Introduction
Pressure casting steel is one of the most used materials in the world.It has many advantages such as higher strength and durability, great corrosion resistance, easy machinability and cost effective production.Pressure casting steel is used for a wide range of applications such as auto parts, aerospace components, and medical implant devices.
Steel grades and chemical compositions
Pressure casting steel is available in a variety of grades.These grades are identified by the International Standards Organization (ISO) designations.The grades are typically identified by letters and numbers.The letters indicate the type of steel and the numbers indicate the grade of steel.The identification of the steel grade and chemical composition is important to ensure that the right material is used for the right application.The most common steel grades used for pressure casting steel are 4140, 4340, 4142, 4145, 4350, 4355, and 4620.
4140 Steel
4140 steel is a chromium-molybdenum alloy steel.It contains 0.38 to 0.43% carbon, 0.8 to 1.1% chromium, 0.15 to 0.25% molybdenum, 0.2 to 0.35% manganese, 0.04 to 0.1% silicon, and 0 to 0.2% phosphorus.It is made for use at intermediate temperature and high pressure applications.4140 steel is often used for automotive parts and components, oil tools, agricultural implements, and industrial equipment.
4340 Steel
4340 steel is a nickel-chromium-molybdenum alloy steel.It contains 0.38 to 0.45% carbon, 0.7 to 0.9 % chromium, 0.2 to 0.3 % molybdenum, 0.35 to 0.45 % nickel, 0.2 to 0.3 % manganese, 0.04 to 0.1 % silicon, and 0 to 0.2 % phosphorus.It has excellent mechanical properties which make it ideal for use in aircraft components, auto parts and bicycle frames.
4142 Steel
4142 steel is an alloy steel with a high molybdenum content.It contains 0.3 to 0.4% carbon, 0.5 to 0.75% chromium, 0.7 to 1.1% molybdenum, 0.2 to 0.4% manganese, 0.04 to 0.1% silicon, and 0 to 0.2% phosphorus.It is typically used for high temperature applications such as turbine engines, industrial equipment, and automotive parts.
4145 Steel
4145 steel is an alloy steel with a medium molybdenum content.It contains 0.3 to 0.45% carbon, 0.5 to 0.75% chromium, 0.8 to 1.1% molybdenum, 0.2 to 0.4% manganese, 0.04 to 0.1% silicon, and 0 to 0.2% phosphorus.It is ideal for use in parts that require high strength and toughness such as aerospace components and oil field tools.
4350 Steel
4350 steel is an alloy steel with a high molybdenum content.It contains 0.3 to 0.4% carbon, 0.6 to 0.8 % chromium, 1.2 to 1.4 % molybdenum, 0.2 to 0.4 % nickel, 0.2 to 0.4 % manganese, 0.04 to 0.1 % silicon, and 0 to 0.2 % phosphorus.It is ideal for use in components that require strength and toughness such as forging dies and hydraulic fracturing tools.
4355 Steel
4355 steel is an alloy steel with a medium molybdenum content.It contains 0.3 to 0.4% carbon, 0.5 to 0.7 % chromium, 1.1 to 1.35 % molybdenum, 0.2 to 0.4 % nickel, 0.2 to 0.4 % manganese, 0.05 to 0.15 % silicon, and 0 to 0.2 % phosphorus.It is used for parts that are subjected to high stress and heat such as automotive engine components and valves.
4620 Steel
4620 steel is an alloy steel with a high molybdenum content.It contains 0.3 to 0.45% carbon, 0.7 to 0.9 % chromium, 1.3 to 1.6 % molybdenum, 0.2 to 0.4 % nickel, 0.2 to 0.4 % manganese, 0.04 to 0.2 % silicon, and 0 to 0.2 % phosphorus.It is used for applications that require high wear resistance and toughness such as gears, bearings, and high pressure valves.
Conclusion
Pressure casting steel is a versatile material with a wide range of applications.It is available in a variety of grades that are identified by the ISO designations.Each grade has its own specific chemical composition that is designed for the particular application the steel is intended for.It is important to understand the chemistry of the steel in order to ensure that the right material is used for the application.
