熱鍍鋅鋼管廣泛應用(yong)于建筑、機(ji)械(xie)、煤礦(kuang)、化(hua)工(gong)、鐵道(dao)車輛、汽(qi)車工(gong)業、公(gong)路、橋(qiao)梁、集裝箱(xiang)、體(ti)育設施、農業機(ji)械(xie)、石油(you)機(ji)械(xie)、探礦(kuang)機(ji)械(xie)等制(zhi)造(zao)工(gong)業。

鍍(du)(du)鋅(xin)(xin)(xin)(xin)鋼(gang)(gang)管(guan)(guan)表面(mian)有(you)熱浸鍍(du)(du)或電(dian)鍍(du)(du)鋅(xin)(xin)(xin)(xin)層(ceng)(ceng)的(de)(de)焊接鋼(gang)(gang)管(guan)(guan)。鍍(du)(du)鋅(xin)(xin)(xin)(xin)可增加鋼(gang)(gang)管(guan)(guan)的(de)(de)抗(kang)腐(fu)蝕(shi)(shi)能力，延(yan)長使(shi)(shi)用(yong)(yong)壽(shou)命。鍍(du)(du)鋅(xin)(xin)(xin)(xin)管(guan)(guan)的(de)(de)用(yong)(yong)途很廣，除(chu)作(zuo)(zuo)輸水(shui)(shui)、煤(mei)氣、油(you)(you)(you)等(deng)一般低壓力流體的(de)(de)管(guan)(guan)線(xian)管(guan)(guan)外，還用(yong)(yong)作(zuo)(zuo)石油(you)(you)(you)工(gong)業特別是海洋油(you)(you)(you)田的(de)(de)油(you)(you)(you)井管(guan)(guan)、輸油(you)(you)(you)管(guan)(guan)，化(hua)工(gong)焦化(hua)設(she)(she)備(bei)的(de)(de)油(you)(you)(you)加熱器、冷(leng)凝冷(leng)卻(que)器、煤(mei)餾洗(xi)油(you)(you)(you)交換器用(yong)(yong)管(guan)(guan)，以(yi)及棧橋管(guan)(guan)樁、礦(kuang)山坑道的(de)(de)支撐(cheng)架用(yong)(yong)管(guan)(guan)等(deng)。冷(leng)鍍(du)(du)鋅(xin)(xin)(xin)(xin)管(guan)(guan)就是電(dian)鍍(du)(du)鋅(xin)(xin)(xin)(xin)，鍍(du)(du)鋅(xin)(xin)(xin)(xin)量很少(shao)，只有(you)10－50g/m2，其本身的(de)(de)耐腐(fu)蝕(shi)(shi)性比(bi)熱鍍(du)(du)鋅(xin)(xin)(xin)(xin)管(guan)(guan)相差(cha)很多。正(zheng)規(gui)的(de)(de)鍍(du)(du)鋅(xin)(xin)(xin)(xin)管(guan)(guan)生產(chan)廠(chang)家，為了保(bao)證質量，大(da)多不(bu)采用(yong)(yong)電(dian)鍍(du)(du)鋅(xin)(xin)(xin)(xin)（冷(leng)鍍(du)(du)）。只有(you)那些規(gui)模(mo)小(xiao)、設(she)(she)備(bei)陳舊的(de)(de)小(xiao)企(qi)業采用(yong)(yong)電(dian)鍍(du)(du)鋅(xin)(xin)(xin)(xin)，當然他們的(de)(de)價格也(ye)相對便宜一些。建設(she)(she)部已正(zheng)式下文，淘汰技術落(luo)后的(de)(de)冷(leng)鍍(du)(du)鋅(xin)(xin)(xin)(xin)管(guan)(guan)，不(bu)準(zhun)用(yong)(yong)冷(leng)鍍(du)(du)鋅(xin)(xin)(xin)(xin)管(guan)(guan)作(zuo)(zuo)水(shui)(shui)、煤(mei)氣管(guan)(guan)。 冷(leng)鍍(du)(du)鋅(xin)(xin)(xin)(xin)鋼(gang)(gang)管(guan)(guan)鍍(du)(du)鋅(xin)(xin)(xin)(xin)層(ceng)(ceng)是電(dian)鍍(du)(du)層(ceng)(ceng)，鋅(xin)(xin)(xin)(xin)層(ceng)(ceng)與鋼(gang)(gang)管(guan)(guan)基體獨立分(fen)層(ceng)(ceng)。鋅(xin)(xin)(xin)(xin)層(ceng)(ceng)較薄，鋅(xin)(xin)(xin)(xin)層(ceng)(ceng)簡單附著在鋼(gang)(gang)管(guan)(guan)基體上(shang)，容易脫落(luo)。故(gu)其耐腐(fu)蝕(shi)(shi)性能差(cha)。在新建住宅中，禁止使(shi)(shi)用(yong)(yong)冷(leng)鍍(du)(du)鋅(xin)(xin)(xin)(xin)鋼(gang)(gang)管(guan)(guan)作(zuo)(zuo)為給(gei)水(shui)(shui)管(guan)(guan)。