12MnNiVR is a steel plate for boiler pressure vessel, 12MnNiVR is a kind of steel plate for large and medium-sized tanks, 12MnNiVR reads: twelve manganese-nickel-vanadium, 12MnNiVR-SR hydropower steel technology content is higher, belongs to the high-end plate, 12MnNiVR steel plate has a good pressure-bearing capacity can be used in the manufacture of a number of pressure vessels, tanks, ball tanks, storage tanks, and so on.
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All 12MnNiVR-SR plates are delivered in tempered (quenched + tempered) condition, and the final tempering temperature of 12MnNiVR-SR plates is not less than 620. Generally, the delivery time of tempered plates is longer, depending on the time and amount of heat treatment.
Delivery: Heat treatment (heat treatment, quenching) Impact temperature of -20°C Steel plates are supplied under the heat treatment process of off-line heat treatment and quenching, in which the quenching temperature must not be less than 600°C. When steel plates are specified for the removal of ground stresses in the heat treatment process (SR), the final quenching temperature of SR plates is not less than 610°C. Heat treatment is indicated by "QT". Smelting plant way, steel by CO2 steelmaking furnace smelting plant, and by the vacuum pump solution.
12MnNiVR steel plate itself not only has high strength, high toughness, fatigue resistance, impact resistance, corrosion resistance, welding and easy to process and other high-quality performance, commonly used in boiler equipment, pressure vessels, reactors, reactors, heat transfer equipment, petrochemical equipment, chemical equipment manufacturing and so on.
