Bellows pipe

Details Bellows pipe Bellows pipe

1995-12-07

1997-10-14

Brinson, Patrick

Pipes and tubular conduits

Flexible

Corrugated

138143, 138140, 138145, 138DIG6, F16L 1100, F16L 914

Patent

active

056761767

ABSTRACT:
A corrugated pipe formed by electric welding of a thin-walled hoop material made of ferrite type stainless steel containing not less than 1% by weight but not more than 3% by weight of Si. A Ni-type plating may be formed to at least one surface of the pipe. The corrugated pipe is free from crystal grain growth in the vicinity of the bead area of electric welding and excellent in the mechanical strength and further has excellent corrosion resistance.

REFERENCES:
patent: 4147185 (1979-04-01), Hines
patent: 4463061 (1984-07-01), Otoguro et al.
patent: 4505232 (1985-03-01), Usami et al.
patent: 5350561 (1994-09-01), Takamura et al.
patent: 5458156 (1995-10-01), Okubo et al.
patent: 5482090 (1996-01-01), Yamanashi

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