方管市场价格稳中有降厂家反馈出货一般方管方管市场价格稳中有降。主导市场，北京、天津、上海、广州均出现下降。期螺夜盘保持了高位走势，不过早盘在多头强势发力后开始走弱， 消息面没有新的利好支撑，盘面走势不佳，所以今日开市，市场价格稳中有降。午后盘面低位震荡，没有继续下行，但现货市场却持续走弱。从市场了解到，北京午 后追降20-30，螺纹…

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.

武汉镀锌方管价格弱势运行为主厂家心态偏空…方管武汉镀锌方管市场价格暂稳，市场方面，本地轻度污染影响下游工地施工节奏，目前镀锌方管市场进入累库阶段，方管厂家心态偏空，现管厂价格偏高，方管厂家备货意愿较低。近期暂无刺激市场的消息支撑，方管厂家积极性不高，预计短期本地市场镀锌方管价格弱势运行为主。原料方面：昌黎部分钢坯执行明早结算价3300元，较昨降20元；… 上海方管市场价格或震荡偏弱成交表现不如人…方管本周上海方管市场价格震荡下行。现货方面，近日市场较为乏力，方管厂家信心不足，开另外现在外围市场价格也是跌跌不 休，整个钢市情绪不佳，成交上表现不如人意。主要是价格的连番下调之下，终端商户观望居多。总之在当前钢市环境下，钢企均谨慎，随着社会库存的累积，市场 看空心态加剧，认为价格还要再下跌点。货场里进出卡…