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。 鍍鋅管廠家普及專業(ye)鋼(gang)管(guan)知(zhi)識 3.普通(tong)碳素(su)鋼(gang)電(dian)線(xian)套管(guan)（GB3640-88）是工業(ye)與(yu)民(min)用建筑、安(an)(an)裝機器設備等電(dian)氣安(an)(an)裝工程中用于(yu)保護 電(dian)線(xian)的(de)鋼(gang)管(guan)。?

 4.直縫(feng)(feng)(feng)(feng)電焊(han)(han)(han)(han)鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)（YB242-63）是(shi)焊(han)(han)(han)(han)縫(feng)(feng)(feng)(feng)與鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)縱(zong)向平(ping)行的(de)(de)鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)。通常分(fen)為公(gong)制(zhi)電焊(han)(han)(han)(han)鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)、電焊(han)(han)(han)(han)薄(bo)壁管(guan)(guan)(guan)(guan)(guan)、變(bian)壓(ya)(ya)(ya)器冷卻油管(guan)(guan)(guan)(guan)(guan)等(deng)等(deng)。 5.承(cheng)壓(ya)(ya)(ya)流(liu)(liu)體(ti)輸(shu)(shu)送(song)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)螺(luo)(luo)旋(xuan)(xuan)縫(feng)(feng)(feng)(feng)埋(mai)(mai)(mai)弧(hu)焊(han)(han)(han)(han)鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)（SY5036-83）是(shi)以熱(re)軋(ya)鋼(gang)(gang)(gang)(gang)(gang)帶(dai)卷(juan)作(zuo)管(guan)(guan)(guan)(guan)(guan)坯(pi)，經(jing)(jing)常溫(wen)(wen)螺(luo)(luo)旋(xuan)(xuan)成型(xing)，用(yong)(yong)(yong)(yong)(yong)(yong)(yong)雙(shuang)(shuang)面(mian)埋(mai)(mai)(mai)弧(hu)焊(han)(han)(han)(han)法(fa)焊(han)(han)(han)(han)接(jie)，用(yong)(yong)(yong)(yong)(yong)(yong)(yong)于(yu)(yu)承(cheng)壓(ya)(ya)(ya)流(liu)(liu)體(ti)輸(shu)(shu)送(song)的(de)(de)螺(luo)(luo)旋(xuan)(xuan)縫(feng)(feng)(feng)(feng)鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)。鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)口徑(jing)大(da)，輸(shu)(shu)送(song)效率(lv)(lv)高，并可節約鋪設管(guan)(guan)(guan)(guan)(guan)線(xian)的(de)(de)投(tou)(tou)資。主(zhu)要用(yong)(yong)(yong)(yong)(yong)(yong)(yong)于(yu)(yu)輸(shu)(shu)送(song)石(shi)油、天然氣(qi)(qi)(qi)的(de)(de)管(guan)(guan)(guan)(guan)(guan)線(xian)。 6.承(cheng)壓(ya)(ya)(ya)流(liu)(liu)體(ti)輸(shu)(shu)送(song)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)螺(luo)(luo)旋(xuan)(xuan)縫(feng)(feng)(feng)(feng)高頻(pin)(pin)焊(han)(han)(han)(han)鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)（SY5038-83）是(shi)以熱(re)軋(ya)鋼(gang)(gang)(gang)(gang)(gang)帶(dai)卷(juan)作(zuo)管(guan)(guan)(guan)(guan)(guan)坯(pi)，經(jing)(jing)常溫(wen)(wen)螺(luo)(luo)旋(xuan)(xuan)成型(xing)，采(cai) 用(yong)(yong)(yong)(yong)(yong)(yong)(yong)高頻(pin)(pin)搭接(jie)焊(han)(han)(han)(han)法(fa)焊(han)(han)(han)(han)接(jie)的(de)(de)，用(yong)(yong)(yong)(yong)(yong)(yong)(yong)于(yu)(yu)承(cheng)壓(ya)(ya)(ya)流(liu)(liu)體(ti)輸(shu)(shu)送(song)的(de)(de)螺(luo)(luo)旋(xuan)(xuan)縫(feng)(feng)(feng)(feng)高頻(pin)(pin)焊(han)(han)(han)(han)鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)。鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)口徑(jing)大(da)，輸(shu)(shu)送(song)效率(lv)(lv)高，并可節省(sheng)鋪設管(guan)(guan)(guan)(guan)(guan)線(xian)的(de)(de)投(tou)(tou)資。