博文

Sustainability Indicators Report

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Sustainability Indicators Report  The world steel association released the 2022 edition of the Sustainability Indicators Report, which uses 8 indicators to measure the performance of the global steel industry in the 2021 fiscal year (the division of fiscal years in different countries and regions is slightly different) in terms of economy, environment and society. In terms of environmental performance, in fiscal year 2021, the carbon dioxide emission intensity of the iron and steel industry is 1.91 tons of carbon dioxide/ton of steel, the energy intensity is 21.31 GJ/ton of steel, and the raw material utilization efficiency is 97.34%. In terms of social performance, in fiscal year 2021, the lost time injury rate in the iron and steel industry is 0.81 work-related injuries/million working hours, and the employee training rate is 6.71 training days/employee. In terms of economic benefits, in fiscal year 2021, the proportion of investment in new processes and new products in the iron ...

The latest ranking of the world's major steel producing countries

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The latest ranking of the world's major steel producing countries The World Iron and Steel Association announced the latest ranking of the world's 40 major steel-producing countries (regions) in 2022. China ranked first with 1.013 billion tons of crude steel production (a year-on-year decrease of 2.1%), and India (124.7 million tons, a year-on-year increase of 5.5%) ranked first. Second, Japan (89.2 million tons, down 7.4% year-on-year) ranked third, the United States (80.7 million tons, down 5.9% year-on-year) ranked fourth, and Russia (71.5 million tons, down 7.2% year-on-year) ranked fifth . In 2022, global crude steel production will be 1.8785 billion tons, a year-on-year decrease of 4.2%. According to the ranking, among the world's top 40 steel-producing countries (regions) in 2022, 30 countries' crude steel production will decline year-on-year. Among them, in 2022, Ukraine's crude steel production will drop by 70.7% year-on-year to 6.3 million tons, the larges...

Application of stainless steel in construction

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  Application of stainless steel in construction 1. The modernist architecture adopts the concept of exterior curtain wall. In 1948, an office building in Schenectady, New York, used stainless steel to decorate the exterior wall, which greatly reduced the dead load of the exterior wall, allowing an increase of one floor without changing the original frame and foundation structure. Many examples of the use of stainless steel curtain walls appeared in North America and other parts of the world in the 1950s. For example, Thyssenhaus in Dusseldorf, Germany is one of the high-rise buildings in Europe that use stainless steel. The trapezoidal curtain wall is decorated with SS316 stainless steel on the No. 4 surface with a thickness of only 1.0mm. It is a oriented building. In addition, the high-tech London Lloyd Building built in 1986 also used stainless steel curtain walls, making the artistic achievements of the building continue to this day.  2. Stainless steel is a very strong a...

Stainless Steel Profile Specifications

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  Stainless Steel Profile Specifications Stainless steel profiles are stainless steel materials with different cross-sectional shapes obtained by hot-melting and extruding stainless steel rods. The production process of stainless steel profiles mainly includes three processes: casting, extrusion and coloring. Among them, coloring mainly includes: oxidation, electrophoretic coating, fluorocarbon spraying, powder coating, wood grain transfer and other processes. Stainless steel angle steel: specification <10mmX10mm-/150mmX150mm Stainless steel flat steel, stainless steel square steel: specification 10mmX10mm——750mmX750mm Shengtian Industrial provides a full range of steel products and products.Steel material manufacturers in China.We can supply the steel plate ,steel coil,round steel,structural steel,flat steel. Contact me: Official website:https://p.st.company/ Mail:sale@st.company TEL: +863172099979

Steel selection

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 Steel selection Steel products are widely used and have various varieties. According to the different cross-sectional shapes, they can be divided into four categories: profiles, plates, pipes and metal products. The selection of steel must not only ensure the safety and reliability of the structure, without fake and inferior products, but also be economical and reasonable, which must be treated with caution. The selection of steel should be based on factors such as the importance of the structure, load characteristics, connection methods, working environment, stress status and steel thickness. Shengtian Industrial provides a full range of steel products and products.Steel material manufacturers in China.We can supply the steel plate,steel coil,round steel, structural steel ,flat steel. Contact me: Official website:https://p.st.company/ Mail:sale@st.company TEL: +863172099979

How to identify inferior steel

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 How to identify inferior steel 1. Shoddy steel is prone to folding. Folding is a variety of fold lines formed on the surface of steel, and this defect often runs through the longitudinal direction of the entire product. The reason for the folds is that the counterfeit and inferior manufacturers pursue high efficiency, and the reduction is too large, resulting in ears. Folds will occur in the next rolling process, and the folded products will crack after bending, and the strength of the steel will drop greatly.  2. Fake and inferior steel products often have pockmarks on the surface. Pockmarked surface is a defect of irregular unevenness on the surface of the steel due to severe wear of the rolling groove. Because manufacturers of fake and inferior steel products want to pursue profits, it often happens that groove rolling exceeds the standard.  3. The surface of fake and inferior steel is prone to scarring. One is that the material of fake and inferior steel is uneven an...

Chemical composition of steel

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Chemical composition of steel       In addition to the main chemical composition Fe iron, steel also contains a small amount of carbon (C), silicon (Si), manganese (Mn), phosphorus (P), sulfur (S), oxygen (0), nitrogen (N), titanium (Ti), vanadium (V) and other elements, although the content of these elements is small, they have a great influence on the properties of steel.   Carbon is the most important element to determine the performance of steel, which affects the mechanical properties of steel such as strength, plasticity and toughness. When the carbon content in the steel is below 0.8%, as the carbon content increases, the strength and hardness of the steel increase, and the plasticity and toughness decrease; but when the carbon content is greater than 1.0%, as the carbon content increases, the steel's Intensity decreased instead. The carbon steel used in general engineering is low carbon steel, that is, the carbon content is less than 0.25%, and the carbon content ...