Sheath heater

Electrical resistors – Incased – embedded – or housed – Element inpowdered insulation with outer metallic sheath

Patent

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Details

219544, 148327, 148909, H01C 103

Patent

active

047423242

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: 3306736 (1967-02-01), Rundell
patent: 3551142 (1970-12-01), Decroix
patent: 3940267 (1976-02-01), Mimino et al.

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