北京镀锌方管短期或仍保持维稳运行节奏厂家…方管今日北京镀锌方管价格暂稳，据悉，目前市场资源基本齐全，前期20mm资源紧缺近期得到补充，价格在3630左右。不过市场仍有一些方管厂家报价相对较高，价格达到3600元以上。大户出货维持在100吨左右，镀锌方管到货仍以敬业资源居多，天钢复产不久，资源大范围流通尚需一定时间。而镀锌方管今年整体表现要强于卷板…

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.

大同镀锌方管价格多以窄幅调整为主成交表现…方管今日开市大同镀锌方管市场价格略有下调。今日期螺低位震荡，市场成交表现一般，随着方管厂家下调镀锌方管出厂价格，致使今日早盘大同市场价格略有走低。另 外从市场了解到，由于近期钢厂价格调整，大同市场各方管厂家回货多以东华和鑫达资源为主。就眼下来看，考虑到大同市场特殊性，资源多以外围资源为主，加之方管厂家 方面… 国内方管价格或仍以维稳为主厂家维持成本价…方管方管市场价格继续持稳。早盘，期货价格趋弱，方管现货各地价格普遍观望，市场出货情况一般。据悉，目前市场大户库存在5千到1万吨，出货在500吨左右。据悉，东北地区 钢厂近日已经出台结算价格政策，方管厂家维持成本价。华北华南地区钢厂也结算在即，不排除价格有松动倾向。据悉，目前市场方管库存量仍然不大，基本是到一车卖…