Product Name: Yl10.2 K20 K40 Tungsten Carbide Rods Model NO.: OD 3~50 Application: metal Cutting Machine, metal Processing Machinery Parts, metal Engraving Machinery Material: Alloy Customized: Standard Certification: ISO9001 Condition: New Raw Material: Tungsten Carbide Hra: 92.2 Grain Size: 0.8 for Cutting: Stainless Steel, Heat Resistant, Cast Iron Advantage: Stable Performance and Reasonable Price Stock: 200 Tons Delivery: Within 3 Days Trademark: zzhuijin Transport Package: Cartons or Wooden Cases Specification: tungsten carbide Origin: China HS Code: 8209002100 Product Description With high hardness and wear / corrosion resistance, suitable for the manufacturing of various kind of solidcementedcarbide tools for the machining of heat-resistant ally and Ti alloy,also suitable for the manufacturing of micro drills usedfor machining PCB.ISOCodeCo%DensityHardnessTransverseRuptureHV30HRAK106%14.8g/cm³1930N/mm²94.04100MPa6%14.9g/cm³1700N/mm²92.43000MPa6%14.93g/cm³1500N/mm²91.02600MPaK10-K208%14.6g/cm³1900N/mm²93.74200MPa8%14.8g/cm³1500N/mm²91.03800MPaK2O-K30(HotSale)10%14.4g/cm³1650N/mm²92.24400MPa10%14.08g/cm³1500N/mm²91.03300~3700MpaK30-K4012%14.1g/cm³1700N/mm²92.5 4100MPaK5015%14.0g/cm³1150N/mm²87.52800MPaApplication:Used in welding/ making the drill bits/ endmills / reamers .automobile special cutters, printed circuit board special cutters, engine special cutters, Horologe processing special cutters, integral vertical milling cutter, graver and etc. Besides, they can bu used for making of cemented carbide stamping head, Core bar and perforation tools.The Specification Range of extruded Grounded Tungsten Carbide Rod :WC Grain size range: 0.3~0.5μ.m; 0.5~0.9μ.m; 1.0~1.3μ.m; 1.4~2.0μ.m.Length range:3mm-600mm; (General Length: 100mm,300mm,320mm,330mm)Diameter Grade: h4(H4), h5(H5), h6(H6), h7(H7), h8(H8), h9(H9), etc.Good grinding machine to ensure the sphencity & the Linearity of rod at higher level standard;Sphericity tolerance range: 0.001mm ~ 0.005mm;Linearity tolerance range: 0.001mm~0.1mm;Surface Roughness can be reached to: RA0.04.(reach a mirror effect surface after fine grinding)Sphericitytolerance&Circularrun-outforGroundedTungstenCarbideRod:DiameterSurfaceRoughnessSphericityCircularrun-out2--6mmRA0.040.001↑0.16.5-10mmRA0.040.001↑0.110.5-14mmRA0.040.002↑0.114.5-20mmRA0.040.004↑0.05>20mmRA0.040.005↑0.03ISO286-2CarbideRoundBarTolerances"hSeries"inMillimeters:Diameterh4h6h9h110-3.0mm0/-0.0030/-0.0060/-0.0250/0.0063.001-6.0mm0/-0.0040/-0.0080/-0.030/0.0086.001-10.0mm0/-0.0040/-0.0090/-0.0360/0.00910.001-18.0mm0/-0.0050/-0.0110/-0.0430/0.01118.001-30.0mm0/-0.0060/-0.0130/-0.0130/0.01330.001-50.0mm0/-0.0070/-0.0160/-0.0520/0.01650.001-60.0mm0/-0.0080/-0.0190/-0.0620/0.019Carbide productionThe productionprocess of powder-metallurgical products basically includes the four steps of powder preparation, forming, sintering andfinishing.Tungsten carbide productionThe APT (ammonium para-tungstate) is calcined into tungsten oxide under high te-mperature. Subsequently the oxide is reduced to tungsten metal in a hydrogen atmosphere. The metal powder is then mixed with carbon and carburised under inert atmosphere at high temperatures. The production parameters are decisive for the WC grain size in the sintered carbide.Powder preparationThe tungsten carbide is intensely mixed with the binder metal cobalt, nickel or iron, various grain growth inhibitors and materials,which promote compaction, by wet grinding so that a homogeneous suspension is created. Afterwards, the suspension is dried in a spray tower to produce a granulate with good flow characteristics. This granulate represents the basis for all forming processes.metal formingThe objective of the forming process is to obtain a near net shape sample. Pressing is normally carried out at room temperature with pressures reaching up to several tons per square centimetre.There are several ways of pressing blanks:During isostatic cold pressing the powder is filled into an elastic flexible hose and pressed into acompacted form through high liquid pressure. The powder blocks which are produced in this way can then be processed mechanically. All common machining methods like milling, cutting, drilling or turning maybe applied.In uniaxial pressing the pressing tool consists of a die and an upper and a lower punch. The carbide powder is filled into the die and then compacted to create the so called green carbide,which is ejected from the pressing die.Extrusion pressing is mainly used to produce rectangular baror cylindrical rod, with or without axial hole(s). A plasticiser is added to the powder. The resulting paste is pressed through an extrusion nozzle. Before sintering, the plasticiser must be evaporated in special drying furnaces. metal Injection Moulding (MIM) is a process used to producemore complex forms which cannot be produced by direct pressing. The paste preparation is similar to the extrusion process.Sintering processThe sintering process converts the blank into a homogeneous and dense carbide with a high level of hardness. The material is sintered at temperatures between 1,300 and 1,500 °C (liquid phase sintering) and sometimes also at high pressure (up to 100 bar). The volume is reduced by up to 50 % during this process.FinishingIn order to achieve the final requirements of surface finish, tolerances,etc. carbide parts can be subjected to a series of finishing processes such as grinding, spark erosion and coating.Zhuzhou HuijinCemented carbideCo., Ltd is located in Zhuzhou City, Hunan Province, China, where is the largest tungsten carbide producing area in China.Our mainpr-oducts inclue: Tungsten carbide rods, carbide strips, carbide dies and bushes, tungsten carbide roll rings, carbide disc cutters, carbide end mill cutters, carbidestud and pins, tungsten water jet cutters, precision tools, tungsten carbide grits and powder, welding rods, ceramet inserts, PCD and CBN tools, non-standard and deep-processing products and so on. We also provide very good quality of boron carbide, silicon carbide nozzles.Technology and Quality creates a bright future.Looking forward to your cooperation!Our company gathered the professional staff members for designing, producing and saling. Our workers are well trained and experienced. Our team is honest, positive, keeping promise, working hard and carefully. We sincerely hope we can provide our clients with good quality, moderate price together with professional service. We have advanced equipment, test facilities and professional employees. We strictly carry on ISO9001: 2008 requirements to guarantee the quality.