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…

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.

郑州方管价格或震荡偏弱运行较昨日无变化4…方管今日郑州市场方管最新价格行情主流走势表现平稳运行，其中友发无垫杠方管30*30*2.5 Q195-Q235的价格：4400元/吨，价格平稳；友发无垫杠方管40*40*2.5 Q195-Q235的价格：4300元/吨，价格较昨日无变化；友发无垫杠方管50*50*2.5 Q195-Q235的价格：4300元/吨，维持昨日价格。The latest price trend of square tube in Zhengzho… 方管市场价格基本维稳厂家反馈市场出货略有…方管方管市场价格基本维稳。主导市场，北京、天津、上海和广州均以稳为主。期螺夜盘震荡上扬，早盘继续维持高位走势，期螺盘面连涨几日对 现货市场多少还是有所支撑的，所以今日市场价格普遍维稳，基本没有再出现降价的。午后盘面继续高走，不过现货市场整体还是较为平稳。从市场了解到，北京午 后有个别资源小涨，涨后低价资源成…