Carbon structural steel must meet both chemical composition and mechanical requirements. The grade of this type of steel is represented by a two-digit number, which indicates the average carbon content in the steel as a percentage (wC × 10000). For example, 45 steel means that the average carbon content is 0.45%, while 08 steel indicates an average carbon content of 0.08%.
High-quality carbon structural steel is widely used in the production of mechanical components. It typically undergoes heat treatment to enhance its mechanical properties, and its application varies depending on the carbon content. Steels like 08, 08F, 10, and 10F have high plasticity, toughness, and excellent cold formability and weldability. These are often cold-rolled into thin sheets for use in cold stamping parts such as instrument casings, car bodies, and tractor cabs.
Steels with slightly higher carbon content, such as 15, 20, and 25, are commonly used for carburized parts that require surface hardness but not high core strength, such as piston pins and small prototypes. Steels like 30, 35, 40, 45, and 50 offer excellent overall mechanical properties after heat treatment (quenching and high-temperature tempering), providing good strength, ductility, and toughness. They are ideal for manufacturing shafts, such as crankshafts, connecting rods, and machine tool spindles in automobiles and tractors.
Finally, steels such as 55, 60, and 65 are heat-treated through quenching and medium-temperature tempering to achieve high elastic limits. These are primarily used for small springs with light loads, such as pressure regulating springs, speed control springs, and cold-coiled springs. Their applications are common in automotive and mechanical systems where flexibility and durability are essential.
Base Seals are an important component used to seal machines and equipment. They are usually used to prevent liquid or gas leaks and protect machines and equipment from dust, pollutants, and other external elements. Base Seals mainly include rubber seals, oil seals, mechanical seals, O-rings, U-rings, V-rings, X-rings, and other types.
Rubber seals are a type of seal widely used in various machines and equipment. They are usually made of rubber materials and have characteristics such as wear resistance, corrosion resistance, high temperature resistance, and low temperature resistance. Rubber seals are mainly used to seal liquids or gases in machinery and equipment, such as automotive engines, water pumps, pipelines, fans, refrigeration equipment, etc.
Oil seal is a type of seal specifically used to seal lubricating oil. They are usually made of rubber and metal materials and have characteristics such as wear resistance, corrosion resistance, and high temperature resistance. Oil seals are mainly used in equipment such as automotive engines, industrial machinery, water pumps, and hydraulic systems to prevent lubricant leakage.
Mechanical seals are advanced seals used to seal machines and equipment. They are usually made of metal and ceramic materials and have characteristics such as wear resistance, corrosion resistance, high temperature resistance, and low temperature resistance. Mechanical seals are mainly used in high-speed rotating equipment, such as centrifugal pumps, compressors, fans, centrifugal separators, etc.
O-ring is a common sealing element, usually made of rubber material. They have good sealing performance and elasticity, and can be used to seal various liquids and gases. O-ring is mainly used in fields such as automobiles, machinery, and electronic equipment.
A U-shaped ring is a sealing element with a U-shaped cross-section, usually made of rubber material. They have good sealing performance and elasticity, and can be used to seal various liquids and gases. U-rings are mainly used in hydraulic systems, pneumatic systems, automotive braking systems, and other fields.
A V-ring is a sealing element with a V-shaped cross-section, usually made of rubber material. They have good sealing performance and elasticity, and can be used to seal various liquids and gases. V-rings are mainly used in fields such as automobiles, industrial machinery, and hydraulic systems.
7. X-shaped ring
An X-ring is a sealing element with an X-shaped cross-section, usually made of rubber material. They have good sealing performance and elasticity, and can be used to seal various liquids and gases. The X-ring is mainly used in hydraulic systems, pneumatic systems, automotive braking systems, and other fields.
X Ring,O Ring,Ptfe Gasket,Back Up Rings
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