SUS440B stainless steel is a high-carbon chromium stainless steel that achieves the hardness of Rockwell C58 when heat treated. This high-carbon chromium steel is designed to provide stainless properties with superior hardness and behaves like tool steel in some ways.
Carbon (maximum):
Phosphorus (maximum):
Silicon (maximum):
Manganese (maximum):
Sulphur (maximum):
Chromium (nominal):
Molybdenum (nominal):
Iron (nominal):Balance.
SUS440B stainless steel is known for its superior hardness and corrosion resistance. During heat treatment, the alloy is able to achieve a hardness of Rockwell C58, making it excellent in a variety of applications that require high hardness and good corrosion resistance.
Due to its high carbon and chromium content, SUS440B resembles tool steel in some ways. This makes it ideal for applications that require the properties of tool steel, while combining the superior properties of stainless steel.
SUS440B not only performs well in terms of hardness, but also has good machinability, making it suitable for a variety of manufacturing and machining processes. Its balanced chemistry gives manufacturers and engineers the opportunity to use its versatility in different applications.
This stainless steel alloy retains stable performance at high temperatures, making it suitable for environments that require operation at higher temperatures.
With proper heat treatment, especially within the recommended temperature range, the performance of SUS440B can be optimized to achieve a balance of hardness and toughness.
In summary, SUS440B stainless steel is an ideal choice for many industrial and manufacturing sectors due to its high hardness, superior corrosion resistance, and tool-steel-like properties. Its outstanding performance makes it competent under a wide range of extreme conditions, providing engineers and manufacturers with a wide range of application possibilities.