Non-secondary A514 grade R alloy steel plate product hot selling: 26*1500*9950, 23.5*2040*8100, 24*1500*6700, 23.5*1640*6550, 29*2140*7700, 30*1500*6000, 24*2000*9550, 26.5*2000*7000, 26*1600*6000, 32*1570*6000, 32.5*1560*6250, 25.5*1300*6000, 27*2550*6800, 27.5*2700*5500, 33*2340*6700, 34*1300*4000, 25.5*1740*8700, 29*2550*9000, 29*2870*12000, 26*1300*8100, 32.5*3050*6500.
With the increase of temperature, the yield limit of A514 grade R alloy steel plate will decrease monotonically, but the tensile strength of A514 grade R alloy steel plate will rise to a high peak value at a certain temperature, and then decrease. This peak temperature is called the blue brittleness temperature of A514 grade R alloy steel plate. Near the blue brittleness temperature, the A514 grade R alloy steel plate strength increases and the plasticity decreases. The elongation and section shrinkage of A514 grade R alloy steel plate increase with the increase of temperature, but there is a low peak at the blue brittleness temperature. The blue brittleness temperature of low carbon steel ranges from 200 ℃ to 250 ℃. The blue brittleness of low alloy steel is not obvious as that of low carbon steel, and the blue brittleness temperature is higher.
Focusing on the energy conservation and emission reduction objectives proposed by the municipal government, the company gives full play to the advantages of A514 grade R alloy steel plate circular economy formed after the comprehensive completion and operation, and vigorously promotes the implementation of energy conservation objectives. Through measures such as energy saving, technological innovation and A514 grade R alloy steel plate management strengthening, the energy saving target of annual reduction of added value energy consumption by 7%. It has made great contribution to energy saving of over completion.
The main function of boron in A514 grade R alloy steel plate and so on steel is to increase the hardenability of steel, so as to save other rare and precious metals, such as nickel, chromium and molybdenum. For this purpose, the boron content is generally regulated in the range of 0.001% - 0.005%. It can replace 1.6% nickel, 0.3% chromium or 0.2% molybdenum. It should be noted that molybdenum can prevent or reduce temper brittleness, while boron slightly promotes temper brittleness, so molybdenum can not be completely replaced by boron.
