Sheath heater

Electric heating – Heating devices – With heating unit structure

Patent

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Details

219544, 219553, 29611, 420452, 420453, 338238, H05B 310

Patent

active

049508733

ABSTRACT:
A corrosion-resistant steel tube such as a sheath heater steel tube and boiler tube which exhibit improved resistance to dry corrosion under high temperature dry-corrosive conditions in the presence of chlorides is disclosed. The steel consists essentially of, in % by weight:

REFERENCES:
patent: 3729308 (1973-04-01), Eiselstein et al.
patent: 4280042 (1981-07-01), Shimotori et al.

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