The size, shape and allowable deviation of ABS grade A steel plate shall comply with the regulations of GB/T709, but the negative deviation of ABS grade A steel plate thickness shall be no more than 0.3mm.
ABS grade A steel plate shall be delivered according to theoretical weight. With the consent of the demander and negotiation between the supplier and the demander, the nominal thickness plus added value can be used as the theoretical thickness for calculating the theoretical weight.
The thickness added value of ABS grade A steel plate is calculated as follows: thickness added value tolerance value /2-0.3mm, thickness added value -/2 stipulated tolerance, is positive deviation plus negative deviation absolute value.
Note: The tolerance value of ABS grade A steel plate refers to the tolerance specified in GB/T709, and is the absolute value of positive deviation plus negative deviation. The size, shape, weight and allowable deviation of the section steel shall conform to the relevant standards.