High-alloy steel

High-alloy steel  Contains between 10 and 50% alloying elements, which are introduced to impart the required physical and mechanical properties to the alloy. Alloying additives provide exceptional corrosion resistance, increase strength, and reduce the risk of brittle fracture. Most alloying elements high-alloy steel serve:

• nickel;
• chromium;
• vanadium;
• copper.

There are several types of high-alloy steels, and this diversity serves specific purposes during design development. The goal of creating a large number of alloy grades is to achieve the most precise selection for the creation of more advanced structures and mechanisms capable of withstanding the required loads. By properties high-alloy steels there are:

• heat-resistant;
• corrosion-resistant;
• heat-resistant.

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This steel is highly ductile, welds fairly well, and exhibits resistance to deformation under mechanical loads. Machine-building steel has good elasticity and is non-magnetic. This is achieved through heat treatment and the introduction of the necessary alloying element, which can alter the steel's structure to achieve the desired performance parameters.

High-alloy steel grade

High-alloy steel grade  Its short name contains a fairly lengthy compositional description, as this steel contains many alloying components. The marking technology for high-alloy steels is as follows: letters indicate the presence of an element, and a number indicates the average percentage content of that element. For example, the marking 40Х9С2 means:

• 0.35-0.45% C;
• 8.0-10.0% chromium;
• 2.0-3.0% silicon.

High-alloy steel grade Shows the classification of steel types and allows for the accurate determination of the best application for an alloy. There are several main classes:

• chromium;
• chromium-nickel;
• chromium-manganese steels.

Belonging to a certain class is reflected in the marking.

Steel grade 06Kh16N15M3B is used to manufacture components subject to very high temperatures and loads, such as high-pressure steam lines and superheater tubes. Steel grade 08Kh15N24V4TR is used for guide and rotor blades, fasteners, and long-life gas turbine disks at temperatures of 650-700%. Steel grade 08Kh16N9M2 is used to manufacture reduced seamless tubes that have undergone cold deformation, thermal deformation, and hot pressing. These tubes are intended for steam boilers and pipelines in installations subject to supercritical steam conditions. High alloy steel grade - 12Х8ВФ, is actively used for furnace pipes, communications and equipment of oil refineries, as well as structures and mechanisms designed to operate at a temperature of 500⁰WITH.

Properties of high-alloy steels

Properties of high-alloy steels They are characterized as a strong yet ductile material. The alloy also combines corrosion and deformation resistance. Compared to carbon steel, high-alloy steel is significantly more ductile. All alloys, without exception, can be used to create structures joined by welds. The metal's high weldability allows for maximum weld strength, which is why the steel is used for welded structures operating under high mechanical loads. Certain mechanical engineering grades are also distinguished by their non-magnetic properties, elasticity, and increased heat hardening. High mechanical strength is achieved through heat treatment of the alloy.  properties of high-alloy steels allow them to be actively used in various fields of activity.