The company formulates appropriate A514 grade E alloy steel plate product internal control components, strictly controls the fluctuation range of chemical components, and ensures the stability of steel plate performance. Strengthen batching control and smelting operations, effectively control the content of harmful elements such as Sn, Sb, As, Cu, and reduce the content of P and S to improve the purity of steel, reduce the tendency of temper embrittlement, and improve the high temperature corrosion resistance of steel. It adopts controlled heating to ensure heating time and temperature, and measures such as controlled rolling to ensure the inherent quality of the steel plate.
When the thickness ≤16mm, the yield strength of TMCP Q460MC steel plate is ≥460 Mpa, and the tensile strength is 540-720 Mpa. TMCP Q460MC steel plate is used as high strength steel structural parts for engineering and general structures with impact performance requirements at low temperature. A514 grade E alloy steel plate, Q460MC steel plate is mainly used for manufacturing bridges, ships, vehicles, boilers, high pressure vessels, oil and gas pipelines, large steel structures, etc.
The effect of nitrogen on steel performance is similar to that of carbon and phosphorus. With the increase of A514 grade E alloy steel plate nitrogen content, the strength of steel can be improved, plasticity especially toughness can be significantly reduced, weldability becomes worse, and cold brittleness is intensified. Nitrogen with aluminum, niobium, vanadium and other elements can reduce its adverse effects, improve the performance of A514 grade E alloy steel plate steel, can be used as an alloying element of low alloy steel.
BBN steel can supply heavy plate cutting, welding, machining, coating and heat treatment for A514 grade E alloy steel plate products. Commonly used flame cutting gases are acetylene, propane, liquefied gas, coke oven gas, natural gas, etc. From the comprehensive consideration of pollution, energy consumption, cost ratio and other aspects, natural gas is currently the most suitable gas for cutting.
