按生產方法分類：工藝分類-電弧焊管，電阻焊管，（高頻，低頻）氣焊管，爐焊管。 一般較小口徑用直縫焊，大口徑用螺旋焊? 1.低壓流體輸送用焊接鋼管（GB/T3092-1993）也稱一般焊管，俗稱黑管。 ?鋼管接壁厚分為普通鋼管和加厚鋼管；? ?接管端形式分為不帶螺紋鋼管（光管）和帶螺紋鋼管。? ?鋼管的規格用公稱口徑（mm）表示，公稱口徑是內徑的近似值。習慣上常用英寸表示，如11/2?等。 ?低壓流體輸送用焊接鋼管除直接用于輸送流體外，還大量用作低壓流體輸送用鍍鋅焊接鋼管的原管。 ?低壓流體輸送用鍍鋅焊接鋼管（GB/T3091-1993）也稱鍍鋅電焊鋼管，俗稱白管。 ?鋼管接壁厚分為普通鍍鋅鋼管和加厚鍍鋅鋼管；? ?接管端形式分為不帶螺紋鍍鋅鋼管和帶螺紋鍍鋅鋼管。? ?鋼管的規格用公稱口徑（mm）表示，公稱口徑是內徑的近似值。習慣上常用英寸表示，如11/2?等。 鍍鋅管廠家普(pu)及專業鋼(gang)(gang)管(guan)知識 3.普(pu)通碳(tan)素鋼(gang)(gang)電線套管(guan)（GB3640-88）是工(gong)業與民(min)用(yong)(yong)建筑(zhu)、安裝(zhuang)機(ji)器設(she)備等電氣安裝(zhuang)工(gong)程(cheng)中用(yong)(yong)于保護 電線的鋼(gang)(gang)管(guan)。?

 4.直縫(feng)電焊(han)(han)鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)（YB242-63）是(shi)(shi)焊(han)(han)縫(feng)與(yu)鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)縱向平行(xing)的(de)(de)(de)(de)鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)。通常分為公制電焊(han)(han)鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)、電焊(han)(han)薄壁管(guan)(guan)、變(bian)壓(ya)器冷卻油(you)管(guan)(guan)等(deng)等(deng)。 5.承(cheng)(cheng)壓(ya)流(liu)(liu)(liu)體(ti)(ti)(ti)輸(shu)送(song)(song)用(yong)(yong)(yong)螺(luo)(luo)(luo)(luo)旋(xuan)(xuan)(xuan)縫(feng)埋弧(hu)(hu)焊(han)(han)鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)（SY5036-83）是(shi)(shi)以(yi)(yi)(yi)熱(re)軋鋼(gang)(gang)(gang)(gang)(gang)帶卷作(zuo)(zuo)管(guan)(guan)坯(pi)(pi)，經常溫螺(luo)(luo)(luo)(luo)旋(xuan)(xuan)(xuan)成(cheng)(cheng)型(xing)，用(yong)(yong)(yong)雙(shuang)面埋弧(hu)(hu)焊(han)(han)法(fa)焊(han)(han)接，用(yong)(yong)(yong)于(yu)承(cheng)(cheng)壓(ya)流(liu)(liu)(liu)體(ti)(ti)(ti)輸(shu)送(song)(song)的(de)(de)(de)(de)螺(luo)(luo)(luo)(luo)旋(xuan)(xuan)(xuan)縫(feng)鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)。鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)口徑大，輸(shu)送(song)(song)效率高(gao)，并(bing)(bing)可節(jie)約(yue)鋪設管(guan)(guan)線的(de)(de)(de)(de)投資。主(zhu)要用(yong)(yong)(yong)于(yu)輸(shu)送(song)(song)石(shi)油(you)、天(tian)然氣的(de)(de)(de)(de)管(guan)(guan)線。 6.承(cheng)(cheng)壓(ya)流(liu)(liu)(liu)體(ti)(ti)(ti)輸(shu)送(song)(song)用(yong)(yong)(yong)螺(luo)(luo)(luo)(luo)旋(xuan)(xuan)(xuan)縫(feng)高(gao)頻(pin)(pin)焊(han)(han)鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)（SY5038-83）是(shi)(shi)以(yi)(yi)(yi)熱(re)軋鋼(gang)(gang)(gang)(gang)(gang)帶卷作(zuo)(zuo)管(guan)(guan)坯(pi)(pi)，經常溫螺(luo)(luo)(luo)(luo)旋(xuan)(xuan)(xuan)成(cheng)(cheng)型(xing)，采 用(yong)(yong)(yong)高(gao)頻(pin)(pin)搭接焊(han)(han)法(fa)焊(han)(han)接的(de)(de)(de)(de)，用(yong)(yong)(yong)于(yu)承(cheng)(cheng)壓(ya)流(liu)(liu)(liu)體(ti)(ti)(ti)輸(shu)送(song)(song)的(de)(de)(de)(de)螺(luo)(luo)(luo)(luo)旋(xuan)(xuan)(xuan)縫(feng)高(gao)頻(pin)(pin)焊(han)(han)鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)。鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)口徑大，輸(shu)送(song)(song)效率高(gao)，并(bing)(bing)可節(jie)省鋪設管(guan)(guan)線的(de)(de)(de)(de)投資。主(zhu)要用(yong)(yong)(yong)于(yu)鋪設輸(shu)送(song)(song)石(shi)油(you)、天(tian)然氣等(deng)的(de)(de)(de)(de)管(guan)(guan)線。? 7.一(yi)般(ban)低壓(ya)流(liu)(liu)(liu)體(ti)(ti)(ti)輸(shu)送(song)(song)用(yong)(yong)(yong)螺(luo)(luo)(luo)(luo)旋(xuan)(xuan)(xuan)縫(feng)埋弧(hu)(hu)焊(han)(han)鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)（SY5037-83）是(shi)(shi)以(yi)(yi)(yi)熱(re)軋鋼(gang)(gang)(gang)(gang)(gang)帶卷作(zuo)(zuo)管(guan)(guan)坯(pi)(pi)，經常溫螺(luo)(luo)(luo)(luo)旋(xuan)(xuan)(xuan)成(cheng)(cheng)型(xing)，采用(yong)(yong)(yong)雙(shuang)面自(zi)動(dong)埋弧(hu)(hu)焊(han)(han)或(huo)單面焊(han)(han)法(fa)制成(cheng)(cheng)的(de)(de)(de)(de)用(yong)(yong)(yong)于(yu)水(shui)、煤氣、空氣和蒸汽等(deng)一(yi)般(ban)低壓(ya)流(liu)(liu)(liu)體(ti)(ti)(ti)輸(shu)送(song)(song)用(yong)(yong)(yong)埋弧(hu)(hu)焊(han)(han)鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)。 8.一(yi)般(ban)低壓(ya)流(liu)(liu)(liu)體(ti)(ti)(ti)輸(shu)送(song)(song)用(yong)(yong)(yong)螺(luo)(luo)(luo)(luo)旋(xuan)(xuan)(xuan)縫(feng)高(gao)頻(pin)(pin)焊(han)(han)鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)（SY5039-83）是(shi)(shi)以(yi)(yi)(yi)熱(re)軋鋼(gang)(gang)(gang)(gang)(gang)帶卷作(zuo)(zuo)管(guan)(guan)坯(pi)(pi)，經常溫螺(luo)(luo)(luo)(luo)旋(xuan)(xuan)(xuan)成(cheng)(cheng)型(xing)， 采用(yong)(yong)(yong)高(gao)頻(pin)(pin)搭接焊(han)(han)法(fa)焊(han)(han)接用(yong)(yong)(yong)于(yu)一(yi)般(ban)低壓(ya)流(liu)(liu)(liu)體(ti)(ti)(ti)輸(shu)送(song)(song)用(yong)(yong)(yong)螺(luo)(luo)(luo)(luo)旋(xuan)(xuan)(xuan)縫(feng)高(gao)頻(pin)(pin)焊(han)(han)鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)。? 9．樁用(yong)(yong)(yong)螺(luo)(luo)(luo)(luo)旋(xuan)(xuan)(xuan)焊(han)(han)縫(feng)鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)（SY5040-83）是(shi)(shi)以(yi)(yi)(yi)熱(re)軋鋼(gang)(gang)(gang)(gang)(gang)帶卷作(zuo)(zuo)管(guan)(guan)坯(pi)(pi)，經常溫螺(luo)(luo)(luo)(luo)旋(xuan)(xuan)(xuan)成(cheng)(cheng)型(xing)，采用(yong)(yong)(yong)雙(shuang)面埋弧(hu)(hu)焊(han)(han)接 或(huo)高(gao)頻(pin)(pin)焊(han)(han)接制成(cheng)(cheng)的(de)(de)(de)(de)，用(yong)(yong)(yong)于(yu)土(tu)木(mu)建(jian)筑結構、碼頭、橋梁等(deng)基(ji)礎樁用(yong)(yong)(yong)鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)