Alloy structural steel 20CrMnMo

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20CrMnMo Alloy Structural Steel

20CrMnMo Alloy Structural Steel is a high-strength alloy structural steel that is widely used in the automotive, agricultural, and construction industries. The alloy is a Martensite-Auspuff grade with 0.7-1.2 wt % carbon, 1-2 wt % manganese and 10-13 wt % chromium. This alloy was originally developed for using in automotive components, including gear boxes, suspension parts, engine connecting rods, and transmission shafts. 20CrMnMo alloy is also used in the construction industry. The alloy is typically applied in the manufacture of axles, pumps, bolts, screws, and other fasteners. It is also used in applications such as agricultural tools where wear resistance, hardenability and strength are required.

20CrMnMo Alloy Structural Steel is known for its great strength, toughness and reliability. The steel has an extremely high tensile strength that can be up to 960–1550 MPa. This strength allows the alloy to be used in high-stress situations such as gear boxes, suspension parts, and engine connecting rods. The steel is also highly resistant to corrosion and wear, making it ideal for use in abrasive and corrosive environments. Additionally, the alloy is easily machined and can be formed, machined and welded for manufacturing fasteners with close tolerances and perfect shapes.

Due to its excellent properties, 20CrMnMo Alloy Structural Steel is one of the most popular alloy structure steels in the world. The alloy is used for a wide range of applications from the automotive industry to the construction industry and from general fabrication applications to agricultural tools. Its excellent strength, toughness, and resistance to corrosion and wear make it ideal for use in high-stress, abrasive, and corrosive environments. Additionally, its machinability and formability make it easy to shape and weld which makes it a popular choice for the fabrication of fasteners with close tolerances and perfect shapes.

20CrMnMo alloy structural steel is a kind of carburized steel with medium hardenability and good comprehensive performance.

20CrMnMo alloy structural steel features good low temperature impact toughness, surface quenching ability, small section size hardenability and higher quenching degree, which can provide relatively large contact fatigue strength.

20CrMnMo alloy structural steel has good performance, good strength and toughness and good wearability, but its plasticity, welding performance and oxidation resistance are worse. In some carburized parts or low load parts, 20CrMnMo alloy structural steel can be used for gear, gear shaft and some gear parts in transmission and turbine.

20CrMnMo alloy structural steel can also be used for manufacturing tabular parts and increasing core strength after parts nitritizing, nitriding and carburizing and quenching heat treatments. 20CrMnMo alloy structural steel needs no temper brittleness and its machinability is good in annealing and tempering state. Its hardenability is better than 45 steel, but its impact toughness is not good.

Therefore, 20CrMnMo alloy structural steel is suitable for components with higher tensile strength and rigidity requirements and needs no temper brittleness, such as camshaft, driving axle, gear, gear shaft and other parts in automobile industry. It is also suitable for manufacturing parts requiring good sharpness and wear resistance, such as piston pins, spline shafts, gear components, etc.