Abstract. In modern industry information technology and electronic system design, simulation, control systems, production flows, systems of control and accounting of production resources are playing a growing role. Metallurgical production isn't an exception too. There is a task in the section and long product rolling companies associated with the shipment of finishing product by gage lengths. From the experience of production long product with a simple shape it is known that over a third of the cases of rejection of products is off-gage length. The application of mathematical modeling based on the use of modern information technologies contributes to the efficiency of solving such problems.
Keywords: off-gage length, not custom length, off-gage balance, measuring length, cut, varying cross-sectional area of the finished product, reducing metal losses, increasing efficiency of the rolling production, variation of the roll gap, information technologies, optimization technology of the cutting, long products rolling, section-rolling production, quality of the process, yield ratio, effectiveness.