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(chang)家(jia)普(pu)(pu)及專業(ye)鋼(gang)管知識 3.普(pu)(pu)通(tong)碳素(su)鋼(gang)電(dian)線套管（GB3640-88）是工業(ye)與民用建筑、安裝(zhuang)機器設備等電(dian)氣安裝(zhuang)工程中(zhong)用于保護 電(dian)線的鋼(gang)管。?

 4.直縫(feng)(feng)電焊(han)(han)(han)(han)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)（YB242-63）是(shi)(shi)焊(han)(han)(han)(han)縫(feng)(feng)與鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)縱向平行的(de)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)。通常(chang)(chang)分(fen)為公制電焊(han)(han)(han)(han)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)、電焊(han)(han)(han)(han)薄壁管(guan)(guan)(guan)(guan)(guan)(guan)(guan)、變壓(ya)(ya)器冷(leng)卻(que)油(you)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)等等。 5.承(cheng)壓(ya)(ya)流(liu)(liu)體(ti)(ti)輸(shu)(shu)(shu)送(song)(song)(song)(song)用(yong)(yong)(yong)(yong)(yong)(yong)螺(luo)(luo)旋(xuan)(xuan)(xuan)(xuan)(xuan)縫(feng)(feng)埋(mai)弧(hu)焊(han)(han)(han)(han)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)（SY5036-83）是(shi)(shi)以(yi)(yi)熱(re)軋鋼(gang)(gang)(gang)帶(dai)(dai)卷作(zuo)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)坯(pi)，經常(chang)(chang)溫(wen)螺(luo)(luo)旋(xuan)(xuan)(xuan)(xuan)(xuan)成型(xing)(xing)(xing)(xing)，用(yong)(yong)(yong)(yong)(yong)(yong)雙(shuang)面埋(mai)弧(hu)焊(han)(han)(han)(han)法焊(han)(han)(han)(han)接(jie)(jie)，用(yong)(yong)(yong)(yong)(yong)(yong)于承(cheng)壓(ya)(ya)流(liu)(liu)體(ti)(ti)輸(shu)(shu)(shu)送(song)(song)(song)(song)的(de)螺(luo)(luo)旋(xuan)(xuan)(xuan)(xuan)(xuan)縫(feng)(feng)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)。鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)口(kou)徑大，輸(shu)(shu)(shu)送(song)(song)(song)(song)效率高(gao)(gao)，并可節約鋪設管(guan)(guan)(guan)(guan)(guan)(guan)(guan)線(xian)的(de)投資。主(zhu)要(yao)用(yong)(yong)(yong)(yong)(yong)(yong)于輸(shu)(shu)(shu)送(song)(song)(song)(song)石(shi)(shi)油(you)、天(tian)然氣(qi)的(de)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)線(xian)。 6.承(cheng)壓(ya)(ya)流(liu)(liu)體(ti)(ti)輸(shu)(shu)(shu)送(song)(song)(song)(song)用(yong)(yong)(yong)(yong)(yong)(yong)螺(luo)(luo)旋(xuan)(xuan)(xuan)(xuan)(xuan)縫(feng)(feng)高(gao)(gao)頻(pin)焊(han)(han)(han)(han)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)（SY5038-83）是(shi)(shi)以(yi)(yi)熱(re)軋鋼(gang)(gang)(gang)帶(dai)(dai)卷作(zuo)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)坯(pi)，經常(chang)(chang)溫(wen)螺(luo)(luo)旋(xuan)(xuan)(xuan)(xuan)(xuan)成型(xing)(xing)(xing)(xing)，采 用(yong)(yong)(yong)(yong)(yong)(yong)高(gao)(gao)頻(pin)搭接(jie)(jie)焊(han)(han)(han)(han)法焊(han)(han)(han)(han)接(jie)(jie)的(de)，用(yong)(yong)(yong)(yong)(yong)(yong)于承(cheng)壓(ya)(ya)流(liu)(liu)體(ti)(ti)輸(shu)(shu)(shu)送(song)(song)(song)(song)的(de)螺(luo)(luo)旋(xuan)(xuan)(xuan)(xuan)(xuan)縫(feng)(feng)高(gao)(gao)頻(pin)焊(han)(han)(han)(han)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)。鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)口(kou)徑大，輸(shu)(shu)(shu)送(song)(song)(song)(song)效率高(gao)(gao)，并可節省鋪設管(guan)(guan)(guan)(guan)(guan)(guan)(guan)線(xian)的(de)投資。主(zhu)要(yao)用(yong)(yong)(yong)(yong)(yong)(yong)于鋪設輸(shu)(shu)(shu)送(song)(song)(song)(song)石(shi)(shi)油(you)、天(tian)然氣(qi)等的(de)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)線(xian)。? 7.一(yi)(yi)般(ban)低壓(ya)(ya)流(liu)(liu)體(ti)(ti)輸(shu)(shu)(shu)送(song)(song)(song)(song)用(yong)(yong)(yong)(yong)(yong)(yong)螺(luo)(luo)旋(xuan)(xuan)(xuan)(xuan)(xuan)縫(feng)(feng)埋(mai)弧(hu)焊(han)(han)(han)(han)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)（SY5037-83）是(shi)(shi)以(yi)(yi)熱(re)軋鋼(gang)(gang)(gang)帶(dai)(dai)卷作(zuo)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)坯(pi)，經常(chang)(chang)溫(wen)螺(luo)(luo)旋(xuan)(xuan)(xuan)(xuan)(xuan)成型(xing)(xing)(xing)(xing)，采用(yong)(yong)(yong)(yong)(yong)(yong)雙(shuang)面自動埋(mai)弧(hu)焊(han)(han)(han)(han)或單(dan)面焊(han)(han)(han)(han)法制成的(de)用(yong)(yong)(yong)(yong)(yong)(yong)于水(shui)、煤氣(qi)、空(kong)氣(qi)和(he)蒸汽等一(yi)(yi)般(ban)低壓(ya)(ya)流(liu)(liu)體(ti)(ti)輸(shu)(shu)(shu)送(song)(song)(song)(song)用(yong)(yong)(yong)(yong)(yong)(yong)埋(mai)弧(hu)焊(han)(han)(han)(han)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)。 8.一(yi)(yi)般(ban)低壓(ya)(ya)流(liu)(liu)體(ti)(ti)輸(shu)(shu)(shu)送(song)(song)(song)(song)用(yong)(yong)(yong)(yong)(yong)(yong)螺(luo)(luo)旋(xuan)(xuan)(xuan)(xuan)(xuan)縫(feng)(feng)高(gao)(gao)頻(pin)焊(han)(han)(han)(han)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)（SY5039-83）是(shi)(shi)以(yi)(yi)熱(re)軋鋼(gang)(gang)(gang)帶(dai)(dai)卷作(zuo)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)坯(pi)，經常(chang)(chang)溫(wen)螺(luo)(luo)旋(xuan)(xuan)(xuan)(xuan)(xuan)成型(xing)(xing)(xing)(xing)， 采用(yong)(yong)(yong)(yong)(yong)(yong)高(gao)(gao)頻(pin)搭接(jie)(jie)焊(han)(han)(han)(han)法焊(han)(han)(han)(han)接(jie)(jie)用(yong)(yong)(yong)(yong)(yong)(yong)于一(yi)(yi)般(ban)低壓(ya)(ya)流(liu)(liu)體(ti)(ti)輸(shu)(shu)(shu)送(song)(song)(song)(song)用(yong)(yong)(yong)(yong)(yong)(yong)螺(luo)(luo)旋(xuan)(xuan)(xuan)(xuan)(xuan)縫(feng)(feng)高(gao)(gao)頻(pin)焊(han)(han)(han)(han)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)。? 9．樁用(yong)(yong)(yong)(yong)(yong)(yong)螺(luo)(luo)旋(xuan)(xuan)(xuan)(xuan)(xuan)焊(han)(han)(han)(han)縫(feng)(feng)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)（SY5040-83）是(shi)(shi)以(yi)(yi)熱(re)軋鋼(gang)(gang)(gang)帶(dai)(dai)卷作(zuo)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)坯(pi)，經常(chang)(chang)溫(wen)螺(luo)(luo)旋(xuan)(xuan)(xuan)(xuan)(xuan)成型(xing)(xing)(xing)(xing)，采用(yong)(yong)(yong)(yong)(yong)(yong)雙(shuang)面埋(mai)弧(hu)焊(han)(han)(han)(han)接(jie)(jie) 或高(gao)(gao)頻(pin)焊(han)(han)(han)(han)接(jie)(jie)制成的(de)，用(yong)(yong)(yong)(yong)(yong)(yong)于土木(mu)建筑(zhu)結構(gou)、碼頭、橋(qiao)梁等基礎樁用(yong)(yong)(yong)(yong)(yong)(yong)鋼(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)