熱鍍鋅鋼管廣泛應用于建筑、機械、化工、電力、鐵道車輛、汽車工業、公路、橋梁、集裝箱、體育設施、農業機械、石油機械、探礦機械等制造工業。
     鍍(du)鋅(xin)鋼管(guan)(guan)(guan)表面有熱浸鍍(du)或電鍍(du)鋅(xin)層的(de)焊接鋼管(guan)(guan)(guan)。鍍(du)鋅(xin)可增加(jia)鋼管(guan)(guan)(guan)的(de)抗腐蝕能力(li)，延長使用(yong)壽命。鍍(du)鋅(xin)管(guan)(guan)(guan)的(de)用(yong)途很(hen)廣，除作輸(shu)、油等一(yi)般低壓力(li)流體的(de)管(guan)(guan)(guan)線管(guan)(guan)(guan)外(wai)，還用(yong)作石油工(gong)業特別是海洋油田的(de)油井管(guan)(guan)(guan)、輸(shu)油管(guan)(guan)(guan)，化(hua)(hua)工(gong)焦化(hua)(hua)設備的(de)油加(jia)熱器(qi)、冷凝冷卻(que)器(qi)、餾(liu)洗油交換(huan)器(qi)用(yong)管(guan)(guan)(guan)，以及棧橋管(guan)(guan)(guan)樁、礦山坑道的(de)支(zhi)撐架用(yong)管(guan)(guan)(guan)等。

     鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)分(fen)為(wei)冷(leng)鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)、熱(re)鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)，冷(leng)鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)已(yi)被禁用(yong)(yong)(yong)(yong)(yong)，后者還被 提倡暫時(shi)能(neng)(neng)使用(yong)(yong)(yong)(yong)(yong)。六(liu)七(qi)十年代(dai)，國(guo)際上(shang)發(fa)(fa)(fa)達 開始開發(fa)(fa)(fa)新型(xing)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)材，并陸續禁用(yong)(yong)(yong)(yong)(yong)鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)。中國(guo)建(jian)設(she)部(bu)等(deng)(deng)四部(bu)委也發(fa)(fa)(fa)文明(ming)確從2000年起禁用(yong)(yong)(yong)(yong)(yong)鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)作(zuo)為(wei)供水(shui)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)，新建(jian)小(xiao)(xiao)區(qu)的(de)(de)(de)(de)(de)冷(leng)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)已(yi)經很少使用(yong)(yong)(yong)(yong)(yong)鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)了(le)，有(you)(you)些(xie)小(xiao)(xiao)區(qu)的(de)(de)(de)(de)(de)熱(re)水(shui)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)使用(yong)(yong)(yong)(yong)(yong)的(de)(de)(de)(de)(de)是(shi)(shi)(shi)鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)。熱(re)鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)在消防(fang)、電(dian)力(li)(li)和(he)高速公路上(shang)有(you)(you)廣泛的(de)(de)(de)(de)(de)應(ying)用(yong)(yong)(yong)(yong)(yong)。熱(re)鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)廣泛應(ying)用(yong)(yong)(yong)(yong)(yong)于建(jian)筑、機(ji)械(xie)(xie)、礦(kuang)、化工(gong)、電(dian)力(li)(li)、鐵道車輛、汽車工(gong)業(ye)(ye)、公路、橋(qiao)梁、集裝箱(xiang)、體(ti)育設(she)施、農業(ye)(ye)機(ji)械(xie)(xie)、石(shi)油(you)機(ji)械(xie)(xie)、探礦(kuang)機(ji)械(xie)(xie)等(deng)(deng)制造工(gong)業(ye)(ye)。鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)表面有(you)(you)熱(re)浸鍍(du)(du)或(huo)電(dian)鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)層的(de)(de)(de)(de)(de)焊(han)接(jie)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)。鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)可增加(jia)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)抗(kang)(kang)腐(fu)蝕(shi)能(neng)(neng)力(li)(li)，延長(chang)使用(yong)(yong)(yong)(yong)(yong)壽命(ming)。鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)用(yong)(yong)(yong)(yong)(yong)途很廣，除作(zuo)輸、、油(you)等(deng)(deng)一(yi)般低壓力(li)(li)流體(ti)的(de)(de)(de)(de)(de)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)線管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)外(wai)，還用(yong)(yong)(yong)(yong)(yong)作(zuo)石(shi)油(you)工(gong)業(ye)(ye)特(te)別(bie)是(shi)(shi)(shi)海洋油(you)田的(de)(de)(de)(de)(de)油(you)井管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)、輸油(you)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)，化工(gong)焦(jiao)化設(she)備的(de)(de)(de)(de)(de)油(you)加(jia)熱(re)器、冷(leng)凝冷(leng)卻(que)器、煤餾洗油(you)交(jiao)換器用(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)，以(yi)及棧橋(qiao)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)樁(zhuang)、礦(kuang)山坑道的(de)(de)(de)(de)(de)支撐架用(yong)(yong)(yong)(yong)(yong)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)等(deng)(deng)。冷(leng)鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)是(shi)(shi)(shi)電(dian)鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)，鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)量很少，只(zhi)有(you)(you)10－50g/m2，其本身的(de)(de)(de)(de)(de)耐腐(fu)蝕(shi)性(xing)比(bi)熱(re)鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)相差(cha)很多。正(zheng)規(gui)的(de)(de)(de)(de)(de)鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)生產(chan)廠(chang)家，為(wei)了(le)保(bao)證(zheng)質(zhi)量，大多不(bu)(bu)采用(yong)(yong)(yong)(yong)(yong)電(dian)鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)（冷(leng)鍍(du)(du)）。只(zhi)有(you)(you)那些(xie)規(gui)模小(xiao)(xiao)、設(she)備陳舊(jiu)的(de)(de)(de)(de)(de)小(xiao)(xiao)企業(ye)(ye)采用(yong)(yong)(yong)(yong)(yong)電(dian)鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)，當然他們的(de)(de)(de)(de)(de)價格也相對便宜(yi)一(yi)些(xie)。建(jian)設(she)部(bu)已(yi)正(zheng)式下文，淘汰技(ji)術落(luo)(luo)后的(de)(de)(de)(de)(de)冷(leng)鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)，不(bu)(bu)準用(yong)(yong)(yong)(yong)(yong)冷(leng)鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)作(zuo)。 冷(leng)鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)層是(shi)(shi)(shi)電(dian)鍍(du)(du)層，鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)層與鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)基體(ti)獨立分(fen)層。鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)層較薄，鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)層簡單附(fu)著在鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)基體(ti)上(shang)，容易脫落(luo)(luo)。故(gu)其耐腐(fu)蝕(shi)性(xing)能(neng)(neng)差(cha)。在新建(jian)住宅(zhai)中，禁止(zhi)使用(yong)(yong)(yong)(yong)(yong)冷(leng)鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)作(zuo)為(wei)給水(shui)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)。鋼(gang)(gang)(gang)材力(li)(li)學性(xing)能(neng)(neng)是(shi)(shi)(shi)保(bao)證(zheng)鋼(gang)(gang)(gang)材終使用(yong)(yong)(yong)(yong)(yong)性(xing)能(neng)(neng)（機(ji)械(xie)(xie)性(xing)能(neng)(neng)）的(de)(de)(de)(de)(de)重(zhong)要(yao)(yao)指(zhi)標，它取決于鋼(gang)(gang)(gang)的(de)(de)(de)(de)(de)化學成分(fen)和(he)熱(re)處(chu)理制度(du)。在鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)標準中，根據不(bu)(bu)同(tong)的(de)(de)(de)(de)(de)使用(yong)(yong)(yong)(yong)(yong)要(yao)(yao)求(qiu)，規(gui)定了(le)拉伸性(xing)能(neng)(neng)（抗(kang)(kang)拉強度(du)、屈服(fu)強度(du)或(huo)屈服(fu)點(dian)、伸長(chang)率）以(yi)及硬(ying)度(du)、韌性(xing)指(zhi)標，還有(you)(you)用(yong)(yong)(yong)(yong)(yong)戶要(yao)(yao)求(qiu)的(de)(de)(de)(de)(de)高、低溫性(xing)能(neng)(neng)等(deng)(deng)。鋼(gang)(gang)(gang)的(de)(de)(de)(de)(de)牌號：Q215A；Q215B；Q235A；Q235B。試驗壓力(li)(li)值/Mpa：D10.2-168.3mm為(wei)3Mpa；D177.8-323.9mm為(wei)5Mpa。聚(ju)旺(wang)鍍(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)(xin)(xin)方(fang)矩(ju)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)廠(chang)家