[MW:18270] Material Thickness Inspection

Dear Expert,

                    Please Cleared my doubt,

ASME SECTION VIII UG-16. (c) Mill Undertolerance. Plate material shall be ordered not thinner than the design thickness. Vessels made of

plate furnished with an undertolerance of not more than

the smaller value of 0.01 in. (0.25 mm) or 6% of the

ordered thickness may be used at the full design pressure

for the thickness ordered.

 

Ok I understand not less than the above Tolerance.

 

 If the specification to which the plate is ordered allows a greater undertolerance, the ordered thickness of the materials shall be sufficiently greater than

the design thickness so that the thickness of the material

14 furnished is not more than the smaller of 0.01 in. (0.25 mm)

or 6% under the design thickness.

I don't understand not more than the smaller of 0.01 in. (0.25 mm)

or 6% under the design thickness. Actually we required a plate thickness 121mm but we received 122.8mm thickness. this excess Thickness acceptable. 

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