Q275HD material belongs to the category of nuclear power steel in the carbon steel plate, where "Q" represents the yield of the steel plate, "275" represents its yield, which is the minimum yield strength value in the production regulations, and "HD" is the first capitalization of the initial pinyin of the word nuclear power Letter composition.
Grades included in the GB/T 30814-2014 standard: Q205HD, Q230HD, Q250HD, Q275HD, Q345HD1, Q345HD2, Q420HD.
Q275HD steel plate delivery status:
Steel plates should be delivered in hot rolled, hot rolled and tempered, normalized, normalized and tempered states
Main properties of Q275HD steel plateNuclear power steel should have good structural stability, weldability, cold and hot workability and nuclear fatigue strength at working temperature. It should have good resistance to radiation embrittlement sensitivity under reactor irradiation conditions, but this grade The steel plate generally also has certain requirements for its Z-direction performance. Generally, steel for nuclear power has strict requirements on chemical composition.
Q275HD nuclear power steel should have good structure stability, weldability, cold and hot workability at working temperature, nuclear fatigue strength, and good resistance to radiation embrittlement sensitivity under reactor irradiation conditions, but this grade The steel plate generally also has certain requirements for its Z-direction performance. Therefore, this grade of steel plate will be frequently used in the manufacture of nuclear power equipment.
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