Anticorrosive bellows

Details Anticorrosive bellows Anticorrosive bellows

1978-05-18

1979-10-16

Steiner, Arthur J.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

29454, 72 54, 75128G, 75128Z, 113116B, F16J 304, C22C 3802, C22C 3848, C22C 3850

Patent

active

041712188

ABSTRACT:
An anticorrosive bellows made of stainless steel containing 0.10% by weight or less of C, 2.5-5% by weight of Si, 2% by weight or less of Mn, 15-20% by weight of Cr, 10-22% by weight of Ni, 10 times or more as much as the C content but at most 2.5% by weight of at least one element selected from the group consisting of Ta and Zr, and the remainder consisiting substantially of Fe shows excellent corrosion resistance even under strongly corrosive circumstances, e.g. fuming or concentrated nitric acid. Said stainless steel has improved workability, weldability and endurance and the produced bellows can be used as a bellows valve, a bellows joint, and the like.

REFERENCES:
patent: 2225730 (1940-12-01), Armstrong
patent: 2920954 (1960-01-01), Mott
patent: 2984563 (1961-05-01), Tanczyn
patent: 3429160 (1969-02-01), Banks
patent: 3615368 (1971-10-01), Baumel
patent: 4000984 (1977-01-01), Baumel
patent: 4108641 (1978-08-01), Fujioka et al.

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