2018-08-09
Development history and practical application of steel straight seam steel pipe
Steel tube structures were originally used for offshore or offshore structures, such as offshore platform structures. At that time, people knew little about the performance of welded steel pipe joints. It was not until 1947 that the world's first modern offshore platform was built in the Gulf of Mexico that people really realized the superiority of steel pipes as structural components, thus prompting people to begin to explore the performance of steel pipe structures.
2018-08-09
High frequency straight seam welded steel pipe and submerged arc welded straight seam steel pipe are a kind of straight seam steel pipe, its name comes from the form of weld. Straight seam steel pipe is a steel pipe whose weld is parallel to the longitudinal direction of the steel pipe.
2018-08-09
Simple elaboration of welded pipe development history
The blank used for welded steel pipe is steel plate or strip steel, which is divided into furnace welded pipe, electric welding (resistance welding) pipe and automatic arc welded pipe due to different welding processes. Because of its welding form is divided into two kinds of straight seam welded pipe and spiral welded pipe. Because of its end shape is divided into circular welded pipe and special-shaped (square, flat, etc.) welded pipe.
2018-08-09
2014 China Steel Structure Association Steel Pipe Branch Secretary-General's Working Meeting Held
The working meeting of the Secretary General of the Steel Pipe Branch of the China Steel Structure Association and the study and exchange seminar were held in Fengxian, Shanghai from June 20 to June 21. The conference was hosted by the Steel Pipe Branch of China Steel Structure Association and hosted by Shanghai Tianyang Steel Pipe Co., Ltd.
2018-08-09
China stainless steel products September 1-September 29 market quotation update table
China stainless steel products September 1-September 29 market quotation update table
2018-08-09
September 2015 stainless steel market price trend prediction
In August, the domestic economic situation continued to turn worse, the PMI index hit a new low, and market confidence was seriously frustrated. At the same time, China's active devaluation of its currency in response to the U.S. or September rate hike caused LME nickel to fall below the 10,000 yuan mark instantly on the same day. Subsequently, A shares continued to fall by the limit, and the pessimistic atmosphere was strong. Finally, on September 24, the closing price of LME nickel fell to 9520 US dollars/ton, and the end of August fell by 13.81 from the end of July.
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