| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c60cbeb32859b75d089103559c856e48 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C21D2211-005
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C21D2211-001
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C21D2211-008
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C21D8-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C21D1-19 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22C38-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22C38-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22C38-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22C38-002
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22C38-001
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C21D8-105
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22C38-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C21D6-008
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22C38-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22C38-54
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22C38-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C21D6-005
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22C38-46
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C21D6-004
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22C38-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C21D9-085
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C21D9-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C21D1-25
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22C38-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C21D1-19
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C21D1-25
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22C38-46
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22C38-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22C38-54
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C21D8-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C21D9-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22C38-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C21D6-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22C38-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22C38-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22C38-00 |
| filingDate |
2016-10-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_23b496556339cff3f42c7fb050d284b7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_399f22289fa43c9e5b255b903a14ecf0 |
| publicationDate |
2018-11-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-3404120-A1 |
| titleOfInvention |
Method for manufacturing stainless steel pipe for oil wells and stainless steel pipe for oil wells |
| abstract |
A method of manufacturing a stainless steel pipe for oil wells with improved toughness in a stable manner is provided. The method of manufacturing a stainless steel pipe for oil wells includes: the step of preparing a hollow shell having a chemical composition of, in mass %: up to 0.05 % C; up to 1.0 % Si; 0.01 to 1.0 % Mn; up to 0.05 % P; below 0.002 % S; 0.001 to 0.1 % Al; 16.0 to 18.0 % Cr; 3.0 to 5.5 % Ni; 1.8 to 3.0 % Mo; 1.0 to 3.5 % Cu; up to 0.05 % N; up to 0.05 % O; 0 to 0.3 % Ti; 0 to 0.3 % Nb; 0 to 0.3 % V; 0 to 2.0 % W; 0 to 0.01 % Ca; 0 to 0.01 % B; and the balance Fe and impurities; a first step for holding the hollow shell in a temperature range of 420 to 460 °C for a holding time of 60 to 180 minutes; and a second step, after the first step, for holding the hollow shell in a temperature range of 550 to 600 °C for a holding time of 5 to 300 minutes. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3822381-A4 |
| priorityDate |
2016-01-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |