Austenitic alloy pipe and method for producing the same
US9429254B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 19, 2012 |
| Grant date | Aug 30, 2016 |
| Priority date | — |
| Expiry date | Feb 2, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D2211/001
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
There is provided an austenitic alloy pipe that is durable even if a stress distribution different according to usage environment is applied. The austenitic alloy pipe in accordance with the present invention has a tensile yield strength YSLT of at least 689.1 MPa. The tensile yield strength YSLT, a compressive yield strength YSLC in a pipe axial direction, a tensile yield strength YSCT in a pipe circumferential direction of the alloy pipe, and a compressive yield strength YSCC in the pipe circumferential direction satisfy Formulas (1) to (4).0.90≦YSLC/YSLT≦1.11 (1)0.90≦YSCC/YSCT≦1.11 (2)0.90≦YSCC/YSLT≦1.11 (3)0.90≦YSCT/YSLT≦1.11 (4)
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.