Hardness Testing of Tungsten Carbide

Tungsten carbide is made of refractory metal and binder powder by powder metallurgy. Tungsten carbide has a series of good properties, such as high hardness, wear resistance, good strength, heat resistance, and corrosion resistance. Tungsten carbide can keep its properties under the temperature of 500℃ and even 1000℃. So, tungsten carbide can be widely used as tool material, such as turning inserts, milling inserts, grooving inserts, and drills, and applied for cast iron, non-ferrous metals, plastics, fibers, graphite, glass, stones, and common steel. 

After tungsten carbide products are produced, they need to be checked, including a hardness test. In this article, we are going to talk about the hardness testing of tungsten carbide.

1. Methods of tungsten carbide hardness testing;

2. Features of tungsten carbide hardness testing;

3. Tools used during tungsten carbide testing.

Methods of tungsten carbide hardness testing

When we are testing tungsten carbide hardness, we will apply a Rockwell hardness tester to test the HRA hardness value. Tungsten carbide is a kind of metal, and hardness can be applied to know the different chemical composition, organizational structure, and heat treatment process conditions. So, hardness testing can be used to inspect the properties of tungsten carbide, supervise the heat treatment process, and research and develop new materials.

Features of tungsten carbide hardness testing

Hardness testing will not destroy tungsten carbide products and is easy to operate. There is a certain correspondence between hardness and other physical properties of tungsten carbide. For example, the hardness test is to test the ability of the metal to resist plastic deformation. This test can also detect similar properties of metals, the tensile test. While the tungsten carbide tensile test equipment is huge, the operation is complicated, and the test efficiency is low.

Tools used during tungsten carbide testing

When measuring the hardness of tungsten carbide, we always apply the Rockwell hardness tester with an HRA scale or Vickers hardness tester. In practice, we are using a Rockwell hardness tester to test HRA hardness.

ZZBETTER can provide high-quality tungsten carbide and ensure all of them have high hardness because every single product you receive from ZZBETTER is sent after a series of quality checks.

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