How to identify shoddy A588 Grade K angle spot

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16Mo3 material is a pressure vessel and boiler steel grade that is used in applications with elevated temperatures according to EN 10028–2. It has improved mechanical properties and better creep resistance allowing it to be used up to 500°C. 16Mo3 boiler steel is used as a material at elevated operating temperatures, and is used as a weldable steel for manufacturing industrial boilers and stainless steel pressure vessels in the petroleum, natural gas and chemical industries.

High strength steel is a kind of steel often used in engineering construction. With the improvement of technical level, the research and development of high strength steel in China has made remarkable achievements. The application of high strength steel A588 Grade K angle spot in the construction field can reduce the steel consumption and building volume, and improve the building weight. That is one of the important reason why the high strength steel is so warmly welcomed nowadays.

The characteristic of niobium in A588 Grade K angle spot etc. steel material is to increase the recrystallization temperature of austenite, so as to achieve the purpose of refining austenite grains. In general, the amount of niobium added in steel material is less than 0.05%, and the contribution of niobium above 0.05% to strengthening and toughening will no longer be obvious.

The carbon content of A588 Grade K angle spot, medium carbon steel plate is 0.25% - 0.60%. In addition to carbon, it can also contain a small amount of manganese (0.70% - 1.20%). The medium carbon steel plate after quenching and tempering has good comprehensive mechanical properties. The highest hardness is about HRC55 (hb538) and σ B is 600-1100mpa.

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Our company will accept the product quality objection registration record, pass it to the A588 Grade K angle spot production unit and relevant departments, and timely coordinate the supervision of product A588 Grade K angle spot quality objection. Our company coordinates the relevant department personnel to the customer unit to carry on the investigation, the processing.