在我國的(de)(de)鋼(gang)(gang)(gang)管(guan)(guan)(guan)制造標準(zhun)中，有(you)結構(gou)(gou)用(yong)(yong)(yong)鋼(gang)(gang)(gang)管(guan)(guan)(guan)和流(liu)體輸(shu)送(song)(song)用(yong)(yong)(yong)鋼(gang)(gang)(gang)管(guan)(guan)(guan)之分。結構(gou)(gou)用(yong)(yong)(yong)鋼(gang)(gang)(gang)管(guan)(guan)(guan)主要(yao)用(yong)(yong)(yong)于一(yi)般金屬結構(gou)(gou)如橋、梁、鋼(gang)(gang)(gang)構(gou)(gou)架等(deng)，它只要(yao)求(qiu)保證強度(du)(du)與剛(gang)度(du)(du)，而對(dui)鋼(gang)(gang)(gang)管(guan)(guan)(guan)的(de)(de)嚴密(mi)性(xing)不作要(yao)求(qiu)。流(liu)體輸(shu)送(song)(song)用(yong)(yong)(yong)鋼(gang)(gang)(gang)管(guan)(guan)(guan)：主要(yao)用(yong)(yong)(yong)于帶有(you)壓力的(de)(de)流(liu)體輸(shu)送(song)(song)，它除了(le)要(yao)保證有(you)符合相應要(yao)求(qiu)的(de)(de)強度(du)(du)與剛(gang)度(du)(du)外，還要(yao)求(qiu)保證密(mi)閉性(xing)，即在出廠前(qian)要(yao)求(qiu)逐根進行水壓試驗。對(dui)壓力管(guan)(guan)(guan)道(dao)來說，它輸(shu)送(song)(song)的(de)(de)介質(zhi)常常是易燃、易爆、有(you)毒、有(you)溫(wen)度(du)(du)、有(you)壓力的(de)(de)介質(zhi)，故應選用(yong)(yong)(yong)流(liu)體輸(shu)送(song)(song)用(yong)(yong)(yong)鋼(gang)(gang)(gang)管(guan)(guan)(guan)。在實(shi)際的(de)(de)工(gong)程設計(ji)、采購和施工(gong)中，發現有(you)用(yong)(yong)(yong)結構(gou)(gou)用(yong)(yong)(yong)鋼(gang)(gang)(gang)管(guan)(guan)(guan)代替流(liu)體輸(shu)送(song)(song)用(yong)(yong)(yong)鋼(gang)(gang)(gang)管(guan)(guan)(guan)的(de)(de)現象，這是絕對(dui)禁(jin)止的(de)(de)。

  結構用無縫鋼管GB/T 8162主要用于一般結構和機械結構。其代表材質（牌號）：碳素鋼20、45號鋼；合金鋼Q345、20Cr、40Cr、20CrMo、30-35CrMo、42CrMo等。結構用不銹鋼無縫管 GB/T 14975-2012 是遍及用于化工、石油、輕紡、醫療、食品、機械等工業的耐侵蝕管道和結構件及零件的不銹鋼制成的熱軋（擠、擴）和冷拔（軋）無縫管。