cast iron roll

Juncheng Corporation was found in 2011 at Changde city, China. We are commited to making and supplying rolls for plain steel and long steel both hot and cold rolling mills 12 years. Steel and iron rolls production capacity: 100,000 Tons/year; Rolls max size: 8m long, 1.6 m dia. ,barrel length 2.6m and max weight 55 tons .

Grade properties: Adding more Ni and Mo alloys to ductile iron can obtain excellent pearlite, bainite, and martensite matrix structures, while graphite is spherical in shape, has good thermal conductivity, and has high tensile strength. By changing the structure to Bainite The chemical composition and heat treatment process of solid, martensite and acicular ductile iron can obtain very dense network of primary cementite to improve wear resistance.

Grade properties: Adding more Ni and Mo alloys to ductile iron can obtain excellent pearlite, bainite, and martensite matrix structures, while graphite is spherical in shape, has good thermal conductivity, and has high tensile strength. By changing the structure to Bainite The chemical composition and heat treatment process of solid, martensite and acicular ductile iron can obtain very dense network of primary cementite to improve wear resistance.

Grade properties: The eutectic carbide (M7C3 type) in the structure accounts for 20%-30% and is in the form of intermittent network, so the roll has high wear resistance. The matrix structure is composed of tempered martensite and sorbite, with fine and dispersed secondary carbides (M23C6 type) distributed on it, thus increasing the wear resistance of the roll. The Cr203-rich film covering the surface of the roll has high-temperature oxidation strength and plastic deformation resistance, making this type of roll particularly suitable for hot rolling of steel.