乐从方管主流价格或稳中震荡厂家出货心态为主今日乐从方管价格偏弱调整，市场方面，唐山钢坯涨20报3330元/吨含税出厂，期卷偏弱震荡，市场出货心态为主，今乐从方管偏弱调整，主流规格价格在3680元/吨，现与天津主流规格报价相差0元/吨，与上海主流报价相差…

长沙方管市场价格均涨20元。今日市场价格持续上扬，成交仍有一定放量，低价资源出货尚可，整体以出货为主，回笼资金意识较强，市场商家也推断经过前期的大跌行情，近期也会持 续小涨，倒挂现象已经消失，砍货情况逐渐出现在市场，谨慎心态仍存在，午后唐山、昌黎方坯资源稳，现普碳方坯含税出厂3380，较昨日涨20元，期螺持红 高靠，双重提振，市场心态较为乐观，预计明日长沙方管市场价格稳或小幅上调。

The market price of Changsha Fangguan increased by 20 yuan. Today's market prices continue to rise, trading volume is still a certain amount, low-cost resources shipment is still acceptable, the overall delivery-oriented, a strong sense of withdrawal funds, market businessmen also infer that after the previous slump market, the near future will continue to rise slightly, hang upside down phenomenon has disappeared, hacking situation gradually appeared in the market, cautious attitude still exists. In the afternoon, Tangshan and Changli billet resources are stable, and the current carbon billet manufactured with tax is 3380, up 20 yuan from yesterday. It is expected that the market price of Changsha square tube will rise steadily or slightly tomorrow. 方管价格方面：长沙方管市场萍钢产Φ6-10mm高线市场价格为4060元；萍钢产 Φ18-22螺纹市场价格为3930元；冷钢产Φ18-22螺纹市场价格为3930元；鄂钢产Φ18-22螺纹市场价格为3900元；冷钢产 Φ8-10mm盘螺市场价格为4150元，以上价格均涨20元。

As for square pipe price, the market price of Pinggang 6-10mm high-speed line in Changsha square pipe market is 4060 yuan; the market price of Pinggang 18-22 thread is 3930 yuan; the market price of cold steel 18-22 thread is 3930 yuan; the market price of Egang 18-22 thread is 3900 yuan; the market price of cold steel 8-10mm plate screw is 4150 yuan, and the above prices are increased by 20 yuan. Yuan.

　　方管和矩形管冷弯成型时不同的特点冷弯方管、冷弯矩形管是通过外辊与管坯外壁的单向接触形成弯矩使带料弯折,冷弯会使弯折线产生压缩,压缩效应使弯折线纵向伸长,弯折处金属出现堆积变厚,这就是冷弯的压缩/增厚效应。Cold-formed square pipe and cold-f…