今日莱芜镀锌方管价格以涨为主厂家心态尚可…方管今日莱芜镀锌方管价格以涨为主。市场方面，今期螺高位震荡运行，方管厂家心态尚可，但对现货支撑平平。目前本地方管厂家仍以出货为主，然交投平平。华北大幅走高，但高位价格上涨困难重重。目 前下游多按需采购，且库存表现一般，方管价格相对较为坚挺，大体延续目前走势。宏观方面，中汽协发布消息称，根据重…

小口径方管用作炼钢吹氧用管，冶炼吹氧用钢管一般用焊接钢管，规格由3/8寸-2寸八种。用或Q195-Q235钢带制成。为防蚀，有的进行渗铝处理。是在S系列产品基础上研制而成，天津吹氧管，结合了当前电弧炉炼钢的实际需要，耐火度高、消耗量少、操作方便等特点。电弧炉炼钢中输送氧气或其它气体，在电弧炉内熔化并精炼钢铁。

Small caliber square pipe is used as oxygen blowing pipe in steelmaking. Welded steel pipe is generally used for oxygen blowing pipe in steelmaking. The specifications range from 3/8 inch to 2 inch. Made of or Q195-Q235 steel strip. In order to prevent corrosion, some are aluminized. It is developed on the basis of S series products. Tianjin oxygen blowing pipe combines the actual needs of electric arc furnace steelmaking. It has the characteristics of high refractory, low consumption and easy operation. In electric arc furnace steelmaking, oxygen or other gases are transported to melt and refine steel in the electric arc furnace. 小口径方管冶炼吹氧用钢管按焊接方法不同可分为电弧方管、高频或低频电阻方管。电焊钢管用于石油钻采和机械制造业等，可用作水煤气管等，大口径直缝方管用于高压油气输送。吹氧管厂家生产的扩口吹氧管，强度一般比直缝方管高，能用较窄的坯料生产管径较大的方管，还可以用同样宽度的坯料生产管径不同的方管。但是与相同长度的直缝管相比，焊缝长度增加30~100%，而且生产速度较低。因此，较小口径的方管大都采用小口径方管，大口径方管则大多采用螺旋焊。

Small caliber square pipe for oxygen blowing can be divided into arc square pipe, high frequency resistance square pipe or low frequency resistance square pipe according to different welding methods. Welded steel pipes are used in oil drilling and mechanical manufacturing, water gas pipes, etc. Large diameter straight seam square pipes are used for high pressure oil and gas transmission. Oxygen blowing tube manufacturer's enlarged oxygen blowing tube has higher strength than straight slotted square tube. It can produce square tube with bigger diameter with narrower blank, and can also produce tube with different diameter with the same width blank. However, compared with the straight seam pipe of the same length, the length of the weld increases by 30-100%, and the production speed is lower. Therefore, the small diameter square pipe is mostly used, while the large diameter square pipe is mostly spiral welded.

下周南京方管将持续窄幅震荡运行库存量减少…方管南京方管市场价格微跌，市场整体成交一般。“五一”假期过后，期货、原料等上游市场一直处于一个窄幅震荡趋势，因此不 管上游还是下游操作均较为谨慎，虽管厂调价幅度并不大，多数贸易商挺价意愿也较强，但市场需求不佳，出货量一般，市场多数抱着观望态度，对近期市场行情并 不看好。库存方面，整体库存量减少缓慢，销售压力… 上海镀锌方管价格稳中调整成交氛围较为一般…方管上海镀锌方管市场价格稳中震荡。市场方面，尽管早盘期卷持红，但方管厂家多根据自身情况进行调价，现本钢主流规格售价在4560-4580元/吨；又由于近日本地镀锌卷板社会库存开始小 幅增加，但考虑到今年产量明显偏高，这个库存累积的节奏其实是相对缓慢的；此外临近春节，方管市场成交氛围较为一般，方管厂家对后市还是多以出货…