Method for making steel tubes or pipes of increased acidic gas r

Details Method for making steel tubes or pipes of increased acidic gas r Method for making steel tubes or pipes of increased acidic gas r

1986-06-10

1988-01-26

Brody, Christopher W.

Metal treatment

Compositions

Heat treating

148127, 148150, 148154, C21D 810

Patent

active

047215364

ABSTRACT:
For increasing the resistance of steel pipes or tubes against acidic medium, by a combination of a heat treatment and the use of an alloyed steel, a compressure stress is built up on the side of the tubes or pipes facing the acidic medium, of up to 30% of the yield limit.

REFERENCES:
patent: 4020312 (1977-04-01), Araki et al.
patent: 4168190 (1979-09-01), Eguchi et al.
patent: 4229235 (1980-10-01), Matsuda et al.
patent: 4388123 (1983-06-01), Murayama

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