SA299GrA steel plate is one of the materials widely used in boiler drums (steam drums) of coal-fired generator sets. At present, the special thick steel plate for boiler steam drum has not been domestically produced, and the SA299GrA extra-thick steel plate is heavily dependent on imports, which greatly affects the cost control and delivery cycle of domestic boiler manufacturers.
At the end of last year, the company independently developed SA299GrA extra-thick steel plate for boiler steam drums with self-produced steel ingots, with a thickness of 178mm. According to the evaluation of professional authorities, the conventional and high-temperature mechanical properties, macro and micro structure and welding performance of the steel plate meet the needs of boiler drum products and can be applied to the manufacturing of boiler drum equipment, thus breaking the situation that the extra thick steel plate used for steam drum is heavily dependent on imports. Previously, the SA299GrA steel plate was approved to produce thicknesses ranging from 8mm to 150mm. After the successful trial production of the 178mm thick SA299GrA steel plate, we applied to the National Boiler and Pressure Vessel Standardization Technical Committee and successfully passed the assessment, successfully expanding the upper limit of the production thickness range of the SA299GrA steel plate to 200mm, which is the largest thickness in China.
- August 30, 2018Characteristics of Pressure Vessel Standards1.Various typesDue to the unshaped and multi-variety characteristics of pressure vessel products, the standards involved are incomparable to any product. Ac...view
- August 30, 2018Section 1 A633GrD Executive Standards1.1This standard applies to normalized high-strength low-alloy structural steel plates for welding, riveting or bolted structures.1.2This steel plate is particular...view
- April 14, 2018Thick steel plate refers to the collective name for steel plates with a thickness of 4 mm or more. In actual work, a steel plate with a thickness of less than 20 mm is often referred to as a middle pl...view
- August 6, 2018Why does the thickness of the steel plate have nothing to do with the safety?The structure of the car is like a lanternThe structure of this lantern is very similar to that of our car. It is a skeleto...view