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Shijiazhuang BKDR Metallurgical Science & Technology Co.,Ltd

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    • Semi High Speed Steel Rolls
    • Semi High Speed Steel Rolls

    Semi High Speed Steel Rolls

    • Brand: Zhengkun
    • Packaging: Inner plastic film and outer corrugated sheet, in steel case
    • Supply Ability: 1000mt/month
    • Min. Order: 5 Piece/Pieces
    • Barrel Diameter: 1500mm Maximum: Unit Weight: 25mt Maximum
    Semi High Speed Steel Rolls Semi High Speed Steel Rolls is similar as High Speed Steel Rolls but its alloy elements of Mo V W is a little lower and its mechanical properties is lower too But it have a more competitive price than HSS Rolls These types of rolls are used for roughing stand to increase productivity...
    • High Chromium Iron Rolls

    High Chromium Iron Rolls

    • Brand: ZK
    • Packaging: Inner plastic film and outer corrugated sheet, in steel case
    • Supply Ability: 1000mt/month
    • Min. Order: 5 Piece/Pieces
    • Barrel Diameter: 1500mm Maximum: Unit Weight: 25mt Maximum
    High Chromium Rolls This type of rolls is High Chromium Centrifugal Duplex Rolls produced from high alloy material whose microstructure is martensite and chrome carbides the core of the rolls is filled with spheroidal graphite cast iron Application Work rolls for hot strip mill finishing front stand Chemical...
    • High Chromium Iron Rolls
    • High Chromium Iron Rolls
    • High Chromium Iron Rolls

    High Chromium Iron Rolls

    • Brand: Zhengkun
    • Packaging: Inner plastic film and outer corrugated sheet, in steel case
    • Supply Ability: 1000mt/month
    • Min. Order: 5 Piece/Pieces
    • Barrel Diameter: 1500mm Maximum: Unit Weight: 25mt Maximum
    High Chromium Rolls This type of rolls is High Chromium Centrifugal Duplex Rolls produced from high alloy material whose microstructure is bainite and chrome carbides the core of the rolls is filled with spheroidal graphite cast iron Application Work rolls Vertical Rolls Skin Pass Rolls for hot strip mills Chemical...
    • Graphite Cast Steel Rolls

    Graphite Cast Steel Rolls

    • Brand: Zhengkun
    • Packaging: Inner plastic film and outer corrugated sheet, in steel case
    • Supply Ability: 1000mt/month
    • Min. Order: 5 Piece/Pieces
    • Barrel Diameter: 1500mm Maximum: Unit Weight: 25mt Maximum
    Graphite Steel Rolls The characteristics of Graphite Steel Rolls are similar to those of Adamite Rolls The main character is that it contains a small amount of fine graphite in its microstructure which will increase its resistance to fire crack and prevent oxidized scales from adhering They are suitable for blooming...
    • Forged Steel Backup Rolls
    • Forged Steel Backup Rolls

    Forged Steel Backup Rolls

    • Brand: Zhengkun
    • Packaging: Inner plastic film and outer corrugated sheet, in steel case
    • Supply Ability: 1000mt/month
    • Min. Order: 5 Piece/Pieces
    • Barrel Diameter: 1500mm Maximum: Unit Weight: 25mt Maximum
    Forged Steel Backup Rolls mainly used in normal four high mills the diameter of roll body is between 350mm 1500mm The material of Backup Rolls include 60CrMo 9Cr2Mo 86CrMoV7 70Cr3Mo etc The harding depth depend on the material and heat treatment usually is 15 40mm and the hardness difference between Backup Rolls and...
    • Forging Steel Work Rolls
    • Forging Steel Work Rolls

    Forging Steel Work Rolls

    • Brand: Zhengkun
    • Packaging: Inner plastic film and outer corrugated sheet, in steel case
    • Supply Ability: 1000mt/month
    • Min. Order: 2 Piece/Pieces
    • Barrel Diameter: 1500mm Maximum: Unit Weight: 25mt Maximum
    Forged Steel Work Rolls causes the metal to deform under normal temperature also the most consumed parts during the cold rolling process The popular material is 2Cr 3Cr 5Cr The hardness of the rolls is different when rolling different products the hardness of the Forged Steel Work Rolls is about 85 102 HSD the harding...
    • Section Mill Roll Sleeves
    • Section Mill Roll Sleeves

