q265hr/z35 sa738gr.B steel plate carbon equivalent and heat treatment process description, Q265HR is nuclear power steel, HR stands for nuclear capacity. It belongs to the Nuclear Power Institute of the Ministry of Science and Technology of Wugang and is used in the fields of chemical and nuclear industries and power grids. The samples for Q265HR chemical composition analysis shall be prepared in accordance with the provisions of GB T20066, and the analysis shall be carried out in accordance with the relevant parts of GB T223, GB T4336, GB T20123, GB T20124 or other corresponding standards, but the arbitration analysis shall be carried out in accordance with the relevant parts of GB T223.
Delivery status: Delivered in normalized condition, when requested by the user and indicated in the contract, the steel plate that needs to be heat-processed after delivery can be delivered in a non-heat-treated state. It can also be added according to the needs of the requirements of flaw detection standards, flaw detection grades, classification society certification, Z-direction performance requirements, adding special alloying elements, etc., but need to be communicated by both suppliers and demanders, and indicated in the contract.
q265hr sa738gr.b. Steel plate delivery status: Delivered in normalized or quenched + tempered (quenched and tempered) condition.
Normalizing: The steel plate is heated to a suitable temperature and cooled in air.
Quenching: The steel plate is heated and insulated and then quickly cooled in a medium such as water, oil or other inorganic salts.
Tempering: The steel plate is kept warm for a long time at a certain appropriate temperature before cooling.
q265hr sa738gr.b. Steel Plate Chemical Composition:
c:≤0.2,si:≤0.4,mn:0.8~1.4,p:≤0.025,s:≤0.015,ni:≤0.3,cr:≤0.3,mo:≤0.08,cu:≤0.3,nb:≤0.02,v:≤0.02，ti：≤0.03，alt：≥0.02，n：≤0.012。
Q265HR steel plate size, shape, weight and allowable deviation.
The size, shape, weight and other requirements of allowable deviation of the steel plate shall comply with the provisions of GB T 709-2006.