[Solved] one of the following is the preventive measure for intergranular corrosion

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Q.	one of the following is the preventive measure for intergranular corrosion
A.	use of low carbon grade os stainless steel (304l, 316l grade)
B.	use of stabilised grade of stainless steel (321 or 322 grade)
C.	use post weld heat treatment
D.	all of the above
Answer» D. all of the above

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