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420 Stainless Steel Plate
Chemical Composition
The chemical composition of 420 stainless steel plate is as follows:
Carbon: 0.15% - 0.36%
Chromium: 12.00% - 14.00%
Manganese: 1.00% max
Phosphorus: 0.040% max
Sulfur: 0.030% max
Silicon: 1.00% max
Description
Products Description
420 stainless steel plate is a high carbon martensitic stainless steel with moderate corrosion resistance and good strength and hardness. It is commonly used in applications that require high strength and wear resistance, such as cutlery, surgical instruments, and molds.
Properties
420 stainless steel plate has the following properties:
High strength and hardness
Moderate corrosion resistance
Good toughness
Good machinability
Good weldability
Sizes and Dimensions
This type of stainless steel plate is available in various sizes and dimensions, such as:
Thickness: 0.3mm - 100mm
Width: 1000mm - 2500mm
Length: 2000mm - 6000mm
Surface Finish
It can be finished in various surface finishes, such as:
2B: This is a smooth, matte finish that is commonly used in general applications.
BA: This is a bright, reflective finish that is commonly used in decorative applications.
No.4: This is a brushed finish that is commonly used in architectural and industrial applications.
HL: This is a hairline finish that is commonly used in architectural and decorative applications.
Applications
Stainless steel is a widely used material in many industries due to its excellent corrosion resistance, durability, and aesthetic appeal. One type of stainless steel that has gained popularity in recent years is 420 stainless steel. This alloy is known for its high carbon content, which gives it excellent hardness and strength.

Cutlery and Kitchenware
This kind of stainless steel is commonly used to manufacture cutlery and kitchenware due to its high hardness and corrosion resistance. Knives, forks, and spoons made of this alloy are durable and can withstand repeated use and washing. Additionally, it is easy to clean and has a smooth surface, making it an ideal material for cooking utensils.
Tooling
This type of stainless steel plates are commonly used in the manufacturing of cutting tools, such as knives, scissors, saw blades, and surgical instruments. This is because it has high hardness and wear resistance, which ensures that the cutting edges retain their sharpness for a longer period.
Mold making
They are also used in the manufacturing of molds for plastic injection molding and die casting. The high wear resistance and good dimensional stability of 420 stainless steel ensure that the molds have a longer lifespan and can produce parts with high accuracy.

Medical Instruments
Another common application of 420 stainless steel is in the medical industry. Surgical instruments made of this alloy are strong, durable, and resist corrosion. Additionally, it is easy to sterilize, making it a popular choice for medical instruments that need to be sanitized frequently.
Food processing
This kind of stainless steel plate is also used in the food processing industry, where it is used to make various equipment, such as conveyor belts, mixers, and storage tanks. This is because it is resistant to corrosion and does not react with food, which ensures that the food remains safe for consumption.
Chemical processing
It is also used in the chemical processing industry, where it is used to make various equipment, such as reactors, valves, and pumps. This is because it is highly resistant to corrosion and can withstand high temperatures and pressures.
Aerospace Industry
This kind of stainless steel sheet is widely used in the aerospace industry due to its high strength-to-weight ratio and corrosion resistance. This alloy is often used in the manufacture of aircraft parts such as landing gear, engine components, and structural supports. Additionally, it is easy to work with, making it a popular choice for aircraft manufacturers.
Aumotive Industry
The automotive industry also makes use of 420 stainless steel due to its excellent strength and corrosion resistance. This alloy is often used in the manufacture of exhaust systems, mufflers, and other components that are exposed to high temperatures and corrosive substances.

Construction Industry
It is also used in the construction industry due to its strength and durability. This alloy is often used in the manufacture of reinforcing bars, wire mesh, and other construction materials that need to withstand high stresses and loads. Additionally, This kind of stainless steel is resistant to corrosion, making it an ideal material for outdoor structures and buildings.
In a word, 420 stainless steel plates have a wide range of applications in many industries due to their excellent strength, durability, and corrosion resistance. From cutlery and kitchenware to medical instruments, aerospace components, automotive parts, and construction materials, It is a versatile alloy that can withstand harsh environments and repeated use. As such, it is a popular choice for manufacturers and engineers looking for a reliable and long-lasting material.
Conclusion
420 stainless steel plate is a high strength and wear-resistant martensitic stainless steel that is commonly used in various applications, such as cutlery, surgical instruments, molds, and aerospace components. It has moderate corrosion resistance, good machinability, and weldability. It is available in various sizes and dimensions, and can be finished in various surface finishes.
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