W20 tungsten steel Density: 14.1g/cm3 Hardness: 88HRA bending strength: 2600N/mm2 Usage: Magnetic molding, precision instruments provide a variety of wear-resistant tungsten steel rod, tungsten steel, tungsten steel, complete varieties. Manufacture of carbide, the selection of the raw material powder particle size of 1 to 2 microns, and high purity. Composition of raw materials required for the ingredients, add alcohol or other media in the wet ball mill wet, making them fully mixed, crushed, dried, sieved by adding wax or gel forming agent such as a class, and then after drying over sieve prepared mixes. Then, the mixture granulation, compression type, heated to near melting point bonding metal (1300 ~ 1500 ℃) when the hardening phase bonding metal will form a eutectic alloy. After cooling, hardening phase distributed in the composition of the bonding metal grid, closely linked to each other to form a solid whole. Depends on the hardness of cemented carbide hardening phase content and grain size, that is the higher content of the hardening phase, the finer the grain, the greater the hardness. The toughness of the bonding metal carbide decision bonding metal content is higher, the bending strength.