What is high carbon steel?
High carbon steel, often called tool steel, contains carbon from 0.60% to 1.70% and can be quenched and tempered. Hammers, crowbars, etc. are made of steel with a carbon content of 0.75%; cutting tools such as drills, taps, reamers, etc. are made of steel with a carbon content of 0.90% to 1.00%.
After appropriate heat treatment or cold drawing hardening, high carbon steel has high strength and hardness, high elastic limit and fatigue limit, and its cutting performance is acceptable, but its welding performance and cold plastic deformation ability are poor. Due to the high carbon content, cracks are prone to occur during water quenching, so double-liquid quenching is often used, and oil quenching is often used for small-section parts. This type of steel is generally used after quenching, tempering or normalizing at medium temperature, or in a surface quenching state. Mainly used for manufacturing springs and wear-resistant parts. Carbon tool steel is a high-carbon steel that basically does not add alloying elements. It is also a steel type among tool steels that has lower cost, good hot and cold workability, and a wide range of uses. Its carbon content is 0.65-1.35%, and it is a steel specially used for making tools. The density of high carbon steel is 7.81g/cm³. Can be used for the production of fishing gear.
Advantages and disadvantages of high carbon steel:
Advantage:
1. After heat treatment, high hardness (HRC60-65) and good wear resistance can be obtained.
2. The hardness is moderate in the annealed state and has good machinability.
3. Raw materials are easily available and production costs are low.
The disadvantages are:
1. Poor thermal hardness. When the working temperature of the tool is greater than 200°C, its hardness and wear resistance drop sharply.
2. Low hardenability. The diameter that is fully quenched during water quenching is generally only 15 to 18mm; the maximum diameter or thickness that is fully quenched during oil quenching is only about 6mm, and is prone to deformation and cracking.
The hardness and strength of high carbon steel mainly depend on the amount of dissolved carbon in the steel, and increase with the increase in the amount of dissolved carbon. When the amount of solid solution carbon exceeds 0.6%, the hardness no longer increases after quenching, but the number of excess carbides increases. The wear resistance of the steel increases slightly, while the plasticity, toughness and elasticity decrease.
Features of high carbon steel seamless pipe:
High carbon steel seamless pipe has the characteristics of high strength, high toughness and high wear resistance. It has high hardness and tensile strength, and also has certain corrosion resistance and wear resistance. These characteristics make high carbon steel seamless steel pipes widely used in many industries.
Application of high carbon steel seamless pipe:
1. Petroleum industry
High carbon steel seamless steel pipes are widely used in the petroleum industry. They are mainly used in oil well pipes, oil pipes, water well pipes, natural gas transmission pipelines, etc. They can withstand high pressure, high temperature and highly corrosive media.
2. Natural gas industry
High-carbon steel seamless steel pipes also play an important role in the natural gas industry. They are mainly used in natural gas transmission pipelines, wellhead pipelines, and oil and gas gathering and transportation pipelines. Their high strength and corrosion resistance can ensure the safety and durability of transportation.
3. Chemical industry
High carbon steel seamless steel pipes are also widely used in the chemical industry. They are mainly used in various chemical media transportation pipelines, heaters, reactors, etc. They have excellent corrosion resistance and high durability and can withstand various chemicals. The corrosive effect of the medium.
4. Electric power industry
High carbon steel seamless steel pipes are mainly used in the construction fields of transmission lines, boilers and heat exchangers in the power industry. They can withstand the requirements of high temperature and high pressure power equipment.
In addition to the above industries, high carbon steel seamless steel pipes are also widely used in fields such as machinery manufacturing and automobile manufacturing, such as automobile brake pipes, automobile exhaust pipes, oil drill bits, and mining equipment. These applications also prove the high carbon Steel seamless steel pipes have excellent properties and wide range of uses.
In short, high carbon steel seamless steel pipes play an important role in many industries, and their characteristics and wide range of applications have also made important contributions to the development of related fields.
