There is a material substitution form for the pressure vessel; does the drawing need to be modified?
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I would like to ask everyone: for pressure vessel products where a thicker material is used in place of a thinner one, and a material substitution order is issued, is it necessary to make changes to the drawings?
After the equipment is manufactured, it can be corrected on the as-built drawings.
Just edit it by hand, stamp your name on it or sign your name manually
After the drawings are modified, sign and affix a small stamp, and finally apply the as-built drawing stamp.
Per IEC 60529 P17 4.1.4.1, this must be indicated on the as-built drawings, along with a signature and date
Thank you to the person above; the explanation was very detailed.
Yes, it’s ready now – the design has been modified and signed off, with the number of changes on the as-built drawings indicated
The substitute form is archived together with the drawings, and then modifications can be made on the as-built drawings