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(jia)普(pu)及專業(ye)鋼管知識 3.普(pu)通碳素鋼電線(xian)(xian)套管（GB3640-88）是工業(ye)與民用建筑、安裝(zhuang)機器設備等(deng)電氣(qi)安裝(zhuang)工程中用于保護 電線(xian)(xian)的鋼管。?

 4.直縫(feng)(feng)電(dian)(dian)焊(han)(han)(han)(han)(han)(han)鋼(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)（YB242-63）是(shi)(shi)焊(han)(han)(han)(han)(han)(han)縫(feng)(feng)與鋼(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)縱向平行的(de)(de)(de)鋼(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)。通常(chang)分為公制電(dian)(dian)焊(han)(han)(han)(han)(han)(han)鋼(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)、電(dian)(dian)焊(han)(han)(han)(han)(han)(han)薄壁(bi)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)、變(bian)壓(ya)(ya)(ya)(ya)器(qi)冷卻油管(guan)(guan)(guan)(guan)(guan)(guan)(guan)等(deng)(deng)等(deng)(deng)。 5.承(cheng)壓(ya)(ya)(ya)(ya)流(liu)(liu)體(ti)(ti)輸(shu)(shu)送(song)用(yong)(yong)(yong)(yong)(yong)(yong)螺(luo)(luo)旋(xuan)(xuan)(xuan)縫(feng)(feng)埋(mai)(mai)弧焊(han)(han)(han)(han)(han)(han)鋼(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)（SY5036-83）是(shi)(shi)以(yi)熱(re)軋鋼(gang)帶(dai)卷(juan)作(zuo)(zuo)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)坯(pi)，經(jing)(jing)常(chang)溫(wen)(wen)(wen)螺(luo)(luo)旋(xuan)(xuan)(xuan)成(cheng)(cheng)型(xing)(xing)，用(yong)(yong)(yong)(yong)(yong)(yong)雙面埋(mai)(mai)弧焊(han)(han)(han)(han)(han)(han)法焊(han)(han)(han)(han)(han)(han)接(jie)(jie)(jie)，用(yong)(yong)(yong)(yong)(yong)(yong)于(yu)承(cheng)壓(ya)(ya)(ya)(ya)流(liu)(liu)體(ti)(ti)輸(shu)(shu)送(song)的(de)(de)(de)螺(luo)(luo)旋(xuan)(xuan)(xuan)縫(feng)(feng)鋼(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)。鋼(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)口徑(jing)(jing)大(da)，輸(shu)(shu)送(song)效率(lv)高(gao)(gao)，并可節約鋪設(she)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)線(xian)的(de)(de)(de)投資(zi)。主要用(yong)(yong)(yong)(yong)(yong)(yong)于(yu)輸(shu)(shu)送(song)石油、天然氣(qi)的(de)(de)(de)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)線(xian)。 6.承(cheng)壓(ya)(ya)(ya)(ya)流(liu)(liu)體(ti)(ti)輸(shu)(shu)送(song)用(yong)(yong)(yong)(yong)(yong)(yong)螺(luo)(luo)旋(xuan)(xuan)(xuan)縫(feng)(feng)高(gao)(gao)頻(pin)焊(han)(han)(han)(han)(han)(han)鋼(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)（SY5038-83）是(shi)(shi)以(yi)熱(re)軋鋼(gang)帶(dai)卷(juan)作(zuo)(zuo)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)坯(pi)，經(jing)(jing)常(chang)溫(wen)(wen)(wen)螺(luo)(luo)旋(xuan)(xuan)(xuan)成(cheng)(cheng)型(xing)(xing)，采 用(yong)(yong)(yong)(yong)(yong)(yong)高(gao)(gao)頻(pin)搭(da)接(jie)(jie)(jie)焊(han)(han)(han)(han)(han)(han)法焊(han)(han)(han)(han)(han)(han)接(jie)(jie)(jie)的(de)(de)(de)，用(yong)(yong)(yong)(yong)(yong)(yong)于(yu)承(cheng)壓(ya)(ya)(ya)(ya)流(liu)(liu)體(ti)(ti)輸(shu)(shu)送(song)的(de)(de)(de)螺(luo)(luo)旋(xuan)(xuan)(xuan)縫(feng)(feng)高(gao)(gao)頻(pin)焊(han)(han)(han)(han)(han)(han)鋼(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)。