Mill Roll Hardness Structural Investigations Of Hss Rolls Fo

  • Structural Investigations of HSS Rolls for Hot Strip Mill

    Structural Investigations of HSS Rolls for Hot Strip Mill Jacqueline Lecomte-Beckers Jerome Tchoufang Tchuindjang Roger Ernst Jean-Pierre Breyer ABSTRACT High Speed Steel (HSS) cast rollsare used in front finishing standsof hot strip mills (HSM). Good wear resistance and hardnessat high temperatures, are defining featuresof HSS.

  • Structural Investigations of HSS Rolls for Hot Strip

    Structural Investigations of HSS Rolls for Hot Strip Mill . By Jacqueline Lecomte-beckers, Jerome Tchoufang Tchuindjang, (HSM). Good wear resistance and hardness at high temperatures, are defining features of HSS. Previous experience has shown that HSS rolls containing mainly hard MC carbides have a high friction coefficient,

  • Investigations on Heat Treatment of a High-Speed

    17-11-2007· High-carbon high-speed steels (HSS) are very abrasion-resistant materials primarily due to their high hardness MC-type carbide and high hardness martensitic matrix. The effects of quenching and tempering treatment on the microstructure, mechanical properties, and abrasion resistance of centrifugal casting high-carbon HSS roll were studied.

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  • High Speed Steel HSS Rolls Manufacturer HSS

    CASE HSS Rolls are specifically designed and manufactured for bar mills, structure mills, strip mills and rolling mills. High Speed Steel (HSS) Rolls supplied worldwide are known for their extended roll life, quality of end product, efficient and effective roll pass.

  • High Speed Steel Rolls for Rolling Mills

    CASE Group supplies various sizes of HSS Rolls be it for the Roughing/Intermediate/ Finishing sections of a steel rolling mill. These rolls are suitable for Rolling o.. High Speed Steel Rolls for Rolling Mills

  • (PDF) Successful Strategy for HSS Rolls

    High speed steel rolls (HSS) have replaced the traditional high chromium iron rolls (HCI) in many hot strip mills, showing very good results for quality and productivity improvements. This paper describes the evolution in HSS materials for rolls, roll shop and rolling practice changes necessary to accomplish the high speed steel implementation goals in hot strip mills.

  • MBI Rolls

    MBI Rolls, a division of M. Brashem, Inc., has provided the best value for quality, price and service to the steel industry for more than 30 years. We are a leading distributor of mill rolls to the north American steel mill industry, with significant share of the long bar market.

  • An investigation of worn work roll materials used in the

    An investigation of worn work roll materials used in the finishing stands HCr roll, respectively. The HSS work rolls had been used in stands 1, 2 and 4 for 8-215 km (375-5,664 The matrix hardness of the work roll materials was found to be in the range 680-800 HV

  • Structural investigations of HSS rolls for hot strip

    (HSM). Good wear resistance and hardness at high temperatures, are defining features of HSS. Previous experience has shown that HSS rolls containing mainly hard MC carbides have a high friction coefficient, which is detrimental for the rolling power consumption and for the strip surface quality. On the other hand, HSS rolls containing eutectic rod

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  • Physical metallurgy of a HSS material for hot

    Physical metallurgy of a HSS material for hot rolling mill rolls. To decrease the friction coefficient of the HSS rolls, the hardness difference between the carbides and the matrix . Off-line Analysis of the HSS roll Behaviour in the Hot Strip Mill by the Use of a Rolling Load Prediction Model,

  • Structural investigations of HSS rolls for hot

    (HSM). Good wear resistance and hardness at high temperatures, are defining features of HSS. Previous experience has shown that HSS rolls containing mainly hard MC carbides have a high friction coefficient, which is detrimental for the rolling power consumption and for the strip surface quality. On the other hand, HSS rolls containing eutectic rod

  • Physical metallurgy of a HSS material for hot

    Physical metallurgy of a HSS material for hot rolling mill rolls. To decrease the friction coefficient of the HSS rolls, the hardness difference between the carbides and the matrix . Off-line Analysis of the HSS roll Behaviour in the Hot Strip Mill by the Use of a Rolling Load Prediction Model,

  • Development of centrifugal casting high speed

    The results of on-line service investigation in high speed wire rod mill indicate that the HSS rolls have excellent wear resistance, the steel rolling quantity per mm of HSS rolls is 3120 t, the service life-span of HSS rolls is 4 times longer than that of high chromium cast iron rolls and it is close to that of the PM hard alloy rolls.

