355B鋼(gang)管(guan)(guan)(guan)(guan)品種(zhong),Q355B鋼(gang)管(guan)(guan)(guan)(guan)采用(yong)(yong)(yong)(yong)(yong)的(de)是鋼(gang)板或帶(dai)鋼(gang)，因其(qi)焊(han)(han)(han)(han)(han)(han)接(jie)工藝不(bu)同而(er)分(fen)為爐焊(han)(han)(han)(han)(han)(han)管(guan)(guan)(guan)(guan)、電焊(han)(han)(han)(han)(han)(han)(電阻(zu)焊(han)(han)(han)(han)(han)(han))管(guan)(guan)(guan)(guan)和(he)(he)自(zi)動電弧焊(han)(han)(han)(han)(han)(han)管(guan)(guan)(guan)(guan)。因其(qi)焊(han)(han)(han)(han)(han)(han)接(jie)形(xing)式的(de)不(bu)同分(fen)為直縫(feng)焊(han)(han)(han)(han)(han)(han)管(guan)(guan)(guan)(guan)和(he)(he)螺旋焊(han)(han)(han)(han)(han)(han)管(guan)(guan)(guan)(guan)兩種(zhong)。因其(qi)端部形(xing)狀又分(fen)為圓形(xing)焊(han)(han)(han)(han)(han)(han)管(guan)(guan)(guan)(guan)和(he)(he)異型(方(fang)、扁等)焊(han)(han)(han)(han)(han)(han)管(guan)(guan)(guan)(guan)。焊(han)(han)(han)(han)(han)(han)管(guan)(guan)(guan)(guan)因其(qi)材(cai)(cai)(cai)(cai)質(zhi)和(he)(he)用(yong)(yong)(yong)(yong)(yong)途不(bu)同而(er)分(fen)為如下若(ruo)干品種(zhong):GB/T3091-2008(低(di)壓流體輸(shu)送(song)用(yong)(yong)(yong)(yong)(yong)焊(han)(han)(han)(han)(han)(han)接(jie)鋼(gang)管(guan)(guan)(guan)(guan)):主(zhu)要用(yong)(yong)(yong)(yong)(yong)于(yu)輸(shu)送(song)水、煤氣(qi)、空氣(qi)、油和(he)(he)取暖熱水或蒸汽等一般較低(di)壓力流體和(he)(he)其(qi)它用(yong)(yong)(yong)(yong)(yong)途管(guan)(guan)(guan)(guan)。其(qi)代(dai)表材(cai)(cai)(cai)(cai)質(zhi)為:Q23 級鋼(gang)。GB/T14291-2006(礦(kuang)用(yong)(yong)(yong)(yong)(yong)流體輸(shu)送(song)焊(han)(han)(han)(han)(han)(han)接(jie)鋼(gang)管(guan)(guan)(guan)(guan)):主(zhu)要用(yong)(yong)(yong)(yong)(yong)于(yu)礦(kuang)山(shan)壓風、排水、軸放瓦(wa)斯用(yong)(yong)(yong)(yong)(yong)直縫(feng)焊(han)(han)(han)(han)(han)(han)接(jie)鋼(gang)管(guan)(guan)(guan)(guan)。其(qi)代(dai)表材(cai)(cai)(cai)(cai)質(zhi)Q23 、B級鋼(gang)。GB/T12770-2002(機(ji)械(xie)結(jie)構(gou)用(yong)(yong)(yong)(yong)(yong)不(bu)銹(xiu)鋼(gang)焊(han)(han)(han)(han)(han)(han)接(jie)鋼(gang)管(guan)(guan)(guan)(guan)):主(zhu)要用(yong)(yong)(yong)(yong)(yong)于(yu)機(ji)械(xie)、汽車、自(zi)行車、家具(ju)、賓館和(he)(he)飯店裝飾及其(qi)他機(ji)械(xie)部件與結(jie)構(gou)件。其(qi)代(dai)表材(cai)(cai)(cai)(cai)質(zhi)0Cr13、00Cr19Ni11、1Cr18Ni9、0Cr18Ni11Nb等。GB/T12771-1991(流體輸(shu)送(song)用(yong)(yong)(yong)(yong)(yong)不(bu)銹(xiu)鋼(gang)焊(han)(han)(han)(han)(han)(han)接(jie)鋼(gang)管(guan)(guan)(guan)(guan)):主(zhu)要用(yong)(yong)(yong)(yong)(yong)于(yu)輸(shu)送(song)低(di)壓腐(fu)蝕性介質(zhi)。代(dai)表材(cai)(cai)(cai)(cai)質(zhi)為、0Cr19Ni9、00Cr19Ni11、0017Cr17Ni14Mo2等。

 現貨市場(chang)(chang)價(jia)格(ge)普(pu)漲，螺(luo)線成交情況較好，終端采購積極(ji)，部(bu)分地區資源規格(ge)缺貨一定程度影響(xiang)銷售，華東地區有封盤(pan)的操(cao)作，有意控制出(chu)(chu)貨節奏。板材出(chu)(chu)貨一般偏好，比前期(qi)成交轉好，前期(qi)資源主要是在貿易商之間流轉，目前終端有入場(chang)(chang)采購的現象，鋼廠接單量整體較好。

    今日(ri)重磅經(jing)濟數(shu)據落地(di)，統計局數(shu)據顯示，10月規模以上工業增(zeng)(zeng)加(jia)值同(tong)(tong)比(bi)增(zeng)(zeng)長4.7%，遠低于市(shi)場(chang)(chang)(chang)預(yu)期(qi)(qi)的(de)(de)5.4%；1-10月固定資產投資同(tong)(tong)比(bi)增(zeng)(zeng)長5.2%，與市(shi)場(chang)(chang)(chang)預(yu)期(qi)(qi)的(de)(de)5.4%亦降低0.2個百(bai)分點。但房(fang)(fang)地(di)產數(shu)據表現較(jiao)好，超出了市(shi)場(chang)(chang)(chang)預(yu)期(qi)(qi)，1—10月份(fen)，商品房(fang)(fang)銷售面積同(tong)(tong)比(bi)增(zeng)(zeng)長0.1%，是今年以來首次由負轉正(zheng)。房(fang)(fang)地(di)產開(kai)發(fa)企業房(fang)(fang)屋施工面積同(tong)(tong)比(bi)增(zeng)(zeng)長9.0%，增(zeng)(zeng)速加(jia)快0.3個百(bai)分點，說(shuo)明房(fang)(fang)地(di)產市(shi)場(chang)(chang)(chang)并沒有(you)想象中的(de)(de)差(cha)，反(fan)而(er)在年底趕工及沖(chong)業績的(de)(de)情況下韌性十足，給(gei)予市(shi)場(chang)(chang)(chang)一定希望。