Gear steel is a general term for steel that can be used to manufacture gears. Generally, there are low carbon steel such as 20# steel, low carbon alloy steel such as: 20Cr, 20CrMnTi, etc., medium carbon steel: 35# steel, 45# steel, etc., medium carbon alloy steel: 40Cr, 42CrMo, 35CrMo, etc., all can be called Gear steel.
This type of steel usually has good strength, hardness, and toughness after heat treatment according to the requirements of use, or the surface is wear-resistant and the core has good toughness and impact resistance. Gear steel is one of the key materials with high requirements in special alloy steel used in automobiles, railways, ships and construction machinery, and is the manufacturing material of core components to ensure safety.
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