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4130 Alloy Steel Round Bar

4130 Alloy Steel - Precision and Performance

Unlock the Potential of 4130 Alloy Steel - Precision-Crafted for Your Toughest Applications

4130 Alloy Steel Round Bar


4130 alloy steel is a low-alloy steel that contains molybdenum and chromium as strengthening agents. It exhibits excellent mechanical properties such as toughness, machinability, good strength, and weldability.

This steel grade is a versatile alloy with a reasonable strength up to 600°F (315°C) as well as better atmospheric corrosion resistance. As one of AISI steels, it can respond well to mechanical and heat treatments compared to carbon steels. With its low carbon content, this alloy steel can be easily welded. It exhibits excellent overall combinations of toughness, strength, and fatigue strength.

4130 alloy steel is stronger and harder compared to other standard steel grades. The alloy becomes suitable enough for machining as long as it has been heat-treated right after forging. Optimum strengths, conditions, and temperatures should be primarily defined to heat treat the material part.

Machining this alloy steel can be easy through the use of conventional methods. But when steel’s hardness increases, machining can be quite difficult. Forming the alloy is done in its annealed condition.

Since this alloy is readily machinable, machining simple shapes might follow a normalizing treatment, but machining complex shapes will need annealing. A coarse pearlitic structure with minimum ferrite is great for optimum machinability.

Uses of 4130 Alloy Steel

This low-alloy steel has many applications such as forgings in aerospace construction and oil and gas industries, agricultural and defense, and in automotive.

This the following applications of 4130 alloy steel;

  • Welding tubing
  • Aircraft engine mounts
  • Commercial aircraft
  • Auto racing
  • Machine tools
  • Forged valve bodies and pumps
  • Military aircraft
  • Hydraulic tools

Why Purchase 4130 Steel Bar?

4130 steel bar is a popular choice for many industries. It is useful in the automotive, aerospace, heavy machinery, and construction industries. The material properties of this round bar make it a preferred choice among manufacturers. The material has high tensile strength and is able to withstand high temperatures without losing its strength.

It is a type of steel used in various applications, such as structural and mechanical components. The 4130 steel bar is one of the most popular types of steel bars in the industry. It is popular for structural and mechanical components because it has a high strength-to-weight ratio and good formability.

It is useful in a wide range of applications including structural components, machine components, and automotive parts. The most common applications are in the aerospace industry, power generation, and oil and gas production. This bar has excellent corrosion resistance properties that make it ideal for marine environments.

The Top Choice 4130 Round Bar Suppliers

PGB offers a wide range of 4130 steel bar in various diameter. We offer a huge variety of grades and material options for all types of applications, including aerospace and automotive components.

Not only that, We offer 4130 alloy steel with a full range of standard stock sizes and different processing capabilities for your compliance with all your required product lengths and widths. We also have a wide variety of machining operations to meet all your various application requirements.

If you have some queries or want to have details about our services and product availability, you may contact us directly to talk to one of our steel sales experts or get our free quote to be assisted with your requirements today!

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