http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104694832-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C21D1-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C21D6-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22C38-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22C38-52 |
| filingDate | 2015-02-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2017-02-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2017-02-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104694832-B |
| titleOfInvention | Martensitic stainless steel for nuclear reactor and preparation method of stainless steel |
| abstract | The invention discloses martensitic stainless steel for a nuclear reactor and a preparation method of the stainless steel, belonging to the technical field of nuclear power steel. The martensitic stainless steel comprises the following chemical components in percentage by weight: 0.05-0.20 percent of C, less than or equal to 0.5 percent of Si, less than or equal to 0.5 percent of Mn, less than or equal to 0.020 percent of P, less than or equal to 0.020 percent of S, 11.0-15.0 percent of Cr, 1.8-3.5 percent of Ni, 1.0-1.8 percent of Mo, 0.3-2.0 percent of W, 0.10-0.40 percent of V, 0.10-0.50 percent of Nb, 0.02-0.20 percent of N, less than or equal to 0.05 percent of Co, less than or equal to 0.02 percent of Cu and the balance of Fe and the inevitable impurities. The preparation method comprises the following steps: adopting a process for performing vacuum induction smelting and electroslag remelting duplex smelting, cutting the heads and tails of the cast steel ingots, cogging, and forging, thereby obtaining the rod blank; and processing the rod blank into a part blank, and performing heat treatment. According to a martensitic stainless steel workpiece prepared by the method, the internal stress generated in the quenching process is reduced, deformation of the workpiece is improved, cracking of the workpiece is avoided, the yield of the product is obviously improved, and the requirement on the service performance of the manufactured workpiece is met. |
| priorityDate | 2015-02-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 16.