上海镀锌方管价格尚有支撑厂家出货兑现为主上海镀锌方管价格部分继续连续高靠。市场方面，原料唐山钢坯直发顺畅，仓储现货含税报3270元，原料145mm系列带钢连续成交火爆，另，镀锌费用上涨50元，当地管厂价格有支撑，出厂挂牌 价连续累计上调20-40元。据反…

北京市场方管价格小幅跟涨。今日原料钢坯以及带钢价格一早就出现拉涨，受此带动，北京市场方管价格小幅跟涨，涨幅20元。但据贸易商反馈，今日是“五一”小长假前的最后一 天交易日，市场总体成交不畅，终端采购放慢采购计划，个别公司已经放假。因此总体来看，市场有价无市，五一期间没有期货的指导，价格或报稳为主。

The price of market management in Beijing has been rising slightly. Today, the price of raw material billet and strip steel has risen in the early morning. Driven by this, the price of square pipe in Beijing market has risen slightly, by 20 yuan. However, according to TRADERS'feedback, today is the last day of trading before the May Day holiday. The overall market turnover is not smooth, terminal procurement slows down the procurement plan, and individual companies have taken vacations. Therefore, in general, the market has no market value, no futures guidance during the May Day period, the price or stability of the main.

价格方面：本地1寸(2.5mm)方管价格为4610元(吨价，下同)，4寸(3.75mm)方管价格为4450元(吨价，下同)，6寸(4mm)方管价格为4640元；市场整体报价比昨日上涨20元。

Price: Local 1-inch (2.5mm) square tube price is 4610 yuan (ton price, the same below), 4-inch (3.75mm) square tube price is 4450 yuan (ton price, the same below), 6-inch (4mm) square tube price is 4640 yuan; the overall market price is 20 yuan higher than yesterday.

　　厂家防止方管坯分层的三点措施有时方管坯会出现分层问题，从而导致探伤不合。要预防这一缺陷，我们可以采取以下三点处理措施：(一)优化缓冷时间：优化方管板坯的缓冷工艺，主要针对堆垛温度和堆垛持续时间。轧制钢板厚度不大于80mm钢板热矫直后，在…