http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2019112681-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5198a2a21392d6cbc0bb4898b3fb3d29 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22C38-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22C38-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C21D9-08 |
| filingDate | 2017-12-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3779b7a1a9211798544b97423e4997ec http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6733d3db40ae14ab0fd6ad5cf70dafab http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b78e264d841537cabcb3dc07fd04018d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7c72e42fe2ecc48434749f7455324719 |
| publicationDate | 2019-07-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2019112681-A |
| titleOfInvention | Steel material, steel pipe for oil well, and manufacturing method of steel material |
| abstract | The present invention provides a steel pipe for steel wells and oil wells having a yield strength of 1069 to 1,172 MPa, an excellent low temperature toughness, and an excellent SSC resistance. The steel material according to the present disclosure is, by mass%, C: more than 0.50 to 1.00%, Si: 0.05 to 1.00%, Mn: 0.05 to 1.00%, P: 0.025% or less, S: 0.0100% or less, Al: 0.005 to 0.100%, Cr: 0.20 to 1.50%, Mo: 0.25 to 1.50%, Ti: 0 .002 to 0.050%, B: 0.0001 to 0.0050%, N: not more than 0.0100%, and O: not more than 0.0100%, with the balance being Fe and impurities Have. The steel according to the present disclosure further contains solid solution C in an amount of 0.010 to 0.060 mass%. The grain size number of the prior austenite grain is 8.0 or more. The yield strength is over 1069 to 1172 MPa, and the yield ratio is 85% or more. [Selected figure] Figure 1 |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2023165617-A1 |
| priorityDate | 2017-12-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 22.