Are you interested in the density and specific heat capacity of roll steel? The supplier Evek GmbH offers to buy roll steel in any quantity at an affordable price in a wide range. We provide delivery of products to any point on the continent. The price is optimal.

Technical features

Rolling rolls of hot or cold rolling mills are made from a separate group of tool steel alloys. Rolling rolls are characterized by uniformly and progressively increasing (and then decreasing) processing forces. The strain rate of the metal during the rolling process is also relatively low, as well as the specific pressure per unit surface of the roll. Evek GmbH offers to buy roll steel at an affordable price in a wide range. We provide delivery of products to any point on the continent. The price is optimal.

Alloying

That is why medium carbon steels with high chromium content are used as roll steels to give the surface the necessary hardness against spalling and (for hot rolling mill rolls) vanadium. Nickel increases the ductility of these steels, and for rolling high-strength steels, roll steels with a higher percentage of manganese, silicon and carbon are used. In fact, roll steels form a subgroup of low-alloy tool steels.

The main properties of roll steels are

• High hardenability after heat treatment, for which it is important to complete the martensitic transformation at relatively low rates of cooling of blanks. This is achieved by minimum required (not less than 0.55...0.60%) percentage of carbon, as well as the presence of silicon and - preferably - boron. Through hardenability of the entire cross-section of the rolled roll makes it necessary operational durability;
• High resistance to contact stresses, which occur in the starting stages of rolling, with the starting stands of rolling mills being subject to higher contact stresses than other rolling stands;
• Minimal material susceptibility to warping and distortion during heat treatment, due to manganese and silicon content in the steels
• The possibility of good machining on metal-cutting (in particular, grinding) machines, in order to achieve a minimum roughness of the surface, Achieved by increased, compared to the usual, tolerances for the percentage of sulfur;
• Theabsence of non-metallic solid inclusions (hydrides, nitrides, aluminum dioxide, etc.), which contribute to the fatigue of the rolls during their operation.

Buy. Supplier, price.

Are you interested in the density and specific heat of roll steel? The supplier Evek GmbH offers to buy roll steel in any quantity at the manufacturer's price. We provide delivery of products anywhere in the continent. The price is optimal. We invite you to partner cooperation.