    Section Mill Roll Sleeves

    • Brand: Zhengkun
    • Packaging: Inner plastic film and outer corrugated sheet, in steel case
    • Supply Ability: 1000mt/month
    • Min. Order: 2 Piece/Pieces
    • Barrel Diameter: 1500mm Maximum: Unit Weight: 10mt Maximum
    Section Mill Roll Sleeves have vertical type and horizontal type it is formed in the high temperature state and has high thermal strength high thermal stability excellent wearability and resistance to thermal fatigue and temper stability Usually used for Section Mill or profile steel mill etc Material Adamite High Cr...
    • Enhanced Indefinite Chill Cast Iron Rolls
    • Enhanced Indefinite Chill Cast Iron Rolls

    Enhanced Indefinite Chill Cast Iron Rolls

    • Brand: Zhengkun
    • Packaging: Inner plastic film and outer corrugated sheet, in steel case
    • Supply Ability: 1000mt/month
    • Min. Order: 5 Piece/Pieces
    • Barrel Diameter: 1500mm Maximum: Unit Weight: 25mt Maximum
    Enhanced Indefinite Chill Cast Iron Rolls The enhanced indefinite chilled cast iron roll is developed basing on the traditional ICDP By adding the element of V W Ti Nb the wear resistance of the En IDCP is improved By the graphite formed inside the material En ICDP gets a better performance to prevent the thermal...
    • Pearlitic Nodular Cast Iron Rolls
    • Pearlitic Nodular Cast Iron Rolls

    Pearlitic Nodular Cast Iron Rolls

    • Brand: Zhengkun
    • Packaging: Inner plastic film and outer corrugated sheet, in steel case
    • Supply Ability: 1000mt/month
    • Min. Order: 5 Piece/Pieces
    • Barrel Diameter: 1500mm Maximum: Unit Weight: 25mt Maximum
    Pearlitic Nodular Cast Iron Rolls Pearlitic nodular rolls are obtained by adding alloy elements of Ni Cr Mo into the nodular cast iron and following special heat treatment Pearlitic nodular rolls have high strength good thermal properties and resistance to emergencies as well as small hardness gradient of working...
    • Tungsten Carbide Rolls Ring

    Tungsten Carbide Rolls Ring

    • Brand: Zhengkun
    • Packaging: Inner plastic film and outer corrugated sheet, in steel case
    • Supply Ability: 1000mt/month
    • Min. Order: 5 Piece/Pieces
    • Barrel Diameter: 700mm Maximum: Unit Weight: 10mt Maximum
    Tungsten Carbide Rolls Ring Tungsten carbide roller ring is a kind of metallurgical tool which consists of tungsten carbide and cobalt with high hardness and wear resistance It has advantage of high wear resistance long life and high efficiency during the high speed rolling FAQ Q Who we are A We are a professional...
    • Cored Wire For Steelmaking
    • Cored Wire For Steelmaking

    Cored Wire For Steelmaking

    • Packaging: On pallets
    • Supply Ability: 1000mt/month
    • Min. Order: 5 Metric Ton
    • Product Type: Wire
    • Carbon Content: Low Carbon
    There are many advantages when using Cored Wire for Steel Making Adjusting steel ingredients accurately Improving alloy receiving Avoiding gas into steel liquids To let steel liquid react stably and make it more purity Strong adaptability and wide applications Convenient operation and maintaining environment without...
    • Centrifugal Slurry Pump for Copper Mining

    Centrifugal Slurry Pump for Copper Mining

    • Min. Order: 1 Set/Sets
    • Impeller Number: Single-Stage Pump
    • Working Pressure: Middle Pressure Pump
    • Influent Type of Impeller: Single Suction Pump
    • Position of Pump Shaft: Horizontal Pump
    Centrifugal Slurry Pump for Copper Mining Copper Mining Slurry Pump is used to transport slurries of corrosive or high hardness solid particles in copper mining industry This kind of slurry pump adopts double Casing Structure have high efficiency wear resistant stable performance interchangeability of parts The lining...
    • Ferro Silicon Grade 75%
    • Ferro Silicon Grade 75%

    Ferro Silicon Grade 75%

    • Packaging: 1mt big bag
    • Supply Ability: 2000mt/month
    • Min. Order: 25 Metric Ton
    • Product Type: Lump
    • Material: FeSi
    Ferro Silicon 75 In the manufacture of cast iron Ferro Silicon 75 is used for inoculation of the iron to accelerate graphitization In arc welding Ferro Silicon 75 can be found in some electrode coatings FeSi Si Content 75 is a basis for manufacture of pre alloys like magnesium ferro silicon Grade FeSi 75 Size 3 10mm...
    • Ferro Silicon Grade 72%
    • Ferro Silicon Grade 72%

