Method for producing a high tensile strength and high toughness bend pipe
US3973999A · kind A · utility
2Cited by
2References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 11, 1975 |
| Grant date | Aug 10, 1976 |
| Priority date | — |
| Expiry date | Jul 11, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D8/10
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for producing a high tensile strength and toughness bend pipe in which a heat treatment is done as a pretreatment prior to bending, and a tempering treatment is done, if necessary, after the bending, and the bend pipe produced by the present invention is useful for pipe line construction and shows excellent properties at low temperatures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.