Cemented Carbide|Tools of processing building materials|Tools of processing building materials|structured electrical contact materials composite clad electrical contact materials electrical contact assemblies AgWCC AgC AgW AgZnO CuW AgNi Electrical contact material Wenzhou Hongfeng Electrical Alloy Co.,Ltd

Products

Tools of processing building materials

Widely used as drilling bits for drilling brick, stone, concrete, ceramic and the like.

Grade	Co.content （%）	Hardness （HRA）	Density (g/cm3)	Bending strength （N/mm2）	Grain size	Application
YG6AX	6.2	93.3	14.80	2600	Fine coarse	Glass cutter, ceramic knife.
DD05A	6	90.5	14.92	2800	Medium grain	Percussion bit with outer diameter less than 10mm.
YG7A	7	91.0	14.85	2800	Medium grain	Electric hammer drill.
DD20A	8.5	90.2	14.68	2700	Medium grain	Its properties are between DD05A and DD10A, and it can be used universally.
DD10A	7.5	88.5	14.78	2800	Coarse grain	Percussion bit with outside diameter more than 10mm.