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About 25cr2mova steel

Types of 25cr2mova Steel

25cr2mova steel is a type of alloy steel commonly used in industries. It is a chrome-molyvanadium-based steel mainly applied to constructions and mechanical parts, where high yield and tensile strength are required. Below are important types of 25cr2mova steel.

Tool Steel: This type of 25cr2mova steel is shaped by heat treatment into hard tools used for cutting, shaping, and deformation of other materials. The steel's resistance to wear and ability to maintain sharp edges have made it ideal for manufacturing knives, cutting blades, moulding dies, and punching or cutting tools.

Chro-moly Steel: Chro-moly steel is sometimes used to manufacture frames for race cars and bikes. This is because the steel is highly resistant to corrosion. Its use provides a good strength-to-weight ratio hence its application in construction where strength is highly needed.

Alloy Steel: Alloy steel is used where properties like hardenability, strength, and toughness are required. 25cr2mova steel's ability to be hardened through heat treatment gives it the versatility needed in a wide range of industrial applications.

High-speed Steel: High-speed steel is known for its ability to cut materials even at elevated temperatures. Thus, it is commonly used to manufacture drill bits, saw blades, and turning tools, where 25cr2mova steel can be enhanced through alloying to improve its wear resistance and toughness.

Impact-Resistant Steel: The 25cr2mova steel is resistant to impact hence appropriate to use in heavy-duty applications. These applications are prone to shocks and sudden changes in temperature; hence, the impact-resistant property of the steel is suited for construction and machinery components in mining.

Specifications and Features of 25cr2mova Steel

Some key specifications of 25cr2mova steel:

  • Chemical composition

    25cr2mova steel is an alloy steel. It contains chromium at 1.5% to 2.5%, carbon at 0.22% to 0.28%, molybdenum at 0.15% to 0.25%, vanadium at 0.1% to 0.3%, and manganese at 0.5% to 1.0%.

  • Tensile strength

    Tensile strength refers to the resistance of an object to tension or pulling. The tensile strength of 25cr2mova steel is approximately 800 MPa to 1,200 MPa. This gives it the highly useful ability to withstand high amounts of pulling stress.

  • Yield strength

    Yield strength indicates the maximum stress that will result in permanent deformation. 25cr2mova steel has yield strength properties of about 600 MPa to 900 MPa. Beyond this threshold, the steel begins to warp and change its shape.

  • Hardness

    The hardness of steel is measured using the Rockwell (HRc) and Brinell (HB) hardness test. The HB test shows that 25cr2mova steel has a hardness between 200 to 300 HB, while HRc gives it a hardness level of 30 to 40 HRc. These hardness levels mean that the steel can withstand abrasion.

  • Toughness

    Toughness indicates how much impact resistance an object possesses before it breaks. 25cr2mova steel is tough due to the specifications of its alloying elements. They improve its energy absorption capacity and deformation without fracturing.

  • Heat treatment

    Heat treatment of 25cr2mova steel enhances its hardness and strength. The process involves hardening by heating and quenching, followed by tempering to relieve stresses and improve toughness.

Multiple Uses of 25cr2mova Steel

The 25cr2mova steel is a highly versatile material. This versatility is attributed to its exceptional mechanical properties, which are suitable for use in many demanding applications. Below are the uses of 25cr2mova steel:

  • Oil and Gas Industry

    25cr2mova steel is used in the oil and gas industry to manufacture drill bits, downhole tools, and casing components. The steel's combination of strength, toughness, and corrosion resistance allows it to withstand extreme temperatures and pressures encountered in deep-sea drilling and extraction processes.

  • Aerospace Components

    Due to its high strength-to-weight ratio and ability to retain structural integrity at elevated temperatures, 25cr2mova steel is used in the aerospace industry. The steel is commonly used to manufacture critical components in jet engines, landing gear, and turbine blades. These applications require materials that can handle extreme aerodynamic pressures and temperatures.

