Kennametal beginning of the establishment since 1938, has received more than 500 patents related to carbide manufacturing. To ensure the best quality product from start to finish with, Kenner their smelting, grinding of raw materials, and the flour, pressing, sintering, grinding / polishing, it will give Kennametal has the capacity to produce various grades of flexible materials and finished products in a more Good to meet specific customer requirements. KezizTM patented sintering process is one of Kenner, the use of this unique technology, Kenner become the world's first large-scale production of surface and internal defects in almost no tungsten carbide / carbide materials manufacturer. Unrivaled quality assurance system, testing equipment and industry experience, Kennametal products can reach the level of detection system of military and nuclear industry standards. Kenner's goal is to ensure customers get every time from Kennametal products are the perfect product. 
 General Brand CD-650 is a Kennametal applications in stamping die industry is a classic brand, with excellent cost performance in North America, Europe and China more than ten years of history. 

 CD-650 because of its excellent performance has been widely used in precision stamping dies, CD-KR887 is based on the CD-650, that is maintained CD650 excellent performance, but also shown in the EDM excellent processing performance. 

 CD-KR887 starting point for the design of materials able to withstand the harsh environment of the discharge process. When an ordinary tungsten carbide materials, prolonged exposure to electrical discharge machining environment, the corrosion, pitting and discoloration, and cracks will be exposed to the surface. Such defects will result in the loss of material strength as high as 60%. EDM in the extreme conditions, the CD-KR887 Kennametal material after 100 hours of discharge from the treatment is still no pitting, cracks and discoloration, and in the processing, able to withstand the cooling fluid, the mold lubricant and acid gas corrosion. 

 Higher corrosion resistance - higher than conventional carbide corrosion resistance of 100 times 
 Excellent mechanical properties 
 Outstanding corrosion resistance of electrolytic 
 Chemical Resistance 
 Reduce the discharge processing time 
 HIP and stress release treatment 

 CD-650/CD-KR887 performance and application description 
 Binder phase% grade average grain size of micro hardness HRA Milo average bending strength strength density g/cm3 
 CD-650 15 0.8um 89.0-90.5 14 550,000 650,000 
 CD-KR887 15 0.8 89.7-90.7 14 435,000 700,000 

 Performance: Low impact, excellent wear resistance, high strength 
 Applications: stamping die - razor blades, electronic stamping, lead frame, thin lamination stamping, spring steel stamping, grinding roller, pressure die (hard metal), not suitable for punching thick stainless steel 

 CD-EDM337 + HIP introduction: 
 EDM = EDM optimization: remove the abnormal stress and protect the quality of electronic processing 

 HIP = hot isostatic pressing: to improve the mechanical performance, increase strength, improve optical polishing 

 KENNA METAL Kennametal CD337, the average particle size = 3 um, for the coarse particles of tungsten steel. 

 Especially for thick, stainless steel, aluminum or steel punching sticky. 

 CD-EDM337 + HIP main features: 

 1. High strength 2. High seismic shock 3. In the wear-resistant 4. Good toughness 

 CD-EDM337 + HIP main applications: 

 1. All kinds of thick stamping, deep drawing, forming, stamping, forging die. 
 2. Motor tablets / EI silicon steel stamping, deep drawing can die, the impact of punches, cold forming. 

 3. Thick cold rolled plate drawing die, stainless steel precision punch, cold extrusion, backward extrusion convex mold. 

 CD-EDM337 + HIP physical properties: 

 Kenna Kenna 

 Combination of hardness and density g/cm3 grades based% minimum compressive strength HRAHRC pounds bending strength / in2N/mm2 lb / in2N/mm2 

 CD-EDM337 + HIP 
 88.0-89.0 72.0-74.0 14.3-14.5 11% 420,000 50,000 4,482 2,8966 


 CD-EDM750 + HIP main applications: 

 1. All kinds of sheet / e / lead frame / stator / rotor / spring / silicon steel such as stamping dies. 
 2. Chip packaging mold inserts / guide bush / guide post / push rod drawing / mold / press powder tool. 
 3. Rolling wheel / carbide Indian film, suitable for fine stamping complex shapes, not suitable for stainless steel plate / sheet for stamping. 


 CD-EDM750 + HIP introduction: 
 EDM = EDM optimization: remove the abnormal stress and protect the quality of electronic processing 

 HIP = hot isostatic pressing: to improve the mechanical performance, increase strength, improve optical polishing 

 KENNA METAL Kennametal CD750, the average particle size = 0.6um, for ultra-submicron tungsten steel. 

 CD-EDM750 + HIP physical properties: 

 Kenna Kenna 

 Trademark 
 Hardness 
 Density 

 g/cm3 
 With base 

 % 
 Minimum bending strength 
 Compressive strength 

 HRA 
 HRC 
 Lb / in2 
 N/mm2 
 Lb / in2 
 N/mm2 

 CD-EDM750 + HIP 
 90.0- 

 91.5 
 77.0- 

 79.0 
 13.9- 

 14.1 
 15% 
 600,000 
 4,137 
 725,000 
 4,999 


 CD-EDM636 + HIP introduction: 
 EDM = EDM optimization: remove the abnormal stress and protect the quality of electronic processing 

 HIP = hot isostatic pressing: to improve the mechanical performance, increase strength, improve optical polishing 

 KENNA METAL Kennametal CD636, the average particle size = 0.8um, the sub-micron particles of tungsten steel. 

 CD-EDM636 + HIP main features: 

 1. High-strength 2. Light seismic 3. High wear 4. Sharp edge 

 CD-EDM636 + HIP main applications: 1. All kinds of thin / razor blade / lead frame / stator / rotor / spring such as stamping dies. 
 2. All kinds of tools / mica bit, canning the whole flat die, die rolling, stainless steel deep drawing die. 
 3. Stamping complex shapes for fine, non-sticky steel stamping, is not suitable for stainless steel plate / sheet for stamping. 

 CD-EDM636 + HIP physical properties: 

 Kenna Kenna 

 Trademark 
 Hardness 
 Density 

 g/cm3 
 With base 

 % 
 Minimum bending strength 
 Compressive strength 

 HRA 
 HRC 
 Lb / in2 
 N/mm2 
 Lb / in2 
 N/mm2 

 CD-EDM636 + HIP 
 90.5- 

 91.5 
 77.0- 

 79.0 
 14.4- 

 14.6 
 10% 
 410,000 
 2,827 
 775,000 
 5,343