  • Products & Mill Application MBI Rolls

    MBI Rolls, a division of M. Brashem, Inc., has provided the best value for quality, price and service to the steel industry for more than 30 years. We are a leading distributor of mill rolls to the north American steel mill industry, with significant share of the long bar market. Download PDF

  • HIGH SPEED STEEL ROLLS Tayo Rolls

    HIGH SPEED STEEL ROLLS HSS Shell Photomicrograph (Hs 77-82 °Sh'C The roll is tailor-made for the mill and its application. The working surface is highly Intermediate & Finishing rolls for wire rod m ills, merchant mills & structural mills. Edger rolls for universal beam mills. Finishing rolls for non-ferrous sheet rolling. INDEFINITE

  • Rolling mill Rolls and Roll Shop IspatGuru

    Rolling mill Rolls and Roll Shop Rolls are the main and very costly consumables in a rolling mill. They are used to roll steel in the rolling mill and their performance depend on many factors which include the materials used and the loads to which they are subjected to during service.

  • EOI for ROLLS VIZAG STEEL

    5) The rolls are also to be guaranteed for the roll set life as mentioned in the technical specification of each item or 5 years from the date of supply to VSP which ever is earlier. 6) These rolls are used in hot rolling mill. 7) Hardness test of end ring shall be done and certified for Item nos. 1&2 .

  • (PDF) Recent trends in Hot Strip Mill roughing

    Two alloys grades for work rolls used in the roughing stand of Hot Strip Mill (HSM) are compared. The first grade known as High Chromium Steel (HCS) is presently the most widely used alloy for such an application, while the second one known as semi-High Speed Steel (semi-HSS) is the new grade developed to improve the overall performance of the

  • Cast Steel Rolls ALYORK

    Compound Vertical Roll for Universal Structural Mill Forged Steel Rolls PRODUCTS HARDNESS (HS) JORNAL STRENGTH (MPa) MAIN APPLICATION 2-8% Cr Forged Steel Cold Roll 90-98 >900 Work Roll for Cold Strip Mill 75-85 >900 Intermediate Roll for Cold strip mill SS, Semi-HSS Forged Steel Cold Roll 88-95 >900 Work Roll for Cold Strip Mill 75-85 >900

  • METALLURGICAL APPLICATION TO WORK AND BACK UP ROLLS

    Rolling mills are increasingly demanding rolls capable to maintain the shape and profile much longer with the aim to extend the length of campaigns. The state of the surface is one of the criteria determining the roll change. With the aim to satisfy the mill requirements it is necessary to pay attention to the Kinetic

  • Steel HSS Atlas Tube

    Learn about Wheatland Tube’s American-made steel electrical conduit, standard and fire sprinkler pipe, fence framework, mechanical tube and energy tubulars.

  • Structural causes of defects in a cast iron mill roll

    to mill rolls, which in future will permit one to design a proper microstructure of cast iron mill rolls. Proper microstructure of cast iron mill roll should be shaped at the stage of designing the chemical composition, conditions of crystallization or heat treatment if any.

  • A study of heat treatment of high-boron high

    The highest hardness is obtained while tempering at 525°C. The hardness of high-boron high-speed steel HSS roll is 66.5 HRC, and its impact toughness excels 13.1 J/cm2. Using in pre-finishing stands of high-speed hot wire-rod rolling mill, the wear rate of high-boron HSS rolls

  • Surface and Inner Deformation during Shape Rolling of High

    In the rolling mill, improper shape of the roll groove, worn-out roll surfaces, and guide scratches can be a cause of cracks. rolls and the rolling mill [2]. For end cracking to occur there must be a stress state favoring 1000° F while the cold-hardness at the same time is within the interval 60-66 HRC.

  • PVD coated mill rolls for cold rolling of stainless

    PVD coated mill rolls for cold rolling of stainless steel strips—Tribological and mechanical laboratory tests. Mill roll. Stainless steel. These coatings are known for their very high hardness, much higher than HSS steel; they offer a wide variety of friction coefficients ,

  • ROLLS LIFELINE OF ROLLING MILLS IIM

    ROLLS LIFELINE OF ROLLING MILLS GireeshMadan Manager (Monitoring & Evaluation) Project Management Cell New Delhi. & Structural mill • HIGH SPEED ST EEL ROLL • COMPOSITE ROLLS Tungusten/HSS rings on Nitridedshaft with adequate clamping system

  • Study of the work roll cooling in hot rolling process with

    Study of the work roll cooling in hot rolling process with regard on service life R. Zahradník, J. Hrabovský, considered boundary conditions are based on real measured data from hot rolling mills. Cross-section of the work rolls with the inserts HSS materials and the holes for thermocouple wires (a),

  • Rolls Hitachi Metals

    Hitachi rolls have been supplied to over 90% of steel makers in North America. Recent product developments include expanding sales in the flat rolled market and the structural products market. A plant expansion in Japan increased capacity for powdered metals rolls.

  • Structural integrity of hot strip mill rolling rolls

    Structural integrity of hot strip mill rolling rolls. stresses increase with the rolling load as the strip cools in contact with the rolls of the different stands of the mill. The work roll surface (ICI) or modified indefinite chill iron (MICI) rolls, while high chromium iron (HCI) or nowadays high speed steels (HSS) rolls are used

  • CASE Group Home Facebook

    CASE Group, Charmwood Village, Surajkund. 131 likes. CASE Group page is a credible source to get information on industrial products like cooling towers,...