Method for manufacturing welded clad steel tube
US5855699A · kind A · utility
17Cited by
3References
8Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Apr 9, 1997 |
| Grant date | Jan 5, 1999 |
| Priority date | — |
| Expiry date | Apr 9, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D2251/04
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
In a method of the present invention for manufacturing a welded clad steel tube, an alloy including a corrosion-resisting or heat-resisting alloy is overlaid on a raw steel tube to manufacture a cold steel tube. Then, a cold or warm working is subjected to the clad steel tube. The clad steel tube is subjected to a heat treatment at a temperature exceeding a recrystallization temperature of the alloy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.