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HSS Roll
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hss roll cchss roll hss rings hss manufacture mill rolls lonsun roll hss ring for kocks mill cchss hss rolls

HSS Rolls for Hot Strip, Bar and Wire Rod Mills

LONSUN supplies centrifugally cast HSS rolls and rings selected around the mill type, stand position, rolled product, pass design, current roll performance and operating conditions. The objective is not simply higher hardness, but a workable balance of wear stability, profile retention, surface condition and service reliability.

Discuss Your HSS Roll Requirement

HSS rolls, or high-speed steel rolls, are duplex rolls manufactured by vertical centrifugal casting. They combine a high-hardness HSS working layer with a tough nodular-iron core and neck. Grade, hardness, working layer and dimensions must be matched to the mill, stand duty, rolled product, pass design and operating conditions—not selected by hardness alone.

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Cemented carbide rolls have good heat conductivity and they are featured by small hardness decrease under high temperature condition, thermal fatigue resistance, good wear resistance and high strength etc., which are not possessed by other materials. The rolls are primarily applied in high speed wire line, Kocks three roll mill, seamless pipe stretch reducing mill, three dimensional rolls for cold-rolled ribbed steel bar, and composite roll for hot-rolled bar screw thread steel etc.

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lonsun roll adamite roll statice adamite roll roughing stands roll bar mill roll AD180 ROLL

Adamite Rolls and Rings for Roughing and Intermediate Stands

LONSUN supplies Adamite rolls and rings selected around the mill type, stand position, pass design, rolling load, current roll performance and operating conditions. The objective is a practical balance of wear resistance, toughness, fire-crack resistance and reliable mechanical strength.

Discuss Your Adamite Roll Requirement

Adamite is a cast steel roll material with controlled carbon and alloy additions such as nickel, chromium and molybdenum. Products can be made by static monoblock casting or horizontal centrifugal casting according to the roll design and application. Grade, hardness, casting route and dimensions must be matched to the actual stand—not selected from carbon content alone.

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AIC ROLL ICDP ROLL AIC ROLLS ICDP ROLLS INDEFINITE CHILLED ROLLS

ICDP Rolls for Finishing Stands and Thermal-Shock Service

LONSUN supplies alloy indefinite chilled cast iron rolls, also known as AIC or ICDP rolls, for long-product, hot-strip, plate, temper and Steckel mill duties. Selection is based on stand position, hardness, graphite response, surface requirement and the mill’s thermal and mechanical conditions.

Discuss Your ICDP Roll Requirement

ICDP rolls are generally centrifugally cast double-poured rolls with fine graphite in a high-nickel working layer. The graphite supports resistance to thermal shock, while composition and casting practice allow the hardness range to be adjusted for different duties. Final selection must balance wear, surface condition, thermal cycling and incident risk.

SGP ROLL
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lonsun roll ccsgp ccsgp roller nodular pearlitic roll nodular cast iron roll nodular roll sgp roll

SGP Rolls for Roughing and Intermediate Stands

LONSUN supplies nodular pearlitic cast iron rolls, also known as SGP rolls, for section, bar, wire and universal mill duties. Selection is based on stand position, required strength, barrel hardness, graphite and carbide structure, current wear and operating conditions.

Discuss Your SGP Roll Requirement

SGP rolls contain nodular graphite and carbides in a pearlitic matrix. Compared with indefinite chilled cast iron, the graphite changes from flake to spheroidal form, supporting higher strength. SGP rolls can be made by static casting or centrifugal double-pour casting according to the roll design and application.