The production standard of hardness of nm450 sheet

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Q370qDNH steel plate atmospheric corrosion resistance steel grade: Q—The first letter of the Chinese pinyin of "qu" for the yield strength of steel used in bridges; 370-a specified value of small yield strength, unit MPa; q-the first letter of the Chinese pinyin of the word "bridge" for bridge steel; D—The quality level is D level; N——The first letter of the Chinese phonetic alphabet of the word "Nei"; H——The first letter of Pinyin of "hou"; Q370qDNH steel standard: GB/T 714-2015.

Q/BQB 310-2009 SAPH310 automotive structural steel technical dataChemical composition (melting analysis)%Carbon : ≤0.10, Silicon : ≤0.05, Manganese: ≤0.50, Phosphorus: ≤0.035, Sulfur: ≤0.035, Aluminum: ≥0.01Mechanical propertiesYield strength MPa: ≥185Tensile strength MPa: ≥310Elongation: ≥35

The wear-resistant layer of hardness of NM450 sheet wear-resistant steel plate is mainly composed of chromium alloy, and other alloy components such as manganese, molybdenum, niobium and nickel are added. The carbide in the microstructure is distributed in the form of fiber, and the direction of the fiber is perpendicular to the surface. The microhardness of carbides can reach hv1700-2000 and HRC58-62 respectively. The alloy hardness of NM450 sheet carbide has strong stability at high temperature, high hardness and good oxidation resistance. It can be used normally within 500 ℃.

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If you are in the search of best quality of hardness of NM450 sheet structural steel plate then you have landed on the right place. These high quality structural steel plates are used for a long time as they have a long life due to their best and advance manufacturing techniques. These hardness of NM450 sheet plates are best and ideal for temperature rise work, high pressure and tank fabrication work where accurate & excellent toughness is required for better results. Welcome to our factory. We supply our products to all the leading industries and customers who are satisfied with our production and quality.