4.2　Products

4.2.1　The product specifications for rolling mills in different specifications and at different ratings can be determined according to the specification ranges listed in the following table 4.2.1，and the product thickness，width，length and maximum unit weight can be adjusted appropriately according to the market demand and the conditions of product varieties，material supply，and equipment configuration，etc.

Table 4.2.1　Product specification ranges of rolling mills in different specifications and at different ratings

Note:The maximum unit weight refers to the maximum unit weight of slab if the blank is continuous casting slab（one slab for one plate）.

4.2.2　Where a slitting shear or flame cutting machine is arranged in a 4，300mm or larger plant，the minimum delivery width of the steel plates can be 900mm.

4.2.3　The product specifications and outputs under different delivered conditions，such as conventional rolling，control rolling，and heat treatment，etc.，shall be determined in the design.The product output of a new rolling mill in control rolling and control cooling mode shall be designed to be greater than 30%.

4.2.4　The product quality bases for the design，including dimensions，profile and permissible deviation，exterior and interior quality，chemical composition，mechanical properties，processing properties，and metallurgical structure，etc.，shall meet the requirements in applicable current national codes and standards.