As the world's leading manufacturer of cemented carbide, Hyperion Materials & Technologies provides its customers our unique expertise in developing the correct combination of carbide and binding metal powder to optimize your roll application.
Cemented carbides are a range of composite materials, which consist of hard carbide particles bonded together by a metallic binder. The proportion of carbide is generally between 70 and 97% of the total weight of the composite, and its grain sizes average between 0.4 and 10 μm.
Tungsten carbide (WC), the hard phase, together with cobalt (Co), the binder phase, forms the basic cemented carbide structure from which other types of cemented carbide have been developed.
Also, cemented carbides are produced that have the cobalt binder phase alloyed with, or completely replaced by, other metals such as chromium (Cr), nickel (Ni), molybdenum (Mo), or alloys of these elements.
Grades are applied according to performance requirements.
Hyperion composite rolls handle round, square and hexagonal bars, flat strips, rebars, angles and tubes. Pass life up to 20 times (and in some cases even 40) that of ordinary cast iron rolls.
Our tailor made solutions for each rolling mill are adapted according to its current requirements and productivity target. Each element of hot rolling demands specific composites to ensure optimal production. Suggested cemented carbide grades are listed below, and Hyperion's expert personnel are always available to make sure the perfect grade is engineered for you.
|Grade||Composition % by Weight||Average Cemented Carbide Grain Size (µm)||Density (g/cm3)||Hardness @ 20ºC||Transverse Rupture Strength [TRS] @ 20ºC (N/mm2)||Transverse Rupture Energy [TRE] (J)||Compressive Strength (N/mm2)|
|WC||Co Binder||Mixed Binder||HV30||HRA|
|C30T||70||-||30||Extra coarse (5)||12.7||580||81.5||2700||8.0||3000|
|H6T||94||6||-||Extra coarse (5)||14.8||1250||89.0||2300||1.2||4300|
*Cemented carbide is also known as solid carbide and tungsten carbide (WC).