甲類管一般(ban)用普(pu)(pu)通碳素(su)鋼(gang)(gang)Q235、Q235F及普(pu)(pu)通低(di)(di)合金結構鋼(gang)(gang)16Mn焊制，乙類管采用Q235、Q235F、Q195等(deng)鋼(gang)(gang)材焊制，用作低(di)(di)壓力的流體輸送管材螺旋縫(feng)高頻(pin)(pin)焊接(jie)鋼(gang)(gang)管 螺旋縫(feng)高頻(pin)(pin)焊接(jie)鋼(gang)(gang)管，尚(shang)沒統一的產(chan)品標準，一般(ban)采用普(pu)(pu)通碳素(su)鋼(gang)(gang)Q235、Q235F等(deng)鋼(gang)(gang)材制造(zao)。

按用(yong)(yong)(yong)(yong)途分(fen)類(lei)按用(yong)(yong)(yong)(yong)途又分(fen)為一(yi)(yi)般(ban)焊(han)(han)(han)管(guan)(guan)(guan)(guan)、鍍(du)(du)(du)(du)(du)(du)鋅(xin)焊(han)(han)(han)管(guan)(guan)(guan)(guan)、吹(chui)氧(yang)(yang)焊(han)(han)(han)管(guan)(guan)(guan)(guan)、電(dian)線套管(guan)(guan)(guan)(guan)、公制焊(han)(han)(han)管(guan)(guan)(guan)(guan)、托輥管(guan)(guan)(guan)(guan)、深井(jing)泵(beng)管(guan)(guan)(guan)(guan)、汽車用(yong)(yong)(yong)(yong)管(guan)(guan)(guan)(guan)、變壓器管(guan)(guan)(guan)(guan)、電(dian)焊(han)(han)(han)薄壁(bi)管(guan)(guan)(guan)(guan)、電(dian)焊(han)(han)(han)異(yi)型管(guan)(guan)(guan)(guan)和螺(luo)旋焊(han)(han)(han)管(guan)(guan)(guan)(guan)。一(yi)(yi)般(ban)焊(han)(han)(han)管(guan)(guan)(guan)(guan)用(yong)(yong)(yong)(yong)來輸送低(di)壓流體。用(yong)(yong)(yong)(yong)Q195A、Q215A、Q235A鋼(gang)制造。也(ye)可采用(yong)(yong)(yong)(yong)易于焊(han)(han)(han)接的其它軟鋼(gang)制造。鋼(gang)管(guan)(guan)(guan)(guan)要(yao)(yao)進行(xing)(xing)水壓、彎曲、壓扁等實(shi)驗，對(dui)表面質量(liang)有(you)一(yi)(yi)定(ding)(ding)要(yao)(yao)求(qiu)，通常(chang)交(jiao)貨(huo)長(chang)度為4-10m，常(chang)要(yao)(yao)求(qiu)定(ding)(ding)尺（或倍尺）交(jiao)貨(huo)。焊(han)(han)(han)管(guan)(guan)(guan)(guan)的規格(ge)用(yong)(yong)(yong)(yong)公稱口徑(jing)(jing)表示（毫(hao)米或英寸）公稱口徑(jing)(jing)與實(shi)際不同，焊(han)(han)(han)管(guan)(guan)(guan)(guan)按規定(ding)(ding)壁(bi)厚有(you)普通鋼(gang)管(guan)(guan)(guan)(guan)和加厚鋼(gang)管(guan)(guan)(guan)(guan)兩種，鋼(gang)管(guan)(guan)(guan)(guan)按管(guan)(guan)(guan)(guan)端形式又分(fen)帶(dai)(dai)螺(luo)紋和不帶(dai)(dai)螺(luo)紋兩種。鍍(du)(du)(du)(du)(du)(du)鋅(xin)鋼(gang)管(guan)(guan)(guan)(guan)為提(ti)高(gao)鋼(gang)管(guan)(guan)(guan)(guan)的耐腐(fu)蝕(shi)性能(neng)，對(dui)一(yi)(yi)般(ban)鋼(gang)管(guan)(guan)(guan)(guan)（黑管(guan)(guan)(guan)(guan)）進行(xing)(xing)鍍(du)(du)(du)(du)(du)(du)鋅(xin)。鍍(du)(du)(du)(du)(du)(du)鋅(xin)鋼(gang)管(guan)(guan)(guan)(guan)分(fen)熱鍍(du)(du)(du)(du)(du)(du)鋅(xin)和電(dian)鍍(du)(du)(du)(du)(du)(du)鋅(xin)兩種，熱鍍(du)(du)(du)(du)(du)(du)鋅(xin)鍍(du)(du)(du)(du)(du)(du)鋅(xin)層厚，電(dian)鍍(du)(du)(du)(du)(du)(du)鋅(xin)成本(ben)低(di)。吹(chui)氧(yang)(yang)焊(han)(han)(han)管(guan)(guan)(guan)(guan)用(yong)(yong)(yong)(yong)作煉鋼(gang)吹(chui)氧(yang)(yang)用(yong)(yong)(yong)(yong)管(guan)(guan)(guan)(guan)，一(yi)(yi)般(ban)用(yong)(yong)(yong)(yong)小口徑(jing)(jing)的焊(han)(han)(han)接鋼(gang)管(guan)(guan)(guan)(guan)，規格(ge)由3/8寸-2寸八種。用(yong)(yong)(yong)(yong)08、10、15、20或Q195-Q235鋼(gang)帶(dai)(dai)制成。為防蝕(shi)，有(you)的進行(xing)(xing)滲鋁處理。