Highway parapet posts
H Metal supplies highway guardrail posts made of HEA steel beams. After we cut the beams to the lengths required in the project, they are heat galvanized. Steel beam posts for highway parapets are indispensable elements of modern road infrastructure. They represent an investment in the safety and well-being of citizens. They also demonstrate the […]
The main steel manufacturers
The World Steel Association has published the statistics for June 2013. World raw steel production was 131.7 million metric tons, an increase of 3.3% compared to June 2012, but with the same average of 4.39 million tons/day as in May 2013. Chinese production increased by 4.4 million tons between June 2012 and June 2013, but […]
Modern processes in the manufacturing of steel
The methods of steel manufacturing evolved significantly with the beginning of industrial production at the end of the 19th century. However, modern methods are based on Bessemer process. According to the World Steel Association, in 2011, raw steel production reached a new record of 1.527 billion metric tons. Of these, about two-thirds were made using […]
History of steel
Steel is an alloy of iron and other elements: carbon, manganese, phosphorus, sulfur, silicon, traces of oxygen, nitrogen and aluminum. Carbon and the other alloy elements act as a hardening agent. Steel has carbon content below 2.11%; iron-carbon alloys containing carbon over 2.11% are called cast iron. The history of steel begins in ancient times. […]
Customized products
H Metal delivers customized metallurgical products to be delivered ready for assembly on site. These products bring economic and time benefits to our customers. black sheet, ribbed sheet, square and rectangular pipe, profiles and europrofiles. Cold forming is the operation of plastic deformation through which a flat semi-finished product is transformed into a hollow part […]
What is calm steel?
Steel made in furnaces or converters is poured into steel molds (special molds made of cast iron), where it cools and solidifies. When it is poured into steel molds and the iron oxide content is too high, the steel shows the “boiling” phenomenon, which leads to the production of gas inclusions as structural defects. The […]
How much silicon should steel have for galvanization?
To obtain a uniform galvanized layer in terms of thickness and quality, the following values should not be exceeded in the steel composition: silicon (0.12% -0.25%), phosphorus (max. 0.25%), carbon (max. 0.2%), and manganese (max. 1.5%). In metallurgy, it is known that silicon (Si) and phosphorus (P) are elements normally added to steel to improve […]
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