What is the standard of 19Mn6 pressure vessel steel sheet

High-strength hull structural steel is divided into strength grades according to its minimum yield strength, and each strength grade is divided into A, D, E, F4 grades according to its impact toughness. The yield strength of ship plate materials A32, D32, E32, F32, 19Mn6 pressure vessel steel sheet is not less than 315MPa.

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The main function of boron in 19Mn6 pressure vessel steel sheet 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.

BBNsteel prime quality thick plate 19Mn6 pressure vessel steel sheet product stock: 31*1640*6150, 34*1460*4550, 34*2420*7300, 26*2800*5300, 32.5*3050*7000, 32*1600*4000, 36*1300*4500, 35*1300*4100, 26*2990*6000, 37*1600*8600, 32*2650*5500, 33*2550*6000, 34*2120*6100, 36*1500*6000, 45*1300*4000, 32*3300*6000, 40*1590*8000, 33*1750*6000, 33*1750*6000, 50*1800*6000, 65*2000*6000.