{"id":5563,"date":"2023-09-19T11:31:58","date_gmt":"2023-09-19T09:31:58","guid":{"rendered":"https:\/\/cncdodrewna.pl\/?page_id=5563"},"modified":"2023-11-07T19:55:53","modified_gmt":"2023-11-07T18:55:53","slug":"skup-stali-nierdzewnej","status":"publish","type":"page","link":"https:\/\/rmcpolska.pl\/en\/purchase-of-stainless-steel\/","title":{"rendered":"Buying stainless steel"},"content":{"rendered":"
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Purchase of stainless, heat-resistant and refractory steels<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\t\tRMC Polska buys stainless, heat-resistant and heat-resistant steels. We are interested in virtually all steel grades with nickel contents ranging from a few to several dozen per cent. The price of acid-resistant steels depends on the content of various elements and is priced individually.\n

\nStainless steel - is a corrosion-resistant steel that contains at least 10.5% of chromium and a maximum of 1.2% of carbon. According to the application, it is divided into stainless steel, heat-resistant steel and heat-resistant steel.\n

\nIn addition to chromium, carbon and iron, corrosion-resistant steels contain additions of other alloying elements to improve various properties of the steel, e.g. mechanical properties, corrosion resistance and formability.\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\t\tFor heat-resistant steels, the most important material characteristic is the high corrosion resistance at temperatures above 550 degrees Celsius. It is related to the resistance to oxidation and corrosive effects of gases at high temperatures, resulting from the propensity to form a protective scale layer on the steel surface.\n

\nIncandescent steel retains its mechanical and structural properties at extremely high temperatures, typically in excess of 500\u00b0C. It is resistant to corrosion from both chemical and high temperatures. Despite its strength, it is relatively well machinable, facilitating the production of complex structures and components.\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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\"chromium-nickel<\/figure>

Chrome-nickel steel<\/h4>

Popularly known as acid-resistant steel, it has in its composition Nickel\n(min 8%) and chromium. It is mainly found in the form of sheet metal, pipes and components for\nhousehold items. Acid-resistant steel scrap should be free of\ncontaminated with other metals and organic substances.<\/p><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t

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\"stainless<\/figure>

Shavings<\/h4>

Chips are an important by-product of the turning and milling processes of stainless steel.\nThe allowable coolant content is 5%. In addition, the material should not be contaminated with other metals in order to preserve its original properties and exceptional corrosion resistance.<\/p><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t

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\"chrome<\/figure>

Chrome steel<\/h4>

A type of alloyed steel which contains chromium as the main alloying\nelement and stainless steel, which is characterised by\nhigh corrosion resistance as well as a noble appearance. On\nscrap it is mainly found in the form of sheets and drums from washing machines. Scrap\nshould be cleaned of steel and other metals.<\/p><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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Chemical composition of stainless steels<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\t\tThe main alloying elements of stainless steels are:
\nchromium (10.5-30%), nickel (up to 35%) and molybdenum (up to 8%),\nand, in addition, additions of elements such as:\ntitanium, niobium, copper, manganese, silicon, aluminium, carbon and nitrogen.\n

\nIt also happens that, in addition to the above-mentioned alloying additives, tungsten, zirconium and boron additives may also be present in stainless steels.\n

\nBased on their chemical composition, steel grades are classified into different groups. Depending on the main element or several elements present in corrosion-resistant steels, we can distinguish four subgroups.\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Division by main characteristics:<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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