鋼(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)口徑(jing)(jing)大(da)，輸(shu)(shu)送(song)效率(lv)高(gao)(gao)，并可節省(sheng)鋪設(she)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)線(xian)的(de)(de)(de)投資(zi)。主要用(yong)(yong)(yong)(yong)(yong)(yong)于(yu)鋪設(she)輸(shu)(shu)送(song)石油、天然氣(qi)等(deng)(deng)的(de)(de)(de)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)線(xian)。? 7.一般(ban)低壓(ya)(ya)(ya)(ya)流(liu)(liu)體(ti)(ti)輸(shu)(shu)送(song)用(yong)(yong)(yong)(yong)(yong)(yong)螺(luo)(luo)旋(xuan)(xuan)(xuan)縫(feng)(feng)埋(mai)(mai)弧焊(han)(han)(han)(han)(han)(han)鋼(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)（SY5037-83）是(shi)(shi)以(yi)熱(re)軋鋼(gang)帶(dai)卷(juan)作(zuo)(zuo)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)坯(pi)，經(jing)(jing)常(chang)溫(wen)(wen)(wen)螺(luo)(luo)旋(xuan)(xuan)(xuan)成(cheng)(cheng)型(xing)(xing)，采用(yong)(yong)(yong)(yong)(yong)(yong)雙面自動埋(mai)(mai)弧焊(han)(han)(han)(han)(han)(han)或(huo)單面焊(han)(han)(han)(han)(han)(han)法制成(cheng)(cheng)的(de)(de)(de)用(yong)(yong)(yong)(yong)(yong)(yong)于(yu)水、煤氣(qi)、空氣(qi)和蒸汽等(deng)(deng)一般(ban)低壓(ya)(ya)(ya)(ya)流(liu)(liu)體(ti)(ti)輸(shu)(shu)送(song)用(yong)(yong)(yong)(yong)(yong)(yong)埋(mai)(mai)弧焊(han)(han)(han)(han)(han)(han)鋼(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)。 8.一般(ban)低壓(ya)(ya)(ya)(ya)流(liu)(liu)體(ti)(ti)輸(shu)(shu)送(song)用(yong)(yong)(yong)(yong)(yong)(yong)螺(luo)(luo)旋(xuan)(xuan)(xuan)縫(feng)(feng)高(gao)(gao)頻(pin)焊(han)(han)(han)(han)(han)(han)鋼(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)（SY5039-83）是(shi)(shi)以(yi)熱(re)軋鋼(gang)帶(dai)卷(juan)作(zuo)(zuo)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)坯(pi)，經(jing)(jing)常(chang)溫(wen)(wen)(wen)螺(luo)(luo)旋(xuan)(xuan)(xuan)成(cheng)(cheng)型(xing)(xing)， 采用(yong)(yong)(yong)(yong)(yong)(yong)高(gao)(gao)頻(pin)搭(da)接(jie)(jie)(jie)焊(han)(han)(han)(han)(han)(han)法焊(han)(han)(han)(han)(han)(han)接(jie)(jie)(jie)用(yong)(yong)(yong)(yong)(yong)(yong)于(yu)一般(ban)低壓(ya)(ya)(ya)(ya)流(liu)(liu)體(ti)(ti)輸(shu)(shu)送(song)用(yong)(yong)(yong)(yong)(yong)(yong)螺(luo)(luo)旋(xuan)(xuan)(xuan)縫(feng)(feng)高(gao)(gao)頻(pin)焊(han)(han)(han)(han)(han)(han)鋼(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)。? 9．樁(zhuang)用(yong)(yong)(yong)(yong)(yong)(yong)螺(luo)(luo)旋(xuan)(xuan)(xuan)焊(han)(han)(han)(han)(han)(han)縫(feng)(feng)鋼(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)（SY5040-83）是(shi)(shi)以(yi)熱(re)軋鋼(gang)帶(dai)卷(juan)作(zuo)(zuo)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)坯(pi)，經(jing)(jing)常(chang)溫(wen)(wen)(wen)螺(luo)(luo)旋(xuan)(xuan)(xuan)成(cheng)(cheng)型(xing)(xing)，采用(yong)(yong)(yong)(yong)(yong)(yong)雙面埋(mai)(mai)弧焊(han)(han)(han)(han)(han)(han)接(jie)(jie)(jie) 或(huo)高(gao)(gao)頻(pin)焊(han)(han)(han)(han)(han)(han)接(jie)(jie)(jie)制成(cheng)(cheng)的(de)(de)(de)，用(yong)(yong)(yong)(yong)(yong)(yong)于(yu)土木建(jian)筑結構、碼頭、橋(qiao)梁等(deng)(deng)基礎樁(zhuang)用(yong)(yong)(yong)(yong)(yong)(yong)鋼(gang)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)