The KD40 hot rolled steel plate steel making furnace can only be used as primary refining, and the refining needs to be completed in the refining equipment outside the furnace, which is also called secondary refining. It is mainly through decarburization, desulfuration, denitrification and dephosphorization to improve the cleanness of the steel, to establish a chromium molybdenum low alloy steel with good oxidation resistance and high temperature strength, to remove unwanted harmful impurities from the steel, and to improve the KD40 hot rolled steel plate internal quality of the steel.
"Adopt standard specification: ASTM, JIS, EN, DINCategory: Structural Steel, carbon steel plate, KD40 hot rolled steel plate, hot rolled plate Carbon steel plate specification: Thickness: 1mm to 200mm; Width: 1500mm to 3500mm: Length: 3000mm to 27000mmThird Party Inspection: ABS, DNV, BV, GL, CCS, LR, RINA, KR, NK, CE, SGS, IKE, IEI or other quality department.
Since 2020, the foreign trade industry has been significantly affected by the epidemic. In the first two months of this year, China's KD40 hot rolled steel plate and so on steel exports totaled 7.811 million tons, down 27% year-on-year, the largest decline since March 2018. In terms of steel foreign trade, China is mainly a steel exporting country, with less steel imports.
Heat treatment is a very important process to improve the performance of KD40 hot rolled steel plate etc. metal materials. The process of heating, heat preservation and cooling the steel in solid state to obtain the required structure and properties.
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