主(zhu)要用(yong)(yong)(yong)(yong)(yong)(yong)(yong)于(yu)(yu)鋪設輸(shu)(shu)送(song)石(shi)油、天然氣(qi)(qi)(qi)等(deng)的(de)(de)管(guan)(guan)(guan)(guan)(guan)線(xian)。? 7.一(yi)般(ban)(ban)低(di)(di)壓(ya)(ya)(ya)流(liu)(liu)體(ti)輸(shu)(shu)送(song)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)螺(luo)(luo)旋(xuan)(xuan)縫(feng)(feng)(feng)(feng)埋(mai)(mai)(mai)弧(hu)焊(han)(han)(han)(han)鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)（SY5037-83）是(shi)以熱(re)軋(ya)鋼(gang)(gang)(gang)(gang)(gang)帶(dai)卷(juan)作(zuo)管(guan)(guan)(guan)(guan)(guan)坯(pi)，經(jing)(jing)常溫(wen)(wen)螺(luo)(luo)旋(xuan)(xuan)成型(xing)，采(cai)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)雙(shuang)(shuang)面(mian)自動埋(mai)(mai)(mai)弧(hu)焊(han)(han)(han)(han)或單面(mian)焊(han)(han)(han)(han)法(fa)制(zhi)成的(de)(de)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)于(yu)(yu)水(shui)、煤(mei)氣(qi)(qi)(qi)、空氣(qi)(qi)(qi)和蒸汽等(deng)一(yi)般(ban)(ban)低(di)(di)壓(ya)(ya)(ya)流(liu)(liu)體(ti)輸(shu)(shu)送(song)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)埋(mai)(mai)(mai)弧(hu)焊(han)(han)(han)(han)鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)。 8.一(yi)般(ban)(ban)低(di)(di)壓(ya)(ya)(ya)流(liu)(liu)體(ti)輸(shu)(shu)送(song)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)螺(luo)(luo)旋(xuan)(xuan)縫(feng)(feng)(feng)(feng)高頻(pin)(pin)焊(han)(han)(han)(han)鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)（SY5039-83）是(shi)以熱(re)軋(ya)鋼(gang)(gang)(gang)(gang)(gang)帶(dai)卷(juan)作(zuo)管(guan)(guan)(guan)(guan)(guan)坯(pi)，經(jing)(jing)常溫(wen)(wen)螺(luo)(luo)旋(xuan)(xuan)成型(xing)， 采(cai)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)高頻(pin)(pin)搭接(jie)焊(han)(han)(han)(han)法(fa)焊(han)(han)(han)(han)接(jie)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)于(yu)(yu)一(yi)般(ban)(ban)低(di)(di)壓(ya)(ya)(ya)流(liu)(liu)體(ti)輸(shu)(shu)送(song)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)螺(luo)(luo)旋(xuan)(xuan)縫(feng)(feng)(feng)(feng)高頻(pin)(pin)焊(han)(han)(han)(han)鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)。? 9．樁(zhuang)(zhuang)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)螺(luo)(luo)旋(xuan)(xuan)焊(han)(han)(han)(han)縫(feng)(feng)(feng)(feng)鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)（SY5040-83）是(shi)以熱(re)軋(ya)鋼(gang)(gang)(gang)(gang)(gang)帶(dai)卷(juan)作(zuo)管(guan)(guan)(guan)(guan)(guan)坯(pi)，經(jing)(jing)常溫(wen)(wen)螺(luo)(luo)旋(xuan)(xuan)成型(xing)，采(cai)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)雙(shuang)(shuang)面(mian)埋(mai)(mai)(mai)弧(hu)焊(han)(han)(han)(han)接(jie) 或高頻(pin)(pin)焊(han)(han)(han)(han)接(jie)制(zhi)成的(de)(de)，用(yong)(yong)(yong)(yong)(yong)(yong)(yong)于(yu)(yu)土(tu)木建筑結構、碼頭、橋(qiao)梁等(deng)基礎樁(zhuang)(zhuang)用(yong)(yong)(yong)(yong)(yong)(yong)(yong)鋼(gang)(gang)(gang)(gang)(gang)管(guan)(guan)(guan)(guan)(guan)