P92 high pressure boiler tubes based on P91 steel

Keywords:P92 high pressure boiler tubes, P91 steel
P92 high pressure boiler tube is based on the P91 steel, using a variety of ways to strengthen the research and development of good high temperature strength and creep resistance of the new ferrite heat-resistant alloy steel pipe. It is the highest use of high temperature compared to P91, P91 in the manufacture of large power plant boiler metal wall temperature and pressure higher part of the head and steam pipe instead. Due to tungsten, molybdenum compound solutions, reinforced multi-reinforcement devices, P92 performance tests for P91 difficult mill equipment are quite large, and the rolling range of temperature selection is narrow. The team members of the technical center, on the basis of summing up past experience, rolled the high alloy tube system technology, fully considering the production capacity of the equipment, the production process conditions, and actively explored the two tubes of the assel rolling unit to improve the heating system, optimize the process parameters, tool configuration and deformation of the distribution, in strict accordance with the unit's internal control standards of production, the successful rolling Φ168 × 30mmP92 high pressure boiler tube.
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