45CrNiMoVA

45CrNiMoVA is A Chinese grade of structural alloy steel and is one of the most widely used grades in China. This grade of steel is a martensitic grade, with an alloy content of chromium, nickel, molybdenum and vanadium. It is a fully killed steel with a high content of carbon, around 0.45 percent.

The 45CrNiMoVA grade has good hardenability, strength and toughness. It is mainly used for parts requiring good wear resistance and high strength and impact resistance. The excellent heat treatment performance of this grade of steel helps it resist fatigue, oxidation and corrosion, making it suitable for a wide range of applications.

The tensile strength of the 45CrNiMoVA steel is around 1150MPa and the yield strength is around 980MPa. The hardness of this grade of steel is between HB210 and HB260. It is also highly resistant to atmospheric corrosion, sea water corrosion and other forms of corrosion. It also has good weldability and is both formable and machinable.

The 45CrNiMoVA grade is used in many industries and applications, such as mining and quarrying, automotive components, precision parts, molds and dies, and fasteners. This grade of steel is also popularly used in the construction of gear shafts, engine parts and power plant components, as well as in tools and machinery.

The 45CrNiMoVA grade of steel is also used in offshore applications, such as oil rigs and pumps. This grade of steel is also used in construction and agriculture, as it can withstand extreme temperatures and pressures, making it ideal for structural parts and components. The excellent strength and wear resistance of this grade of steel makes it an ideal choice for a variety of industrial and engineering applications.

Due to its good hardenability, strength and toughness, the 45CrNiMoVA grade of steel is in high demand in China and other parts of the world. It is therefore important to ensure that the product using this grade of steel meets the highest international standards. It is important that the supplier of this grade of steel is reliable and trustworthy, as there are many suppliers who claim to produce it, but produce inferior quality products.

The 45CrNiMoVA grade of steel is used for many applications and is one of the most common grades in China. It is important to be aware of its properties and the necessary requirements when looking for a quality product. The right supplier, combined with proper quality control and inspections, will ensure that the products manufactured using this grade of steel meet the highest international standards.

45CrNiMoVA is a kind of chromium-molybdenum-vanadium alloy steel. It has good comprehensive mechanical properties after quenching and tempering. Compared with other commonly used alloy structural steel, it has better performance in both strength and toughness.

45CrNiMoVA Chemical composition: C: 0.42-0.50, Si: ≤ 0.40, Mn: 0.50-0.80, Cr: 0.90-1.20, Ni: 0.40-0.70, Mo: 0.15-0.30, V: 0.10-0.20, P ≤ 0.030, S ≤ 0.030.

45CrNiMoVA microstructure mainly contains Bainite, Martensite, Retained Austenite and vanadium carbide.

45CrNiMoVA has fairly high strength and good hardness and toughness, and it also has temperature toughness at not too high temperature. But more attention should be paid during heat treatment, as it is easy to produce decarburization and surface oxidation.

The mechanical properties of 45CrNiMoVA are high strength and good elasticity, plasticity, impact toughness and fatigue strength at normal temperature.

It is a heavy duty steel, which is widely used in the manufacture of parts subjected to high load and impact fatigue, such as shafts, high speed gears, crankshafts, and other highly stressed parts. It is also an ideal material for nitriding, surface carburizing and structural parts for heavy load in mechanical transmission.