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我国汽轮机所用的不锈钢和叶片材料,也和转子主轴一样,技术条件基本上仍沿用苏联五十年代的标准。如30G_2MoV钢(即苏联五十年代初期的试验2号钢—P_2),其生产工艺与高温性能均不理想,但5万—30万整体转子至今仍沿用此钢,事实上苏联对此早已淘汰,并且技术条件也作了多次修改。当前日本、欧美等国对转子材料要求作中心孔的磁粉探伤、超声波探伤、机械性能、脆性转变温度等试验,并且还要作短期高温性能的复核。另外还有好多规定,如显微组织的检验——非金属夹杂物,晶粒度、δ—铁素体等等,这些都是验收
Stainless steel and vane materials used in China’s steam turbines are also the same as the main spindles of the rotor. The technical conditions basically still follow the standards of the 1950s. Such as 30G_2MoV steel (the Soviet Union in the early 1950s test No. 2 steel-P_2), its production technology and high temperature performance are not ideal, but 50000 -30 million overall rotor still use this steel, in fact, the Soviet Union has long been eliminated , And technical conditions have also made many changes. Currently Japan, Europe and the United States and other countries on the rotor material requirements for the center hole magnetic flaw detection, ultrasonic testing, mechanical properties, brittle transition temperature test, but also for short-term high-temperature performance of the review. There are many other rules, such as microscopic examination - non-metallic inclusions, grain size, δ-ferrite, etc., these are acceptance