AISI 1020 Gear Steel Bar

AISI 1020 is a low-carbon steel with a carbon content of 0.2%. It belongs to high-quality low-carbon carbon steel. It is cold-extruded, carburized and hardened steel. The steel has low strength, good toughness, plasticity and weldability, and tensile strength. The strength is 253-500MPa, and the elongation is ≥24%. It is suitable for the manufacture of small and medium-sized carburizing (or carbonitriding) parts that are not important for the construction of automobiles, tractors and general machinery manufacturing, such as handbrake shoes, lever shafts, gearbox speed forks on automobiles.

In the heavy and medium machinery manufacturing industry, it is used for forging or pressing tie rods, shackles, levers, sleeves, clamps, etc. In the steam turbine and boiler manufacturing industry, it is mostly used for pipes, flanges, headers and various fasteners working in non-corrosive media with pressure ≤ 6N/square and temperature ≤ 450 ℃; used to make crosses on railways, locomotives and vehicles Castings such as heads and pistons. 　　

The allowable stress of AISI 1020 steel at 225°C is between (16-36mm) and 111-124MPa; between (6-16mm) is between 117-131MPa and the allowable stress of No. 20 steel at 100°C: at 150°C, The allowable stress of AISI 1020 steel pipe is 130 MPa, and the allowable stress of AISI 1020 steel forging is 108 MPa.

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