Cemented carbide has a series of excellent properties such as high hardness, wear resistance, good strength and toughness, heat resistance, and corrosion resistance. In particular, its high hardness and wear resistance remain unchanged even at a temperature of 500°C. , still has high hardness at 1000°C. There are three main types of carbide for cutting tools, carbide for geological mining tools and carbide for wear-resistant parts.

1. Carbide for cutting tools: Carbide for cutting tools is divided into six categories: P, M, K, N, S, and H according to different fields of use;

P-type: Alloy/coating alloy based on TiC and WC, with Co (Ni+Mo, Ni+Co) as a binder. It is often used to process long-chip materials, such as steel, cast steel, and long-cut malleable cast iron. Processing; taking grade P10 as an example, the applicable processing conditions are turning, copy turning, threading, and milling under high cutting speed, medium and small chip cross-section conditions;

Class M: Alloy/coating alloy based on WC, with Co as binder, and a small amount of TiC added. It is commonly used in the processing of stainless steel, cast steel, manganese steel, malleable cast iron, alloy steel, alloy cast iron, etc.; the grade M01 For example, is suitable for fine-tuning and fine boring under high cutting speed, small load, and no vibration conditions.

Class K: Alloy/coating alloy based on WC, with Co as the binder, and adding a small amount of TaC and NbC. It is often used for processing short-chip materials, such as cast iron, chilled cast iron, short-chip malleable cast iron, gray cast iron, etc processing;

N-type: alloy/coating alloy based on WC, with Co as a binder, and a small amount of TaC, NbC, or CrC added. It is often used for processing non-ferrous metals and non-metal materials, such as aluminum, magnesium, plastics, wood, etc processing;

Class S: Alloy/coating alloy based on WC, with Co as binder, and a small amount of TaC, NbC, or TiC added. It is generally used for the processing of heat-resistant and high-quality alloy materials, such as heat-resistant steel, nickel- and cobalt-containing steel. , processing of various titanium alloy materials;

Category H: Alloys/coating alloys based on WC, with Co as the binder, and a small amount of TaC, NbC, or TiC added. They are often used for the processing of hard-cutting materials, such as hardened steel, chilled cast iron, and other materials;

2. Carbide for geological and mining tools: Carbide for geological and mining tools is divided into the following categories according to the different parts of use:

A: Cemented carbide for rock drilling bits; operating conditions such as grade GA05, suitable for soft rock or medium hard rock with a uniaxial compressive strength of less than 60MPa, grade GA50/GA60 suitable for uniaxial compressive strength of greater than 200MPa hard rock or tough rock; as the grade number increases, the wear resistance decreases and the toughness increases.

B: Carbide for geological exploration;

C: Cemented carbide for coal mining;

D: Carbide for mining and oil field drill bits;

E: Cemented carbide for composite sheet matrix;

F: Carbide for snow shoveling;

W: Carbide for digging teeth;

Z: other categories;

The Rockwell hardness of this type of alloy can reach HRA85 and above, and the flexural strength is generally above 1800MPa.

3. Carbide for wear-resistant parts: Wear-resistant parts are divided into

S: Carbide for drawing metal wires, rods, and tubes, such as drawing dies, sealing rings, etc.

T: Carbide for stamping dies, such as breaks for fastener stamping, steel ball stamping, etc.

Q: Carbide for high-temperature and high-pressure components, such as top hammers and press cylinders for synthetic diamonds.

V: Cemented carbide for wire rod rolling roll rings, such as roll rings for high-speed wire rod rolling finishing mills, etc.