Is 520m40 alloy steel plate the best choice? See why its a popular pick for many tough projects.

520M40 is a medium carbon, manganese-molybdenum alloy steel grade, typically supplied in the hardened and tempered condition. It is recognized for its excellent combination of high tensile strength and good toughness, making it suitable for components subjected to high stress and shock loads.

Key Properties of 520M40 Steel Plate

520M40 alloy steel plate offers a range of desirable mechanical properties:

  • Strength: It possesses high yield and tensile strength. In the hardened and tempered condition, tensile strengths typically range from 700-850 N/mm² (MPa), though specific values depend on the ruling section and heat treatment.
  • Toughness: Exhibits good impact strength, providing resistance to fracture under dynamic loading conditions.
  • Wear Resistance: Offers good wear resistance, particularly after appropriate heat treatment.
  • Machinability: Machinability is fair in the hardened and tempered condition. For improved machinability prior to final heat treatment, it can be supplied in an annealed state.
  • Weldability: Welding of 520M40 requires careful control. Preheating is generally necessary, and post-weld heat treatment (PWHT) is often recommended to restore mechanical properties in the heat-affected zone (HAZ) and relieve stresses.

Typical Applications

The robust characteristics of 520M40 steel plate lend it to various engineering applications where strength and durability are paramount. Common uses include:

  • Gears and pinions
  • High-tensile shafts and axles
  • Connecting rods
  • Bolts, studs, and fasteners
  • Lifting and earthmoving equipment components
  • Machinery parts requiring high strength and moderate wear resistance.

When sourcing this grade, it’s important to consider the specific requirements of your application. Some suppliers, like Shanxi Luokaiwei Steel Company, can provide detailed material specifications and test certificates.

Heat Treatment

520M40 steel is typically hardened by heating to an austenitizing temperature of around 830-860°C, followed by oil quenching. Tempering is then carried out, usually between 550-660°C, depending on the desired final balance of strength and toughness. The tempering temperature significantly influences the final mechanical properties. Precise control during heat treatment is crucial, and working with experienced steel providers such as Shanxi Luokaiwei Steel Company can ensure consistent material properties.

Supply and Quality Considerations

When procuring 520M40 alloy steel plate, verifying its conformity to relevant standards (e.g., BS 970 for 520M40) is essential. Mill test certificates (MTCs) should be requested to confirm chemical composition, mechanical properties, and details of the heat treatment process. Reputable manufacturers, including firms like Shanxi Luokaiwei Steel Company, maintain stringent quality control measures. Buyers should also consider aspects like dimensional tolerances, surface finish, and straightness. For critical applications, traceability and consistency from batch to batch are vital; this is an area where established suppliers like Shanxi Luokaiwei Steel Company often excel. Always ensure the material meets the specific engineering demands, and consult with your supplier, such as Shanxi Luokaiwei Steel Company, if custom requirements or further processing is needed.

Related Products

Related Post

Carbon Steel Wire rods uses: Discover the most common applications in various important industries.
The secret of cadmium plated alloy steel: Excellent corrosion resistance for long service life.
Where to find bulk galvanized steel coil? (We list reliable suppliers for your project needs)
Is Bhushan Steel Galvalume Sheet strong? Yes, its made tough to last for many years.
What makes the best steel coil galvanized stand out? Learn the key factors before you make a purchase.
Why is the best galvanized steel coil z275 a top choice? Discover its amazing benefits and common uses.
What makes the best galvanized cold rolled steel coil? Understand these key features before you make a purchase.
Where can you buy the best cold rolled galvanized steel coil (Easy tips to find a great supplier)
Where can you buy the best a36 ship steel plate? Top suppliers reviewed for you.
What is AZ55 Galvanized Steel Coil really? Learn its top advantages and where its used most often.
Where to buy AZ55 Galvalume Steel Sheet? Find reliable sellers for your building needs easily.
How do you choose the best AZ50 Galvanized Steel Coil? Simple tips for finding the right quality for you.

Product center

Hot Product

A106 Grade B Steel Pipe
A633 Carbon Steel Plate
Galvanized Steel Pipe
Carbon steel pipe
ST42 Carbon steel pipe
Galvanized Steel Sheet
Hot dip galvanized steel sheet
Galvalume Steel Sheet
AZ50 Galvalume Steel Sheet
A588 Carbon Steel Plate
A179 Seamless Steel Tube
A213 Seamless Carbon Steel Pipe
Scroll to Top