AISI 420 or 1.4021 (X20Cr13) is a high-carbon martensitic stainless steel of the German grade DIN X20Cr13 (or 1.4021), intended for use in a variety of corrosive environments and applications. This grade is generally used for components requiring higher hardness and stiffness than AISI 410 or AISI 416. The major differences can be seen in the higher hardness, higher strength and higher resistance of AISI 420 compared to AISI 416.
AISI 420 (X20Cr13) is a German standard grade stainless steel. It is commonly used in knife making, especially when manufacturing pocket knives and has also been used in many firearms, as it has great wear resistance and corrosion resistance. It is also used in food processing and fishing equipment.
The most common use of AISI 420 (X20Cr13) is in the manufacture of knife blades. Many knife companies use the grade of steel in the production of folding knives and pocket knives, because of its great wear resistance and corrosion resistance. As a result, this grade is used to be extremely hard and wear-resistant blade edges to stay sharp for much longer than other stainless steels. It is also well suited for forming a microstructure involving small carbon nitride particles for further increasing wear resistance.
AISI 420 (X20Cr13) is also used in the production of medical instruments, utensils and other medical equipment. It can be used in medical instruments such as scissors, scalpels, forceps, tweezers and other instruments, as it has greater wear resistance and corrosion resistance than other materials. Additionally, it can also be used in the production of utensils such as forks and spoons and other items. Its wear resistance and corrosion resistance make it well-suited for use in kitchen utensils that require additional durability.
It is also used in various industrial applications, such as valve components and valve seats, pump parts, and bearings, as it is highly resistant to wear and corrosion. Additionally, it is also suitable for use in food processing and storage applications, as it has the ability to resist corrosion and abrasion.
Overall, AISI 420 (X20Cr13) is a great grade of stainless steel with a wide range of uses in numerous industries and applications. It is high-strength, corrosion-resistant and wear-resistant, allowing it to be used in a variety of applications. As a result, this grade of stainless steel is a popular choice for knife making, medical instruments, medical utensils and industrial applications.
