Characteristics and application of 20Cr alloy steel

20Cr is a low alloy steel material with a variety of properties and a wide range of applications.

20Cr alloy steel features:

Wear resistance and fatigue resistance: After carburizing, 20Cr steel forms an alloy layer of high hardness on the surface, which has excellent wear resistance. At the same time, after proper heat treatment, it has high fatigue resistance and can work for a long time under high load and high stress environment.

Good hardenability: 20Cr steel has good hardenability and can be quenched for large section parts to obtain uniform mechanical properties.

Good manufacturability: the steel can be processed by conventional forging, rolling and heat treatment processes, and the operation is simple.

Strength and hardness: 20Cr has high strength and hardness, making it have excellent wear resistance and corrosion resistance.

The main chemical components of 20Cr alloy steel include:

Carbon (C) : 0.18 ~ 0.24%

Silicon (Si) : 0.17 ~ 0.37%

Manganese (Mn) : 0.50 ~ 0.80%

Chromium (Cr) : 0.70 ~ 1.00%

Sulfur (S) : Allowable residual content ≤0.035%

Phosphorus (P) : Allowable residual content ≤0.035%

Nickel (Ni), molybdenum (Mo), copper (Cu) and other elements: the allowable residual content is also limited

20Cr steel has a wide range of applications in a number of fields, including but not limited to:

Petrochemical industry: Used to manufacture a variety of pressure vessels, pipes, flanges and other parts, these parts need to withstand high temperature, high pressure and corrosive media.

Machinery manufacturing: Used to manufacture a variety of drive shaft, gear, bearing seat and other mechanical parts, these parts need to withstand large loads and friction.

Aerospace field: Used in the manufacture of aircraft engine parts, spacecraft structural parts, etc., the strength and hardness of materials have high requirements.

Automotive manufacturing: Used to manufacture engine crankshafts, gears, shaft parts and other key components, which need to withstand high loads and shocks.

Energy industry: Used to manufacture wind turbine blades, bearings and other components, as well as oil drilling equipment transmission shaft, gear and other components, these components need to withstand harsh working environments and large loads.

Mold manufacturing: As a high-quality material used to manufacture the core of the mold and the surface of the mold, its high hardness and wear resistance make the mold able to withstand high strength extrusion and friction.

Construction industry: Used to manufacture Bridges, high-rise buildings and other structural parts, need to withstand large loads and deformation.