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. 60
MATERIALS OF CONSTRUCTION

Tensile Test

 

Tensile Test.- (a) The tensile strength of the material cut from the finished tube shall conform to the following requirement.

_________________________________________________________________________

Tube                       Yield  strength                      Tensile strength          % Elongation+

Grade                      Mpa(kgf/mm sq.)                 Mpa(kgf/mm2)

                                      (Min)                                     (Min)                                          (Min)___________

WC1                            195                                          320/480                                 25                                                                     (19.9)                                      (32.6/49.0)                                                                  WC2                            235                                          360/500                                 24                                                                   (24.0)                                                         (36.7/51.00)                                   WC3                            245                                          440/580                                 21 _____________       (25.0)                                      (44.9/59.2)___________________________

+ On gauge length 5.65A where A is the initial cross sectional area of the specimen on the gauge length.

(b) Allowable permissible stress at elevated temperature. Allowable permissible stress as per the respective code  shall be strictly followed.

 

 
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