Steel 09g2s foreign analogues aisi

Steel grade: 45.

Class: high-quality carbon structural steel.

Industrial uses: Pinion shafts, crankshafts, camshafts, gears, spindles, bands, cylinders, cams and other normalized, tempered and surface heat treated parts that require increased strength.

Hardness: HB 10 -1 = 170 MPa

Weldability of the material: difficult to weld. Welding methods: RDS and KTS. Heating and subsequent heat treatment are required.

Forging temperature, oC: beginning 1250, end 700. Sections up to 400 mm are cooled in air.

Flock sensitivity: low sensitivity.

Tendency to temper brittleness: not prone.

Type of delivery:

• Long products, including shaped steel: GOST 1050-88, GOST 2590-2006, GOST 2591-2006, GOST 2879-2006, GOST 8509-93, GOST 8510-86, GOST 8239-89, GOST 8240-97, GOST 10702 -78.
• Calibrated rod GOST 1050-88, GOST 7417-75, GOST 8559-75, GOST 8560-78.
• Polished rod and silver GOST 14955-77.
• Thick sheet GOST 1577-93, GOST 19903-74.
• Thin sheet GOST 16523-97.
• Tape GOST 2284-79.
• Strip GOST 103-2006, GOST 1577-93, GOST 82-70.
• Wire GOST 17305-91, GOST 5663-79.
• Forgings and forged blanks GOST 8479-70, GOST 1133-71.
• Pipes GOST 8732-78, GOST 8733-74, GOST 8734-75, GOST 8731-74, GOST 21729-76.

Analogs of steels. Structural steel.

Temperature of critical points of steel 45

As previously noted, to improve the performance properties of the metal, heat treatment is carried out. It involves exerting a certain influence on the structure, after which the crystal lattice is rearranged and the qualities change. When carrying out heat treatment, critical points are often taken into account. Processing of steel St 45 is carried out taking into account the following factors:

1. Temperature conditions. It is important to choose the right temperature, since too low will cause incomplete heating of the structure and complete restructuring of the structure will not occur. Too high an indicator causes overheating of the metal, as well as the appearance of scale. A variety of settings can be used to ensure that the required temperature is applied. An example would be blast furnaces or electrical installations. Melting temperatures that are too high determine that it is quite difficult to harden the steel in question at home.
2. Rate of temperature increase. The heating rate can also determine which qualities will be transferred to the processed product. Modern equipment allows you to control the heating rate with high precision. For example, HDTVs have an electronic control unit; electrical energy is converted into magnetic energy, which causes heating of the structure.
3. The length of time between exposure to different temperatures. When heat treating all metals, the presence of three critical points is taken into account and taken into account. The holding time may depend not only on the chemical composition of the material, but also on the size and shape of the workpiece.
4. Features of the cooling process. The quality of the resulting product largely depends on the conditions under which the cooling process took place. For example, it is possible to use oil or water, as well as various powders as a cooling medium.

Quite often, HDTV is used to change the qualities of a metal. It is characterized by high efficiency in application, as well as ease of use. Today there are models that, if desired, can be installed in a home workshop.

Critical points are considered to be temperatures at which restructuring of the structure occurs. There are three main temperature points that are displayed on the plotted diagram.

Attention is also paid to choosing a more suitable cooling medium. For example, it is possible to carry out cooling in water. However, such an environment leads to uneven cooling, which leads to scale and other problems. For higher quality, oil is used. Large workpieces can be cooled in the open air, since it takes a long time to reduce the temperature.

Analogs of steels. Structural carbon steel.

Properties of steel St 45

When purchasing metal products, you need to know the properties of the material from which they are made. The type of steel the product is made from affects its cost, strength, and reliability. This also determines the service life and possible scope of application.

In this case, you will find information about steel grade 45, which is often used for the manufacture of a variety of metal products. It is considered structural carbon quality. To purchase rolled metal products made from 45 steel, check out the company’s catalogs and contact our managers.

It is supplied in the form of long and shaped products. You can find an extensive list of products for which it is used. For example, silver, sheets of metal of different thicknesses, rods with different types of surface treatment, forgings and forged blanks, long wire products, tapes and strips, as well as pipes.

Analogs of steels. Alloy structural steel

Analogs of steels. Carbon tool steel

Analogs of steels. Alloy tool steel

Analogs of steels. High-speed tool steel.

*possible production by powder metallurgy method

Purpose and use of steel 09G2S

The properties of the alloy make it ideal for the manufacture of welded structures. In addition, the metal is used as a coating in the manufacture of two-layer corrosion-resistant sheets.

Also made steel 09G2S

• parts for carriages;
• steam boilers;
• welded transitions, flanges;
• seamless pipes;
• pressure apparatus;
• equipment for the petrochemical industry.

In addition, steel is very popular among developers, because the high mechanical properties of the alloy and its low weight make it possible to save considerable money on the construction of commercial facilities.

Analogs of steels. Heat-resistant steel

Application of AISI 304 and 12x18n10t, difference

When using these steels for the production of structures and parts, product elements, it is necessary to take into account the comparison of the chemical composition and properties of AISI 304 and 12x18n10t.

Steel grade 12x18n10t, as a chromium-nickel stainless alloy, is used for structures and equipment elements intended to be used in cryogenic areas. For the manufacture of parts for capacitive, heat transfer and reaction technology. It is used to produce elements of steam heaters and pipes for high-pressure pipelines, parts of furnace equipment, muffles, and exhaust system manifolds. When using this steel in production, an important quality is a long service life while maintaining the same basic characteristics.

AISI 304 steel has such a wide range of applications that it is impossible to list everything. This alloy is most in demand for the manufacture of elements for connecting pipelines, fittings, and welded pipes themselves. 304 steel is widely used in construction, for the production of welded columns, transition bridges, floor parts, monorails, etc. 304 steel is excellent for the manufacture of medical instruments, parts of medical equipment, tanks and containers.

This steel is in demand in the automotive and food industries.

Analogs of steels. Corrosion-resistant steel

09G2S – properties

The composition of the alloy provides this material with the following basic properties:

• density 7.85 g/cu. cm.;
• the yield strength, when heated to different temperatures, lies in the range from 255 to 155 MPa.

Parts made of 09G2S alloy can be welded together by any known type of welding used in industry. In this case, there is no need to carry out any additional preparatory operations, for example, preheating the welding site.

This type of steel has found its application in the creation of welded structures. The good weldability of this material is ensured by the low content of carbon atoms.

Many years of experience show that a higher amount of carbon leads to the formation of various defects, for example, porosity, lack of penetration. Moreover, when carbon burns out, hardened micro-sections are formed in the structure of the weld and this leads to a decrease in the quality of the weld.

Among the many advantages of this steel is the fact that it does not acquire additional brittleness after tempering. In addition, its structure makes it possible to ensure resistance to excessive heating and, as a consequence, the appearance of cracks in the weld area.

Several methods are used to produce this grade of steel:

• open hearth;
• electrothermal;
• converter

Cast iron is used as the main raw material. In accordance with GOST requirements, the melt is optimized, that is:

• raise the amount of carbon;
• alloying components are introduced.

Thanks to these measures, the finished product receives the required properties.

Analogs of steels. Stainless steel