    Ferro Silicon Grade 72%

    • Packaging: 1mt big bag
    • Supply Ability: 2000mt/month
    • Min. Order: 25 Metric Ton
    • Product Type: Lump
    • Material: FeSi
    Ferro Silicon 72 Ferro Silicon 72 is used as a source of silicon to reduce metals from their oxides and to deoxidize steel and other ferrous alloys This prevents the loss of carbon from the molten steel Ferro Silicon Grade 72 is also used for manufacture of silicon corrosion resistant and high temperature resistant...
    • Section Mill Roll Collar
    • Section Mill Roll Collar

    Section Mill Roll Collar

    • Brand: Zhengkun
    • Packaging: Inner plastic film and outer corrugated sheet, in steel case
    • Supply Ability: 1000mt/month
    • Min. Order: 2 Piece/Pieces
    • Barrel Diameter: 1500mm Maximum: Unit Weight: 10mt Maximum
    Section Mill Roll Collar can be produced by static casting or centrifugal casting The Strength of the Roll Collar depend on the material of the collar and the depth of the groove The width of the roll collar usually depend on the experience For Middle and small mills the wide can be 50 100mm For three high blooming...
    • Enhanced High Cr Rolls
    • Enhanced High Cr Rolls
    • Enhanced High Cr Rolls

    Enhanced High Cr Rolls

    • Brand: Zhengkun
    • Packaging: Inner plastic film and outer corrugated sheet, in steel case
    • Supply Ability: 1000mt/month
    • Min. Order: 5 Piece/Pieces
    • Barrel Diameter: 1500mm Maximum: Unit Weight: 25mt Maximum
    Based on the normal High Chrome Rolls our company re changed the chemical components adopt more advanced modification technique to treat the molten iron and use three layer compound casting method so the Enhanced High Cr Rolls have a better abrasive resistance and thermal shock resistance than normal High Cr Rolls and...
    • Adamite Rolls For Rouging Stand
    • Adamite Rolls For Rouging Stand
    • Adamite Rolls For Rouging Stand

    Adamite Rolls For Rouging Stand

    • Brand: Zhengkun
    • Packaging: Inner plastic film and outer corrugated sheet, in steel case
    • Supply Ability: 1000mt/month
    • Min. Order: 5 Piece/Pieces
    • Barrel Diameter: 1500mm Maximum: Unit Weight: 25mt Maximum
    Adamite Rolls Adamite is a material mechanical properties and carbon content of which stands between steel and iron Owing to its alloy elements such as Ni Cr Mo etc there are some amount of carbides in the matrix and because of certain special heat treatment technology high wearability good toughness and excellent...
    • High Chrome Cast Steel Rolls

    High Chrome Cast Steel Rolls

    • Brand: Zhengkun
    • Packaging: Inner plastic film and outer corrugated sheet, in steel case
    • Supply Ability: 1000mt/month
    • Min. Order: 5 Piece/Pieces
    • Barrel Diameter: 1500mm Maximum: Unit Weight: 25mt Maximum
    High Chrome Cast Steel Rolls High Chromium Cast steel roll is manufacturerd with special process of triple casting and double duplex technology High chromium cast steel roll is characterized by high nipping capability high thermal resistance and high wear resistance The Barrel hardness is between 70 85 It is widely...
    • Indefinite Chilled Cast Iron Rolls
    • Indefinite Chilled Cast Iron Rolls
    • Indefinite Chilled Cast Iron Rolls

    Indefinite Chilled Cast Iron Rolls

    • Brand: Zhengkun
    • Packaging: Inner plastic film and outer corrugated sheet, in steel case
    • Supply Ability: 1000mt/month
    • Min. Order: 5 Piece/Pieces
    • Barrel Diameter: 1500mm Maximum: Unit Weight: 25mt Maximum
    Indefinite Chilled Cast Iron Rolls Alloy Indefinite Chilled Cast Iron Rolls is a cast iron with fine inter crystalline graphite evenly distributed throughout the working layer of roll barrel The addition of alloy elements such as Manganese Nickel Chromium and Molybdenum changes the matrix microstructure from pearlite...
    • Hot Strip Back-up Rolls
    • Hot Strip Back-up Rolls

    Hot Strip Back-up Rolls

    • Brand: Zhengkun
    • Packaging: Inner plastic film and outer corrugated sheet, in steel case
    • Supply Ability: 1000mt/month
    • Min. Order: 2 Piece/Pieces
    • Barrel Diameter: 1500mm Maximum: Unit Weight: 25mt Maximum
    Hot Strip Back up Rolls Application Back up rolls for roughing mill and finishing rolls hot strip mill hot plate mill continuous hot strip mill heavy plate mill Material Duplex cast steel adamite chromium 3 chromium 4 chromium 5 or as per the customer s requirement Barrel Diameter 1500mm maximum Unit weight 25mt pc...