Cangzhou Youcheng Pipe Industry Co., Ltd., always adhering to the "virtue-oriented, quality first" business philosophy and "customer first, Dexing Factory" business purposes, is a large-scale alloy steel pipe, pipe fittings supply base in Hebei Province.
Submerged arc welded coil is a spiral seam steel pipe welded by strip steel coil as raw material, often temperature extruded, and welded by automatic double-wire double-sided submerged arc welding process. The characteristics of submerged arc welded pipe: the production process of straight seam welded pipe is simple, the production efficiency is high, the cost is low, and the development is fast. The strength of spiral welded pipe is generally higher than that of longitudinal welded pipe, and it can produce welded pipe with a large diameter with a narrower blank, and can also use the same width blank to produce welded pipe with different pipe diameters. However, compared with the same length of straight seam pipe, the weld length is increased by 30 to 100%, and the production speed is lower. Therefore, most of the welded pipes of smaller diameters use straight seam welding, and most of the large diameter welded pipes use spiral welding.
On October 13, the long timber index was reported at 87.09 points, up 0.06% from the previous session. Today's snail 1601 afternoon low shock, closed at 1838 yuan / ton down 0.86%, shrinking to increase the position. On the same day, the price consolidation of the national construction steel market was strong, and the price of rebar in most markets such as Hefei, Fuzhou, Guangzhou, Wuhan, Shenyang, Chongqing and other markets rose slightly by 10-30 yuan / ton. However, after the market quotation was raised, the transaction of high-priced resources was blocked, and the downstream demand did not improve substantially. At the same time, in September, China imported 86.12 million tons of iron ore, the supply pressure of the iron ore market increased, the price of imported ore rose weakly, and the price of Tangshan steel billet fell by 20 yuan / ton in the afternoon, weakening the support for steel prices. Due to the relatively sufficient overall resources of the market, some merchants have poor transactions, and the market quotations in Tianjin, Hangzhou and other places have dropped or loosened. It is expected that the price of the construction steel market will be consolidated tomorrow, and the rebound momentum may still be insufficient. On the 13th, the price of hrb400 (20mm) rebar in 25 major markets across the country was reported at 2098 yuan / ton, up 5 yuan / ton from the previous trading day.