鋼(gang)管(guan)(guan)(Steel pipe)生(sheng)產技(ji)術的(de)發(fa)展(zhan)開始(shi)于自(zi)行車制造(zao)(zao)業的(de)興起(qi)、19 世(shi)紀初期(qi)石油(you)的(de)開發(fa)、兩次(ci)世(shi)界大(da)戰期(qi)間艦船、鍋爐(lu)、飛(fei)機的(de)制造(zao)(zao),第二次(ci)世(shi)界大(da)戰后(hou)火電鍋爐(lu)的(de)制造(zao)(zao),化學工(gong)(gong)業的(de)發(fa)展(zhan)以及石油(you)天然氣(qi)的(de)鉆采(cai)和(he)運(yun)輸等(deng),都有力地推動著(zhu)鋼(gang)管(guan)(guan)工(gong)(gong)業在(zai)品種、產量(liang)和(he)質量(liang)上(shang)的(de)發(fa)展(zhan)。鋼(gang)管(guan)(guan)不僅(jin)用(yong)(yong)于輸送流體和(he)粉狀固體、交換熱(re)能、制造(zao)(zao)機械零件和(he)容器,它還是一種經(jing)濟鋼(gang)材。用(yong)(yong)鋼(gang)管(guan)(guan)制造(zao)(zao)建筑(zhu)結構網架、支(zhi)柱和(he)機械支(zhi)架,可(ke)(ke)以減(jian) 輕重(zhong)量(liang),節省金屬20~40%,而且(qie)可(ke)(ke)實現(xian)工(gong)(gong)廠(chang)化機械化施(shi)工(gong)(gong)。,用(yong)(yong)鋼(gang)管(guan)(guan)制造(zao)(zao)公路(lu)橋梁不但可(ke)(ke)節省鋼(gang)材、簡(jian)化施(shi)工(gong)(gong),而且(qie)可(ke)(ke)大(da)大(da)減(jian)少涂保護(hu)層的(de)面積,節約投資和(he)維(wei)護(hu)費用(yong)(yong)。