What is the performance of 20CrNi2MoA alloy structural steel

20CrNi2MoA is a kind of high-quality alloy structural steel, which is made by multiple precision machining processes by adding carbon, silicon, manganese, phosphorus, sulfur, chromium, molybdenum and other elements into the main component of 20CrNi2MoA. With good wear resistance, strength and toughness, it is widely used in the manufacture of high strength, high hardness mechanical parts and tools. It also has good fatigue resistance and is widely used in aviation, aerospace, automobile and other fields.

Features:

20CrNi2MoA is a high strength, high toughness alloy steel with good heat and corrosion resistance. The steel has excellent weldability, malleability and machinability, and has high stability and reliability during use.

Implementation standards:

The executive standard is GB/T 3077-2015 "Alloy structural Steel Technical Conditions" and GB/T 8162-2008 "Seamless Steel pipe for structural Use".

Chemical composition:

Carbon C: 0.17-0.23

Silicon Si: 0.17-0.37

Manganese Mn: 0.40-0.70

Sulfur S: ≤0.035

P: ≤0.035

Chromium Cr: 1.60-2.00

Nickel Ni: 1.55-2.00

Molybdenum Mo: 0.20-0.30

The mechanical properties are as follows:

Tensile strength: ≥980MPa

Yield strength: ≥835MPa

Elongation: ≥12%

Impact toughness: ≥50J

It has excellent hardenability, can be quenched after the rapid formation of uniform structure, so that it has high strength and toughness. This kind of steel can not only meet the manufacturing requirements of general mechanism parts, but also can be used to manufacture large size important parts, such as large machinery equipment, Bridges, ships, etc., to ensure the stability and reliability of these important structural parts.