Paragraph 5.7.4.6

[MJEZ8]

Gentlement

Kindly explain to what is all about?
5.7.4.6 When used in stress-relieved assemblies, the material of quenched and tempered steels A537, CL 2, and A678, Grade B, and of TMCP steel A841 shall be represented by test specimens that have been subjected to the same heat treatment as that used for the stress relieved assembly.

Thank you in advance...

 

[weldstan]

To assure that the material meets the mechanical properties with the added heat treatment during construction.