Since its establishment, the company has always adhered to the enterprise spirit of "solid feet and lofty ideals, dare to create and take responsibility, and dedicate to work". After years of careful management, the company has achieved the double improvement of capital strength and scale expansion, gained wide recognition and general praise from all walks of life, further realized specialized and large-scale operation and optimized allocation of resources, and effectively improved the overall strength, competitiveness and anti risk ability of the company.ASTM A514 quenched and tempered steel
Boiler vessel plate: it is used to manufacture various boilers and important accessories. Because the boiler steel plate is in the medium temperature (below 350 ° C) and high pressure state, in addition to bearing high pressure, it is also subject to impact, fatigue load and water and air corrosion. It is required to ensure a certain strength and good welding and cold bending performance. It is a special steel plate for pressure vessel, which is widely used in China.
ASTM A514 quenched and tempered steel,As the boiler steel plate is working under medium temperature (below 350 ℃) and high pressure, the boiler steel plate is not only subjected to high pressure, but also subjected to impact, fatigue load and water and gas corrosion. The performance requirements for boiler steel mainly include good welding and cold bending performance, certain high temperature strength, alkali corrosion resistance, oxidation resistance, etc.
The work performance of steel material is mainly depended on its chemical composition, mechanical properties etc parameters The higher strength the steel has, the less quantity steel is needed to achieve same strong effect of the steel structure However, the steel strength varies with the thickness So please take steel thickness into consideration when evaluating the steel strength For a certain steel, its strength also has something to do with the steel shape For example, for a same steel grade, the steel strength is different for steel plates and pipes,ASTM A514 quenched and tempered steel.
The quality grade symbols of Q235 steel plate are A, B, C and D respectively. Different grades represent different impact temperatures. Q235A is not required for impact toughness test; Q235B is required for impact toughness test at room temperature (20 ℃); Q235C is required for impact toughness test at 0 ℃; Q235D is required for impact toughness test at - 20 ℃. For the above-mentioned B, C and D grade steels, Akv ≥27J is required under different temperature requirements. At different impact temperature, the impact value is also different.
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As one of the large professional metallurgical manufacturers in China, the strength of the brand, quality assurance, professional after-sales Every day we are making unremitting efforts to challenge higher quality products and more satisfactory services Customer demand is our pursuit, and win customer satisfaction with quality BBN aftersales team is responsible to solve the problem of technical support and quality, service complaints,ASTM A514 quenched and tempered steel.
