20Cr3MoWVA alloy structural steel

20Cr3MoWVA Alloy Structural Steel

20Cr3MoWVA alloy structural steel is a kind of high-quality low-alloy steel that is widely used in the fields of automobiles, engineering and other industrial sectors. It has good overall mechanical properties and excellent welding performance, providing a wide range of engineering applications.

The chemical composition of 20Cr3MoWVA is C 0.16-0.21%, Si 0.17-0.37%, Mn 0.50-0.80%, P ≤0.035%, S ≤0.03%, Cr 2.0-2.5%, Mo 0.35-0.45%, V 0.15-0.25%, and Al 0.02-0.05%. It has a high carbon content and a low silicon content, and is suitable for making automobile and other parts with good resistance to fracture.

20Cr3MoWVA has good overall mechanical properties, with an extension of 27-30% and a yield strength of 187-209MPa. In addition, its welding performance is excellent, and it is easy to weld. It can be welded using various welding methods, including manual welding, MAG welding, MIG welding and more. If the heat treatment process is adopted, its mechanical properties can be further improved.

20Cr3MoWVA is widely used in the production of automobile parts and components, such as automobile axles, springs, gears and more. It can also be used to make high-strength forgings, such as connecting rods, crankshafts, shafts and more. In addition, it can also be used in the production of structural parts and components in engineering, such as railway locomotives, bridges and more.

The surface of 20Cr3MoWVA should be clean and free of rust and scale before use. If necessary, it can be processed with a grinding machine before use to improve its surface accuracy. After welding, the surface oxide layer should be removed and the metal components should be coated with oil or preservatives to protect them from corrosion.

In conclusion, 20Cr3MoWVA is a kind of high-quality low-alloy steel that is widely used in the fields of automobiles, engineering and other industrial sectors. It has good overall mechanical properties and excellent welding performance, providing a wide range of engineering applications. It can be used in the production of automobile parts, forgings and structural parts in engineering. However, the surface of 20Cr3MoWVA should be clean and free of rust and scale before use. After welding, the surface oxide layer should be removed and the metal components should be coated with oil or preservatives to protect them from corrosion.

20Cr3MoWVA Alloy Structural Steel

20Cr3MoWVA alloy structural steel is a kind of high strength and low alloy ferritic steel. It has good plasticity, toughness and weldability, and is widely used in the manufacture of automobile parts and components.

The chemical composition of 20Cr3MoWVA alloy structural steel is as follows: the content of carbon (C) is 0.17-0.23%, the content of silicon (Si) is 0.17-0.37%, the content of manganese (Mn) is 0.50-0.80%, the content of chromium (Cr) is 0.17-0.37%, the content of molybdenum (Mo) is 0.45-0.75%, and the content of Mn, Cr, Mo and V is 0.30-1.00%.

Due to the presence of Mn, Cr, Mo and V in the steel, its strength and hardness can be significantly enhanced. The tensile strength of 20Cr3MoWVA alloy structural steel ranges from 495 to 785 MPa, the yield strength is more than 380 MPa, and the elongation is approximately 20%. Its impact energy is greater than 95 J at room temperature, and its impact power is greater than 25 KJ/cm2 when the temperature is lower than 20°C. In addition, the impact toughness of 25Cr3MoWVA alloy structural steel is much higher than that of ordinary carbon structural steel.

At the same time, 20Cr3MoWVA alloy structural steel has good tempering stability and oxidation resistance. The tempering stability of this steel is superior to other ordinary structural steels, and it is not prone to be embrittled during tempering. In addition, the steel also has good oxidation resistance, and its components can form a protective film on the surface of the steel during high temperature oxidation to reduce the metal loss rate.