The forged steel rolls for cold mills are widely applied to work rolls, intermediate rolls and back up rolls. The good performance of Lonsun rolls thanks to the high and homogeneous hardness in the work layer with superior wear ability, high toughness and excellence resistance to accident, and the depth of hardness layer may be over 30mm.

The forged steel rolls for hot mills are manufactured by forged steel blanks with special heat treatment is applied to make rolls in satisfactory barrel hardness and hardening depth. The forged rolls for hot mills have good wear-ability, high toughness and excellent biting ability.

Forged steel rolls are widely applied to hot rolling mills and cold rolling mills. The forged steel rolls for hot mills are manufactured by forged steel blanks with special heat treatment is applied to make rolls in satisfactory barrel hardness and hardening depth. The forged rolls for hot mills have good wear-ability, high toughness and excellent biting ability. The forged steel rolls for cold mills are widely applied to work rolls, intermediate rolls and back up rolls. The good performance of Lonsun rolls thanks to the high and homogeneous hardness in the work layer with superior wear ability, high toughness and excellence resistance to accident, and the depth of hardness layer may be over 30mm.

Graphite steel rolls are composed mainly of pearlite with spherical graphite and some carbide. Graphite steel rolls are stronger than cast iron rolls and harder than other steel rolls. The feature of graphite rolls that is better resistance to fire crack and scale adhesion.

Enhanced ICDP roll are developed based on ICDP rolls. The microstructure consists of a bainitic / martensitic matrix with Fe3C and MC carbides homogeneously distributed and a certain amount of free graphite fine and also well distributed in the matrix.The rolls are double tempered to avoid retained Austenite and to obtain the right hardness level and the optimum residual stress level.