VK3 plate, hard alloy
Supplier — AvekGlob company — offers at affordable prices from the manufacturer plates made of a solid alloy grade VK3. The supplier guarantees the timely delivery of products to any address specified by the consumer /
The hard alloy VK3 is a highly melting compound of solid, ceramic tungsten carbide with viscous cobalt. This material is a composite of a metal matrix in which cobalt particles are placed in a matrix of tungsten carbide. Tungsten carbide may have the formula WC or WC 2, depending on the synthesis conditions.
A characteristic feature of this alloy is high strength, compression and hardness resistance, high electrical and thermal conductivity, with low ductility, toughness and shear resistance. The closest European analogue of the material is the solid alloy HG012.
Urgency of application
The VK3 grade alloy is used in the manufacture of particularly strong tooling by pressing and sintering into plates. To increase strength and rigidity, surface coatings are used. The VK3 alloy is sensitive to bending loads, and therefore is used primarily in machining processes of axisymmetric billets.
In accordance with the technical requirements of GOST 3882−74, the plates of alloy VK3 have the following composition:
Tungsten carbide — 97%;
Cobalt — 3%.
Physical and mechanical properties
The melting point is 2867 ° C;
Ultimate strength, MPa — 1176;
Density, kg / m 3 — 15000… 15300;
Bending strength, MPa — 1200;
Compressive strength, MPa — 5600;
Modulus of elasticity, GPa — 680;
Hardness according to Rockwell (scale A), not less than 89.5;
Impact strength, kJ / m 2 — 12,7.
Assortment and properties
The hard alloy VK3 is obtained by sintering the billet according to the dimensions of the initial mold taking into account the shrinkage. Available plates, discs and cylinders of various sizes. It is possible to obtain plasticized plates, previously sintered at high temperature. To obtain the final product it is necessary to use the technologies of electric spark, electric-arc or anodic-mechanical treatment.
Supplier — AvekGlob Company — offers to buy at affordable prices from the manufacturers plates that are made of a solid alloy grade VK3 Products can be bought at a price formed on the basis of European and world standards of production. Implementation is possible in bulk and retail, for regular customers, a flexible system of discounts operates.