The material of the nozzle shell forgings with high technical requirement used for the nuclear reactor pressure vessel is SA508C1.3 Steel complied with ASME code,and the wall thickness of the sampling part is 364 mm.

• 核反应堆压力容器用接管段锻件的材质为ASME标准中的SA508Cl.；3钢；取样部位的壁厚为364mm；技术要求高。