购买方管时最实用的三种方管理论重量计算方法方管的三种理论重量算法：关于方管的重量的计算方法，总共有三种方式。第一种，就是用钢板算法，也就是，将一个正跟的方管展开，然后形成一个四片扁钢，然后在对扁钢进行计算。这种计算方法计算出来的重量，会与…

石家庄方管市场报价稳中调整。市场方面，今日期螺尾盘收尾盘收3266跌20，2001短线区间震荡运行；现货原料带钢带钢较昨回涨10-20，285-355系列高现货裸价 主流3350-3380，期货主流3340-3360；河北主导管厂焊镀管出厂部分跟随上调30，现方管4寸(3.75mm)出厂报价在 3890-4140之间，唐山当地方管市场价3840，目前市场心态不稳，午后现货较开盘报价降10左右。石家庄地区价格早盘暂未调整，近期受价格震荡影 响，补货不积极，不过传言京津冀部分钢厂9月开始限产趋严，观望落实情况为主。预计石家庄地区方管市场将随行波动。

Shijiazhuang Fangguan market quotation is adjusted steadily. On the market side, the end of today's screw-tail closing down 3266, down 20, short-term oscillation operation in 2001; spot raw material strip steel rebounded 10-20, 285-355 series of high spot bare price mainstream 3350-3380, futures mainstream 3340-3360; Hebei leading pipe factory welded and plated pipe factory part followed up by an increase of 30, spot tube 4 inch (3.75mm) ex-factory quotation was 389. Between 0 and 4140, Tangshan local market price 3840, the current market mentality is unstable, afternoon spot price is about 10 lower than the opening offer. Shijiazhuang area's price has not been adjusted in the early trading. Recently, due to price shocks, replenishment is not active. However, rumors have been circulating that some steel mills in Beijing, Tianjin and Hebei began to restrict production in September and wait and see the implementation. It is anticipated that the local management market in Shijiazhuang will fluctuate along with it. 原料方面，今日上游方坯持涨后价3340，现货3380左右含税出库个别有成交；唐山瑞丰355mm系列带钢出厂报价3650，较昨日主流价格上调20元。

In terms of raw materials, the upstream billet price is up 3340 today, and the spot price is about 3380, including tax. The Tangshan Ruifeng 355mm series strip steel ex-factory quotation is 3650, which is 20 yuan higher than the mainstream price yesterday.

价格方面：唐山京华新国标产1.5寸(3.5mm)方管主流价格报价4160元，4 寸(3.75mm)方管主流价格报价4070元，正大(天虹)新国标产6寸(3.25mm)方管主流价格报价4120元。

　　唐山方管市场价格偏强运行厂家情绪趋于谨慎唐山方管市场价格偏强运行。元旦期间央行发布自2020年1月6日起降准0.5个百分点，受此利好消息早间期螺高位开盘，唐山方管现货市场价格也是趋稳偏强窄幅上调了10-30元。盘中期螺震荡下行，方管厂家情绪趋于谨慎，但是因…