国内方管市场价格或易跌难涨以弱势维稳为主…方管方管市场价格基本维稳。今日开市，黑色系市场窄幅下行，方管现货基本持稳。由于利多因素有限，市场价格大幅上涨可能性不大，虽然目前钢材库存相对低位，但市场实际需求及 钢材用量较往月有所下降，叠加采购端谨慎操作，按需为主，因此价格拉涨相对不易。另外，成本方面矿石焦炭走势亦偏弱，且成交不佳，对价格…

作为一个生产方管的厂家要对方管的各个工艺流程、钢管材质性能有足够的掌握，在客户订购焊管的时候方管和矩形管是客户的选择对象。我们多次提到方管和矩形管的优劣，方管在生产过程中只有管端的尺寸是最严格的的，毕竟方管不同于矩形管，所以在生产方管的时候要注意把口径和管端做到最好，以便于在安装焊接过程中能够方便快捷的施工。对于生产大口径钢管壁厚较薄的钢管的时候要注意加固或者对钢管做支架，以防止方管在运输过程中出现椭圆或口径变形。对于方管来说口径的准确尺寸是最重要的，其次要注意的是方管焊口不要咬边，要把卷制好的钢管的两个焊边对齐对平，焊接出来的钢管才能漂亮、规范。其次要注意的是方管的直度，方管的直度不但影响方管整体的外观最主要的是影响后期施工焊接。

As a manufacturer of square pipe, we should have a good command of each process and material properties of square pipe. When customers order welded pipe, square pipe and rectangular pipe are the customers'choices. We have repeatedly mentioned the merits and demerits of square and rectangular pipes. In the production process, only the pipe end size is the most stringent. After all, square pipes are different from rectangular pipes. Therefore, we should pay attention to the best caliber and pipe end when producing square pipes so as to facilitate the installation and welding process. For the production of large diameter steel pipe with thinner wall thickness, attention should be paid to strengthening or bracketing steel pipe to prevent ellipse or caliber deformation of square pipe during transportation. For square pipe, the exact size of the caliber is the most important. Next, we should pay attention to the square pipe weld without undercutting. We should align the two weld edges of the rolled steel pipe, so that the welded steel pipe can be beautiful and standard. Secondly, attention should be paid to the straightness of square pipes. The straightness of square pipes not only affects the overall appearance of square pipes, but also affects the later construction welding. 

国内方管或将震荡整理厂家成交量逐步增加方管国内方管稳中上行，今日小口径方管主流企业持稳运行。市场还未稍作反应，个别厂家率先追涨20元/吨，这对整个成品材市场产生了不小的刺激，小口径方管成交量逐步增加，加之 期货高开的趋势，因此造成了整个市场的活跃局面，小口径方管企业整体成交放量，部分企业出清日产。唐山窄带涨10、中宽带主流钢厂持稳。今期螺高开震荡趋… 沧州方管市场价格平稳下降可能性不大方管沧州方管市场价格平稳。据了解巨能厂家本月24日停产检修。上周五期螺夜盘震荡走高，方坯周末拉涨40元，在期螺和钢坯的带动下，整体市场提振氛围有所回暖，据了解，周 末管坯成交较好，今日，管坯及各方管厂家价格报价以稳为主，下游市场价格主要以稳中盘整运行。大体来看整体市场在一个区间内震荡趋强运行，近期整体无缝 管下…