Austenitic stainless steel forging and production process thereof
A technology of austenitic stainless steel and production technology, which is applied in the field of forgings and its production technology, can solve the problems of less research on grain size control, low strength, tensile strength and high yield strength that cannot be effectively improved, and achieve improved Effect of tempering stability, good corrosion resistance, and good toughness
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[0024] Example 1
[0025] This embodiment is an austenitic stainless steel forging, the mass percentage of chemical composition is: C: 0.1%, Si: 0.6%, Mn: 0.9%, P: 0.01%, S: 0.004%, Cr: 18.6%, Ni :9.4%, Mo: 0.1%, Nb: 0.06%, V: 0.07%, Ti: 0.005%, B: 0.005%, Al: 0.007%, lanthanide rare earth: 0.007%, the balance is Fe; lanthanide rare earth The component mass percentages are: lanthanum: 36%, cerium: 14%, europium: 10%, terbium: 10%, gadolinium: 15%, praseodymium: 5%, holmium: 4%, erbium: 5%, other lanthanides :1%.
[0026] The production process of the austenitic stainless steel forging of this embodiment is carried out according to the following procedures: material selection-blanking-heating-forging-heat treatment-ring rolling-tempering-cooling-physical and chemical inspection-ultrasonic flaw detection-cleaning-packaging;
[0027] In the heating process, the heating temperature is 1110°C and the time is 1 hour;
[0028] In the heat treatment process, heating is used in stages, the h...
Example Embodiment
[0032] Example 2
[0033] In this embodiment, an austenitic stainless steel forging, the mass percentage of chemical composition is: C: 0.2%, Si: 0.7%, Mn: 1%, P: 0.008%, S: 0.003%, Cr: 18.7%, Ni: 9.5%, Mo: 0.2%, Nb: 0.07%, V: 0.08%, Ti: 0.006%, B: 0.006%, Al: 0.008%, lanthanide rare earth: 0.008%, the balance is Fe; lanthanide rare earth group The sub-mass percentages are: lanthanum: 40%, cerium: 15%, europium: 5%, terbium: 12%, gadolinium: 10%, praseodymium: 9%, holmium: 5%, erbium: 2%, other lanthanides: 2%.
[0034] The production process of the austenitic stainless steel forging of this embodiment is carried out according to the following procedures: material selection-blanking-heating-forging-heat treatment-ring rolling-tempering-cooling-physical and chemical inspection-ultrasonic flaw detection-cleaning-packaging;
[0035] In the heating process, the heating temperature is 1120°C and the time is 3 hours;
[0036] In the heat treatment process, the heating is performed in sta...
Example Embodiment
[0040] Example 3
[0041] This embodiment is an austenitic stainless steel forging, the mass percentage of its chemical composition is: C: 0.3%, Si: 0.8%, Mn: 1.1%, P: 0.01%, S: 0.002%, Cr: 18.8%, Ni: 9.6%, Mo: 0.3%, Nb: 0.08%, V: 0.09%, Ti: 0.007%, B: 0.007%, Al: 0.009%, lanthanide rare earth: 0.009%, the balance is Fe; lanthanide rare earth The mass percentages of the components are: lanthanum: 25%, cerium: 6%, europium: 8%, terbium: 13%, gadolinium: 22%, praseodymium: 6%, holmium: 9%, erbium: 10%, and other lanthanides Element: 1%.
[0042] The production process of the austenitic stainless steel forging of this embodiment is carried out according to the following procedures: material selection-blanking-heating-forging-heat treatment-ring rolling-tempering-cooling-physical and chemical inspection-ultrasonic flaw detection-cleaning-packaging;
[0043] In the heating process, the heating temperature is 1130°C and the time is 5 hours;
[0044] In the heat treatment process, stage ...
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