1, rebar is the common name of hot rolled ribbed bar. The grade of common hot rolled steel bar consists of HRB and the minimum yield point of this grade. H. R and b are the initials of hot-rolled steel bar, ribbed steel bar and steel bar respectively. Steel bars are divided into three grades: Grade II HRB335, Grade III HRB400 and Grade IV HRB500. From a macro point of view, the domestic steel price of 20 13 has fallen sharply, and it will fall sharply, because the problem of overcapacity has always existed, and the price of iron ore, the main raw material, has also fallen.
2. China's slowing economic growth has curbed the country's demand for steel and iron ore, pushed the prices of these two commodities to the lowest point in several months, and put the expansion plans of global iron ore producers at risk. It is expected that the trend will not change in the next few months because of overcapacity and slow industry integration; At the same time, the problem of oversupply of iron ore is getting worse, which indicates that its price will continue to fall. 20 13, coal, coke and steel futures fell again, while the stock market was stable, and the trend of steel futures and the stock market was more differentiated. The reason is that the fundamental contradiction between supply and demand in the steel industry chain itself has intensified.
3. Steel bar import and export steel bar is a kind of steel that must be used for medium-sized and above building components. China imports a certain amount of rebar every year. The main producing countries and regions are Japan and Western Europe. The quantity of export rebar has increased. The main domestic export producers are steel enterprises in Beijing, Tianjin, Shanghai, Wuhan, Sichuan, Liaoning and other provinces and cities. The export areas are mainly Hong Kong, Macao and Taiwan and Southeast Asia. The transverse rib geometry of imported special-shaped steel bars is mainly ordinary square thread or ordinary oblique square thread. The geometric shapes of transverse ribs of special-shaped steel bars in China are mainly spiral, herringbone and crescent. The ordering principle of steel bars is generally based on the mechanical process performance or mechanical strength index on the basis of meeting the requirements of engineering design.
4. China's steel consumption has obvious characteristics of developing countries. Construction and industrial steel accounts for about 90% of the total steel consumption, of which construction steel accounts for 50%. China is in the historical stage of rapid urbanization, and there is a great demand for building steel. As the main building steel, rebar has always occupied a large proportion in China's steel output. Before 2000, the proportion of small profiles (mainly rebar) was around 25%. After 200 1, with the transfer of world manufacturing to China, the proportion of production and sales of plate, pipe and strip increased gradually, while the proportion of construction steel decreased year by year. The consumption of rebar in China increased from 4369 1 10,000 tons to 95510.2 million tons, and the proportion of rebar in steel consumption decreased from 25.8% to10.8%.
5. There are three main factors that affect the price change of rebar: one is the production cost; Second, the relationship between supply and demand, the factors affecting the relationship between supply and demand are more complicated; Third, speculative factors sometimes lead to irrational price rises or falls. The factors that affect the production cost include raw material cost and energy cost. The factors affecting the relationship between supply and demand include macroeconomic operation cycle, output and consumption, inventory and import and export policies.