Message from
Chairman of Central Boilers Board


About Central Boilers
Board


History of Indian Boiler Regulations

Foreword

Contents Chapter
Wise


Contents Regulation
Wise


List of Amendments

Indian Boilers
Act 1923


Ibr Forms

Home

Search

Help

Contact Us

Reg. 86
MATERIALS OF CONSTRUCTION

GENERAL GREY IRON CASTINGS (GRADE A)


(a) Process of manufacture.- The castings shall be cast from metal melted or refined in any metallurgical plant other than an iron ore smelting furnace, for the use of which furnace permission in writing must be received from the Inspecting Authority.

(b) Chemical Composition.- The composition of the iron as cast shall be left to the discretion of the manufacturer but the maximum percentage of phosphorus or sulphur or both may be specified by the Inspecting Authority, if he so desires.

(c) Moulding.- The castings shall be accurately moulded in accordance with the pattern or working drawings supplied by the Inspecting Authority with the addition of such letters, figures or marks as may be specified and the drawings shall include the tolerances specified in the Regulations.

Freedom from defects.- The castings shall be sound, clean out of twist and free from blow holes distortion and all surface and other defects. They shall be well dressed or fettled and shall be machinable by normal methods.

 
Back   Top
Message from Chairman of Central Boilers Board About Central Boiler Board History of Indian Boiler Regulations Foreword Contents Chapter Wise Contents Regulation Wise List of Amendments
Indian Boilers Act 1923 Ibr Forms Home Search Help Contact Us