China 35Si2Cr round steel manufacturer

35Si2Cr round steel is a high-performance alloy steel with excellent mechanical properties and hot processing properties. It is widely used in the manufacture of prestressed steel bars for high-speed railways, soft sleeper steel wires and other engineering fields that require high strength and high toughness.

35Si2Cr round steel has excellent mechanical properties, including high strength, high toughness and good delayed fracture resistance. Its main mechanical properties are as follows:

Tensile strength (σb): 1270～1470 MPa

Yield strength (σs): ≥1225 MPa

Elongation (δ): ≥8% (there is also data of 9%)

Area shrinkage (ψ): ≥20%

Hardness: can reach 45~50 HRC

35Si2Cr chemical element composition content (%)                        

The production process of 35Si2Cr round steel strictly follows relevant standards and process requirements to ensure product quality. The main production processes include smelting, refining, continuous casting, rolling and heat treatment. During the production process, focus is placed on controlling defects such as inclusions and segregation to improve the purity and mechanical properties of the steel. At the same time, advanced online heat treatment technology is used to conduct precise temperature control and cooling treatment on the wire to obtain the desired microstructure and performance.

Application scope

35Si2Cr round steel is widely used in the following fields due to its excellent mechanical properties and hot processing properties:

Production of prestressed steel rods and sleeper wires for high-speed railways.

Other engineering structural parts requiring high strength and toughness.

Key components in the machine building and automotive manufacturing industries.

Things to note

When using 35Si2Cr round steel, the appropriate heat treatment process and processing method should be selected according to the specific application scenario.

When welding 35Si2Cr round steel, special attention needs to be paid to preheating and subsequent heat treatment to avoid cracks and deformation.

During storage and transportation, steel should be protected from moisture, corrosion and mechanical damage.

As a high-performance alloy steel, 35Si2Cr round steel has wide application prospects and market potential. Its excellent mechanical properties and thermal processing properties make it an ideal choice for manufacturing key components such as prestressed steel rods and sleeper wires for high-speed railways. At the same time, strict production technology and quality control ensure the stability and reliability of product quality.

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