力,也要進行水(shui)壓(ya)(特指:壓(ya)強(qiang))試(shi)驗。3、專門(men)用途的(de)(de)無(wu)(wu)縫(feng)管(guan)(guan)有鍋爐用無(wu)(wu)縫(feng)管(guan)(guan)、化工電力用,地(di)質用無(wu)(wu)縫(feng)鋼管(guan)(guan)及石(shi)油(you)用無(wu)(wu)縫(feng)管(guan)(guan)等多種(zhong)。無(wu)(wu)縫(feng)鋼管(guan)(guan)具有中空截面(mian)(mian),大量用作輸送流體的(de)(de)管(guan)(guan)道,如輸送石(shi)油(you)、天然氣、煤(mei)氣、水(shui)及某些固體物(wu)料的(de)(de)管(guan)(guan)道等。鋼管(guan)(guan)與圓鋼等實心(xin)鋼材(cai)相(xiang)比(bi),在抗彎抗扭(niu)強(qiang)度相(xiang)同時,重(zhong)量較輕,是一(yi)種(zhong)經濟(ji)截面(mian)(mian)鋼材(cai)。
廣(guang)泛(fan)(fan)用于制(zhi)造結構件和(he)機械零件,如石油鉆桿、汽(qi)車傳動軸(zhou)(傳動軸(zhou)組成:軸(zhou)管(guan)、伸縮(suo)套和(he)萬向節(jie))、自行車架(jia)以(yi)及建筑(zhu))施工(gong)中用的鋼腳手架(jia)等用鋼管(guan)制(zhi)造環(huan)形(xing)零件,可提高材料利用率,簡化制(zhi)造工(gong)序,節(jie)約材料和(he)加工(gong)工(gong)時,已(yi)廣(guang)泛(fan)(fan)用鋼管(guan)來(lai)制(zhi)造。