Rebar representation symbol, what is the rebar symbol

The rebar symbol is shown below

The rebar symbol is derived from the steel number representation method prescribed by the state. The grade of steel is referred to as steel grade, which is the name given to each specific steel product, and is a common language for people to understand steel. China's steel number representation method, according to the national standard "steel product grade representation method" (GB221-79) provisions, using the Chinese pinyin alphabet, chemical element symbols and Arabic numerals combined method representation.

1. The chemical elements in the steel number are represented by international chemical symbols, such as SI, MN, CR, etc. Mixed rare earth elements are denoted by "RE" (or "XT").

2. The product name, use, smelting and pouring method, etc., are generally expressed by the abbreviated letters of Hanyu Pinyin.

3. The content of the main chemical elements in the steel (%) is expressed in Arabic numerals.

The rebar symbol is . Rebar, rebar is a medium-sized building component must be made of steel, China has a certain amount of imports every year. The main producing countries and regions are Japan and Western Europe.

The number of export rebar has increased, and the main domestic export manufacturers are iron and steel enterprises in Beijing, Tianjin, Shanghai, Wuhan, Sichuan, Liaoning and other provinces and cities. The main export areas are Hong Kong, Macao and Southeast Asia.

The geometry of the transverse rib of the imported rebar is mainly an ordinary square thread or an ordinary oblique square thread. The geometry of the transverse rib of domestic rebar mainly includes three types: spiral, herringbone and crescent. The principle of rebar ordering is generally based on the mechanical process performance or mechanical strength index on the basis of meeting the gripping performance requirements required by the engineering design.

Influencing factors of rebar

There are three main factors affecting the change of rebar, one is the cost of production, the other is the relationship between supply and demand, the factors affecting the relationship between supply and demand are more complex, and the third is the speculative factor, which sometimes leads to irrationality or irrationality.

The factors affecting production costs include raw material costs and energy costs, and the factors affecting supply and demand include macroeconomic operation cycles, production and consumption, inventories, and import and export policies.

Rebar is widely used in the construction of civil engineering such as houses, bridges, roads, etc. From highways, railways, bridges, culverts, tunnels, flood control, dams and other public facilities, to the foundations, beams, columns, walls, and slabs of housing construction, rebar is an indispensable structural material. With the deepening of China's urbanization, the vigorous development of infrastructure construction and real estate has a strong demand for rebar.

The symbol represented by the threaded steel bar is " "If you want to use the computer to type this symbol, we can find this symbol in the special symbol in the Sogou input method.

Rebar market status:

From the macro point of view, in 2013, the domestic steel price will be large, China's steel products will be large, because there has been overcapacity, and the main raw material iron ore is also lower.

China's slowing economic growth is dampening demand for steel and iron ore, dragging both commodities to multi-month lows and putting expansion plans of global iron ore producers at risk.

The trend is not expected to change in the coming months due to the overcapacity and slow pace of industry consolidation; At the same time, the problem of iron ore surplus has also increased, indicating that it will continue to decline.

In 2013, coal and coke steel joined forces again, and the trend of steel and steel was aggravated. The reason is also the intensification of the contradiction between supply and demand in the fundamentals of the steel industry chain itself.

In May 2021, non-ferrous and black** rose sharply across the board, and the main force of rebar in the trouser shed closed the daily limit, reporting 6,012 yuan per ton. As a raw material for steel, the main contract of iron ore is also a daily limit and has hit a record high. Hu Ze <>