One of the biggest purchases of steel products is TMT steel bars and a 12 mm steel rod which is imported and exported in various countries worldwide. The strength of the steel products especially TMT steel bars and steel rods are very important to all people. Today, polymer rebars are widely used in the construction of composite structures due to their high strength and low weight. One way to deal with the problem of corrosion in steel-reinforced concrete is to use composite rebars. In this study, composite rebars with three different surface geometries were prepared and studied. These shapes include creating a tread on a pultruded rod using a screw of resin-impregnated continuous fibers, spraying sand on the rod surface using a resin binder, and combining the two methods. In order to compare, the rod with a flat surface was also used in the experiments. To evaluate the adhesion of rebars to concrete, rebars with placement lengths (12 cm) 10 and 15 times the diameter of the rebar root (18 cm) were placed in cylindrical concrete foundations and the force required to pull them out and the force-displacement behavior were investigated. 
The results show that increasing the roughness by any method has a positive effect on increasing the adhesion of rebars to concrete. Rebars with smooth surfaces without tread have the lowest adhesion strength, then rebar with twisted tread and rebars with twisted tread and sanded (double tread) are placed in the next relationship. The amount of adhesion strength of ribbed rebars is a function of the amount of adhesion of the tread to the core of the pulverized rebar. Also, during 12 cm placement, rebars with double tread have better adhesion to concrete. However, during the 18cm placement, the performance of the double-tipped rebar and the simply twisted tread rebar is close to each other, and the adhesive force of the reel tread rebar is slightly higher than that of the double-tiled rebar. In all cases, simple sandblasting and simple twisting surfaces are detached from the core of the rebar during the extraction test. In general, the performance of double-thread rebars in adhesion to concrete was evaluated better than other rebars.
Steel Price Today per KG
Steel price today per kg is the way but selling and buying it is always happening in Tons. Because of the packaging and bundles of steel products every purchase starts from 100 tons. The price of steel depends on various factors such as the composition, dimensions, and supplier of the steel. By changing the percentage of elements, their composition is different and as a result, the price of steel also changes. Phosphorus and sulfur are expensive elements that are used in small amounts in steel. By changing the composition of steel, its use and properties are different and one of the influential factors in the price of steel is its use and properties. The dimensions of steels in steel rebars, belts, sheets, pipes, and profiles in some cases cause a change in their unit price due to the complexity of their production. In some steel, the price of that steel varies in sheets and rebars. In rebars in large sizes, the price of steel increases. 
Dosage of different types of sheets, sheets that are less than 1mm thick have a significant price increase. Currently, depending on the price of the currency, a steel product in one dimension may differ from the same steel in the same dimensions due to the difference in the time of purchase and the price of the currency, especially in countries that have a lower currency rate. Another factor is the increase in the price of steel made by the same manufacturer. European producers such as Germany, Italy, and Ukraine are among the countries whose steel is of high quality and price. India, China, and Iran are also steel producers that the Chinese have made great efforts in recent years to improve the quality of their products.
Steel Rate per Ton Today
The steel rate per ton today has an enormous effect on the market globally. In the recent past, world prices for iron and steel have affected the domestic market of other countries. How this affects the price of raw materials to finished steel such as rebars, sheets and profiles depend on various factors. As Artane Press analysts mentioned in 2020, expecting China's steel demand to grow as the corona era and overtake other countries in improving post-corona markets will also increase global iron and steel prices. 
Tata Steel Rod Price Today
Tata steel rod is one of the best and biggest companies, producing and manufacturing steel rods and steel products and the price today is among the most expensive prices. On the other hand, world steel production is estimated at 1.8 billion tons, of which approximately 55% occurs in China. India is in second place with a production rate of about 6% and Japan is in third place with no large mines. After the start of the Russia-Ukraine war, the price of a ton of HRC steel rose to $ 858. TMT rods also reached about $ 845 per ton. After the Russian invasion of Ukraine, disruptions in the supply of goods such as wheat, soybeans, fertilizers, and metals such as copper, steel, and aluminum affected their prices and raised concerns about economic recovery. India's PTI news agency said in a report that Indian steelmakers have raised the price of hot rolled coils or HRCs, and TMT rods, to $ 65 per ton because the supply chain has been affected by the Russia-Ukraine conflict. According to the report, the prices of the above-mentioned goods have increased in the past few days, and these prices are expected to increase again in the coming weeks as the crisis between the two countries intensifies. 
Analysts at Motilal Oswald believe that Russian sanctions will affect the prices of aluminum, nickel, steel, and thermal coal. India is an exporter of pure aluminum, and the agency believes that companies such as Hindalco, the National Aluminum Company (Nalco), and Vedanta will benefit from the increase in aluminum prices. While Indian coal will be the biggest beneficiary of the renewed demand for coal, Tata Steel is likely to be the biggest beneficiary of any increase in steel prices in the European Union.
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