37MnSi5, 1.5122 – Structural steel

Grade 37MnSi5 steel, also known as 1.5122, is a high-performance alloy steel that finds wide application across various industrial sectors. Its tensile strength ranges from 800 to 1500 N/mm².

Rolled bars with diameters from 20 mm to 280 mm in stock in refined condition (quenched and tempered condition) +QT.

Properties of 37MnSi5, 1.5122 steel

Grade 37MnSi5 material is especially valued for its combination of strength and toughness. Thanks to its complex structure and balanced mechanical properties, it is a popular choice for a wide range of engineering applications.

• Strength: 37MnSi5 steel is characterized by high tensile strength, making it ideal for structural applications where high durability is required.
• Hardness: The hardness of this steel ensures excellent wear resistance, making it suitable for applications involving intense mechanical stress.
• Toughness: Due to its toughness, 37MnSi5 steel has a good ability to absorb shock and vibration without embrittlement.
• Weldability: Grade 37MnSi5 material is weldable, allowing it to be easily processed and assembled in a variety of industrial applications.

Chemical composition of 37MnSi5, 1.5122 steel

The chemical composition of 37MnSi5 is carefully designed to achieve the required combination of mechanical properties and workability. Below is the typical chemical composition of this steel:

• Carbon (C): 0.34–0.42%
• Manganese (Mn): 1.20–1.60%
• Silicon (Si): 0.40–0.80%
• Chromium (Cr): max. 0.30%
• Sulphur (S): max. 0.030%
• Phosphorus (P): max. 0.030%

Typical applications of 37MnSi5, 1.5122 steel in industry

37MnSi5 steel finds wide application in many industries due to its versatility and excellent mechanical properties.

Mechanical engineering

In the field of engineering, 37MnSi5 steel is often used for the manufacture of tools, parts, and components. These items must withstand high stress and wear. Typical applications include:

• Manufacturing tools and accessories
• Components of machinery and equipment
• Heavy-duty gears and shafts

Automotive industry

The automotive industry makes extensive use of 37MnSi5 steel in the manufacture of critical components that must withstand high loads and impacts. Typical applications include:

• Manufacture of semi-axles
• Engine and gearbox components
• Suspension and shock absorber components

Construction industry

Due to its strength and durability, 37MnSi5 steel is also used in the construction industry where high load-bearing capacity and reliability are required. Typical applications include:

• Structural elements and beams
• Reinforcement elements and stiffeners
• Infrastructure components such as bridges and steel structures

Energy and heavy industries

In the energy and heavy industries, 37MnSi5 steel is used to manufacture equipment and components that must withstand extreme conditions and stresses. These include:

• Drilling and mining equipment
• Energy equipment components
• Oil and gas processing and transportation equipment

Grade 37MnSi5, 1.5122 steel is a high performance and versatile alloy steel that finds wide application in various industries. Its excellent mechanical properties, such as strength, hardness, and toughness, combined with its optimal chemical composition, ensure its reliability. This makes this steel highly efficient in demanding applications.