Read more: Seamless Mechanical Tube
High carbon steel, often called tool steel, contains carbon from 0.60% to 1.70% and can be quenched and tempered. Hammers, crowbars, etc. are made of steel with a carbon content of 0.75%; cutting tools such as drills, taps, reamers, etc. are made of steel with a carbon content of 0.90% to 1.00%.
After appropriate heat treatment or cold drawing hardening, high carbon steel has high strength and hardness, high elastic limit and fatigue limit, and its cutting performance is acceptable, but its welding performance and cold plastic deformation ability are poor. Due to the high carbon content, cracks are prone to occur during water quenching, so double-liquid quenching is often used, and oil quenching is often used for small-section parts. This type of steel is generally used after quenching, tempering or normalizing at medium temperature, or in a surface quenching state. Mainly used for manufacturing springs and wear-resistant parts. Carbon tool steel is a high-carbon steel that basically does not add alloying elements. It is also a steel type among tool steels that has lower cost, good hot and cold workability, and a wide range of uses. Its carbon content is 0.65-1.35%, and it is a steel specially used for making tools. The density of high carbon steel is 7.81g/cm³. Can be used for the production of fishing gear.
Advantages and disadvantages of high carbon steel:
Advantage:
1. After heat treatment, high hardness (HRC60-65) and good wear resistance can be obtained.
2. The hardness is moderate in the annealed state and has good machinability.
3. Raw materials are easily available and production costs are low.
The disadvantages are:
1. Poor thermal hardness. When the working temperature of the tool is greater than 200°C, its hardness and wear resistance drop sharply.
2. Low hardenability. The diameter that is fully quenched during water quenching is generally only 15 to 18mm; the maximum diameter or thickness that is fully quenched during oil quenching is only about 6mm, and is prone to deformation and cracking.
The hardness and strength of high carbon steel mainly depend on the amount of dissolved carbon in the steel, and increase with the increase in the amount of dissolved carbon. When the amount of solid solution carbon exceeds 0.6%, the hardness no longer increases after quenching, but the number of excess carbides increases. The wear resistance of the steel increases slightly, while the plasticity, toughness and elasticity decrease.
Features of high carbon steel seamless pipe:
High carbon steel seamless pipe has the characteristics of high strength, high toughness and high wear resistance. It has high hardness and tensile strength, and also has certain corrosion resistance and wear resistance. These characteristics make high carbon steel seamless steel pipes widely used in many industries.
Application of high carbon steel seamless pipe:
1. Petroleum industry
High carbon steel seamless steel pipes are widely used in the petroleum industry. They are mainly used in oil well pipes, oil pipes, water well pipes, natural gas transmission pipelines, etc. They can withstand high pressure, high temperature and highly corrosive media.
2. Natural gas industry
High-carbon steel seamless steel pipes also play an important role in the natural gas industry. They are mainly used in natural gas transmission pipelines, wellhead pipelines, and oil and gas gathering and transportation pipelines. Their high strength and corrosion resistance can ensure the safety and durability of transportation.
3. Chemical industry
High carbon steel seamless steel pipes are also widely used in the chemical industry. They are mainly used in various chemical media transportation pipelines, heaters, reactors, etc. They have excellent corrosion resistance and high durability and can withstand various chemicals. The corrosive effect of the medium.
4. Electric power industry
High carbon steel seamless steel pipes are mainly used in the construction fields of transmission lines, boilers and heat exchangers in the power industry. They can withstand the requirements of high temperature and high pressure power equipment.
In addition to the above industries, high carbon steel seamless steel pipes are also widely used in fields such as machinery manufacturing and automobile manufacturing, such as automobile brake pipes, automobile exhaust pipes, oil drill bits, and mining equipment. These applications also prove the high carbon Steel seamless steel pipes have excellent properties and wide range of uses.
In short, high carbon steel seamless steel pipes play an important role in many industries, and their characteristics and wide range of applications have also made important contributions to the development of related fields.
Read more: Seamless Mechanical Tube
