Reg. 397, Reg. 398, Reg. 399
||This Chapter applies to Electrode
Steam Boilers for all voltages for any working pressure
and for temperatures not exceeding 650°F.
Boilers shall only be of the following construction:
||Riveted Steel Boilers.
||Fusion Welded Steel Boilers.
||Seamless Shell Steel
Where applicable the general terms of Chapter
I relating to certificates from makers, Inspecting
Authorities, etc., and of Chapter
III concerning construction shall be followed.
The material specifications for structural parts of
Electrode Boilers shall comply with Chapter
II as regards the process of manufacture, chemical
composition, mode of manufacture and tests, and the
certificates for the steel plates, rivets and bars where
applicable, provided that the ultimate tensile stress
and elongation of materials shall be between the limits