精密無縫鋼管是一種通過冷軋或冷拔處理后的高精密的鋼管;全稱:冷軋或冷拔精密無縫鋼管。由于精密無縫鋼管內外壁無氧化層、承受高壓無泄漏、高精度、高光潔度、冷彎不變形、擴口、壓扁無裂縫等優點,所以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。
精(jing)密無(wu)(wu)(wu)(wu)縫(feng)(feng)(feng)(feng)鋼(gang)(gang)管(guan)(guan)(guan)的化(hua)(hua)學成分有碳C、硅(gui)Si、錳Mn、硫(liu)S、磷P、鉻Cr。厚壁無(wu)(wu)(wu)(wu)縫(feng)(feng)(feng)(feng)鋼(gang)(gang)管(guan)(guan)(guan)按照用途分為結構(gou)用無(wu)(wu)(wu)(wu)縫(feng)(feng)(feng)(feng)鋼(gang)(gang)管(guan)(guan)(guan);輸送(song)用無(wu)(wu)(wu)(wu)縫(feng)(feng)(feng)(feng)鋼(gang)(gang)管(guan)(guan)(guan);鍋爐用無(wu)(wu)(wu)(wu)縫(feng)(feng)(feng)(feng)鋼(gang)(gang)管(guan)(guan)(guan);鍋爐用高壓無(wu)(wu)(wu)(wu)縫(feng)(feng)(feng)(feng)鋼(gang)(gang)管(guan)(guan)(guan);化(hua)(hua)肥(fei)設備用高壓無(wu)(wu)(wu)(wu)縫(feng)(feng)(feng)(feng)鋼(gang)(gang)管(guan)(guan)(guan);地質磚探用無(wu)(wu)(wu)(wu)縫(feng)(feng)(feng)(feng)鋼(gang)(gang)管(guan)(guan)(guan);石油磚探用無(wu)(wu)(wu)(wu)縫(feng)(feng)(feng)(feng)鋼(gang)(gang)管(guan)(guan)(guan);石油裂(lie)化(hua)(hua)用無(wu)(wu)(wu)(wu)縫(feng)(feng)(feng)(feng)鋼(gang)(gang)管(guan)(guan)(guan);船(chuan)舶(bo)用無(wu)(wu)(wu)(wu)縫(feng)(feng)(feng)(feng)鋼(gang)(gang)管(guan)(guan)(guan);冷拔冷軋精(jing)密無(wu)(wu)(wu)(wu)縫(feng)(feng)(feng)(feng)鋼(gang)(gang)管(guan)(guan)(guan);各種合(he)金管(guan)(guan)(guan)。
按(an)照使(shi)用方法(fa),無縫鋼(gang)管用鋼(gang)可分為四(si)類:
1、制造機(ji)械零(ling)件和結(jie)構用鋼(gang)(gang):這類包(bao)括低碳素鋼(gang)(gang)、中(zhong)碳素鋼(gang)(gang)、低合(he)金鋼(gang)(gang)以及合(he)金鋼(gang)(gang)。
2、石(shi)油地質鉆探管(guan)用鋼(gang)(gang)(gang):這類(lei)鋼(gang)(gang)(gang)包(bao)(解釋(shi):鋼(gang)(gang)(gang)水包(bao)用于煉(lian)鋼(gang)(gang)(gang)廠進(jin)行澆(jiao)注作業)括有中碳鋼(gang)(gang)(gang)、低合金鋼(gang)(gang)(gang)以及合金鋼(gang)(gang)(gang)。
3、制造各類工具用的碳素(su)和合金工具鋼。
4、特(te)殊性(xing)能的鋼(gang)(gang)種:不銹鋼(gang)(gang)不銹耐酸鋼(gang)(gang)、耐熱(re)鋼(gang)(gang)、耐酸鋼(gang)(gang)、低溫用鋼(gang)(gang)以及(ji)其他有特(te)殊性(xing)能要(yao)求的鋼(gang)(gang)種。