51CrV4, 1.8159, 15 260 – Spring steel

Grade 51CrV4, 1.8159 steel is a high quality alloy steel used in industry for its excellent strength, wear resistance and flexibility. This article focuses on a detailed description of the properties of this steel, its chemical composition and characteristic applications in various industries.

Drawn and rolled bars from diameter 20 mm to 300 mm in stock. Forged bars and blocks available on order.

Properties of 51CrV4, 1.8159 steel

51CrV4 steel is valued for its specific mechanical properties, which include high strength, hardness, and fatigue resistance. These properties are achieved through alloying with chromium and vanadium, which ensures improved hardenability and increased tensile strength. The steel is also characterized by good elasticity, making it suitable for the production of springs and other components subjected to dynamic stress.

Mechanical properties

• Tensile strength: 800–1000 MPa
• Hardness: 240–280 HB
• Elongation: 10–15%
• Modulus of elasticity: 210 GPa

Chemical composition of 51CrV4 material

The chemical composition of 51CrV4, 1.8159, steel is a key factor that determines its properties and performance. Alloying with various elements ensures an optimal combination of strength, hardness, and wear resistance.

Typical chemical composition

• Carbon (C): 0.47–0.55%
• Silicon (Si): 0.15–0.40%
• Manganese (Mn): 0.70–1.10%
• Chromium (Cr): 0.90–1.20%
• Vanadium (V): 0.10–0.25%
• Phosphorus (P): max. 0.025%
• Sulphur (S): max. 0.035%

Typical applications of 51CrV4 steel

Grade 51CrV4 steel finds wide application in various industrial sectors due to its outstanding properties. Here are some of the main applications of this steel:

Spring manufacturing

Due to its high strength and elasticity, 51CrV4 steel is ideal for the production of various types of springs. These include automotive springs, railway springs, and industrial machinery springs.

Tool manufacturing

Hardness and wear resistance make this steel an ideal material for the production of tools such as knives, drills, and other cutting tools. These tools require high durability and long service life.

Automotive industry

In the automotive industry, 51CrV4 steel is used for the production of parts subjected to high stress. These include shafts, gears, and structural components. Its high strength and fatigue resistance ensure a long service life for these components.

Mechanical engineering

In engineering, this steel is used for the production of machine parts that require high strength and wear resistance. These include bearings, rollers, and other mechanical components.

Grade 51CrV4, 1.8159 material has become indispensable in many industrial sectors. This is due to its outstanding properties such as high strength, hardness, and fatigue resistance. Its chemical composition and mechanical characteristics ensure optimal performance and long service life of the products.