Half steel is a material with mechanical properties and carbon content between steel and iron. Due to its alloying elements such as Ni, Cr, Mo, etc., there is a certain amount of carbon compounds in the matrix, and through a certain special heat treatment process, high wear resistance, good toughness, and excellent fire cracking resistance have been obtained. The biggest advantage of these rollers is that there is almost no hardness gradient in the working layer. These rolling mills are used for the front stands of the roughing and finishing mills of hot-rolled strip mills, the roughing stands, intermediate stands, and pre finishing stands of bar and wire mills, and the roller rings and roller sleeves of universal rolling mills and cantilever rolling mills.
Chemical Composition%
Model | Carbon | Silicon | Manganese | Chromium | Nickel | Molybdenum |
AD140 I | 1.30-1.50 | 0.30-0.60 | 0.70-1.10 | 0.80-1.20 | 0.50-1.10 | 0.20-0.60 |
AD160 I | 1.50-1.70 | 0.30-0.60 | 0.80-1.30 | 0.80-2.00 | ≥0.20 | 0.20-0.60 |
AD180-AD200 | 1.70-2.10 | 0.30-0.80 | 0.60-1.20 | 0.80-3.50 | 0.50-2.50 | 0.20-0.80 |
ADGT | 1.40-1.60 | 0.30-0.80 | 0.70-1.50 | 1.00-2.00 | 1.00-3.00 | 0.40-0.80 |