  • Automotive Parts

    In the automotive industry, 25cr2mova steel is used to manufacture gears, shafts, and other high-stress components in the engine and transmission systems. Its resistance to wear and deformation under heavy loads ensures longevity and reliability in performance, making it ideal for high-performance and heavy-duty vehicles.

  • Military Applications

    The military sector highly values the mechanical properties of 25cr2mova steel. It is used to manufacture components for armored vehicles, aircraft, and weapon systems due to its strength, toughness, and resistance to fatigue. Its ability to perform reliably in extreme combat conditions makes it indispensable for defense applications.

  • Mining and Construction Equipment

    25cr2mova steel is used in the manufacture of excavators, drills, and other heavy equipment used in mining and construction. Its high wear resistance and ability to endure impact and stress over extended periods make it suitable for applications where extreme abrasion and load conditions are common.

  • Tool and Die Manufacturing

    In tool and die-making, 25cr2mova steel is used to create molds, dies, and cutting tools. The alloy's ability to retain hardness and sharp edges under high-temperature conditions makes it ideal for applications such as injection molding and die casting. Therefore, providing precision and durability in the production of industrial components.

How to Choose 25cr2mova Steel

There are various factors that a business should consider when purchasing 25cr2mova steel. Below are these factors:

  • Steel grade

    The steel grade should be among the first factors to consider. The 25cr2mova steel grade offers toughness, wear resistance, and strength due to the elements used to make it. These elements are chromium, carbon, molybdenum, and vanadium. Each of these elements provides unique properties that make the steel suited for harsh working environments.

  • Thickness

    Buyers should consider the steel's thickness, as it will determine how well the steel can bear pressure. The general hardness of 25cr2mova steel increases with thickness. Hardness affects wear resistance, and thicker steel generally has better impact resistance.

  • Treating history

    Buyers should consider the treatment history of the steel, including any heat treatments it has undergone. This is essential because heat treatment enhances hardness, strength, and toughness. It also helps improve fatigue resistance. Heat treatment history should align with buyers' intended applications to ensure optimal performance.

  • Working environment

    Business purchasers should consider the working environment. The 25cr2mova steel is suited to intense thermal, corrosive, and mechanical environments. Knowing the environment will help in determining the proper treatment and application of the steel.

  • Application

    Buyers should consider the various applications of the 25cr2mova steel. It is ideal for high-stress applications in the oil and gas, aerospace, automotive, and tool-making industries. Understanding the application will help determine if the steel is appropriate for the buyer's target clientele.

  • Fabrication requirements

    Clients may require specific fabrication methods for the steel. This is usually due to the treatment it underwent previously, which must be respected to avoid ruining the steel. In such cases, they will require particular machining and welding techniques to be used, which may affect the end cost of the product. Buyers should consider these required fabrication methods when purchasing the steel.

Q & A

What is the heat treatment of 25cr2mova steel?

The heat treatment of 25cr2mova steel involves hardening by heating to a temperature near its critical range, followed by quenching in oil or air, and tempering by reheating to relieve internal stresses.

Which industry uses 25cr2mova steel tools the most?

The aviation industry uses 25cr2mova steel tools the most. This is because it has tools that can withstand high temperatures, making it suitable for aerospace components that operate under extreme conditions.

Is 25cr2mova steel corrosion-resistant?

Yes! While 25cr2mova steel is not as inherently corrosion-resistant as stainless steel, adding chromium gives it some resistance. Surface treatments like plating or coating enhance its corrosion resistance.

Is 25cr2mova steel magnetic?

Yes! The 25cr2mova steel is magnetic. The magnetic properties of 25cr2mova steel can vary based on its heat treatment and alloy composition. However, as an alloy steel with carbon content, it retains some magnetic characteristics.

What should businesses look for when buying 25cr2mova steel in bulk?

When purchasing 25cr2mova steel in bulk, businesses should consider chemical composition, material thickness, heat treatment, mechanical properties, and supplier reputation.