The base metal is P.No.8, the weld metal is A . No.8-9, and the wall thickness is 1”, what is the hold time for heat treatment

The base metal is P.No.8, the weld metal is A . No.8-9, and the wall thickness is 1”, what is the hold time for heat treatment

A. None

B. 1 hour

C. 2 hours

D. ½ hour for each 1” thickness

View Answer

Answer: A