There are three types of hard alloys, among which tungsten cobalt titanium is a brittle hard alloy？

Hard alloys are divided into tungsten cobalt, tungsten titanium, and tungsten titanium tantalum cobalt. Tungsten cobalt titanium is a brittle hard alloy.

1. Tungsten cobalt hard alloy cutting tools include YG6, YG8, YG8N, etc. These hard alloy cutting tools are suitable for processing materials such as non-ferrous metals, stainless steel, cast iron, etc;

2. Tungsten titanium hard alloy cutting tools include YT5, YT15, etc. These types of hard alloy cutting tools are suitable for processing tough materials such as steel;

3. Tungsten titanium tantalum cobalt hard alloy cutting tools include YW1, YW2, YS25, WS30, etc. These types of hard alloy cutting tools are suitable for processing difficult to machine materials such as heat-resistant steel, high manganese steel, stainless steel, etc.

Performance characteristics

1. High hardness (86-93HRA, equivalent to 69-81HRC);

2. Good thermal hardness (up to 900-1000 ℃, maintained at 60HRC);

3. Good wear resistance.

Hard alloy cutting tools have a cutting speed 4-7 times higher than high-speed steel, and a tool life 5-80 times longer. Manufacturing molds and measuring tools, with a lifespan 20-150 times longer than alloy tool steel. Can cut hard materials of around 50HRC.

However, hard alloys have high brittleness and cannot be machined, making it difficult to produce complex shaped integral cutting tools. Therefore, different shaped blades are often made and installed on the cutting body or mold using methods such as welding, bonding, and mechanical clamping.

Alloy classification

1. Tungsten cobalt hard alloys

The main components are tungsten carbide (WC) and binder cobalt (Co).

Its brand name is composed of "YG" (the initials of "hard" and "cobalt" in Chinese Pinyin) and the percentage of average cobalt content.

For example, YG8 represents an average WCo of 8%, with the rest being tungsten carbide based tungsten cobalt hard alloys.

Generally, tungsten cobalt alloys are mainly used for hard alloy cutting tools, molds, and geological and mining products.

2. Tungsten titanium cobalt hard alloys

The main components are tungsten carbide, titanium carbide (TiC), and cobalt. Its brand name consists of "YT" (the initials of "hard" and "titanium" in Chinese Pinyin) and the average content of titanium carbide.

For example, YT15 represents an average TiC of 15%, while the rest are tungsten titanium cobalt hard alloys with tungsten carbide and cobalt content.

3. Tungsten titanium tantalum (niobium) based hard alloys

The main components are tungsten carbide, titanium carbide, tantalum carbide (or niobium carbide), and cobalt. This type of hard alloy is also known as universal hard alloy or universal hard alloy.

Its brand name is composed of "YW" (the prefix of "hard" and "ten thousand" in Chinese Pinyin) followed by a sequential number, such as YW1.