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DOM Tubing

The ultimate guide to DOM tubing – everything you need to know in one place.

DOM Tubing: What It Is and Why It Matters in Manufacturing

DOM tubing, short for Drawn Over Mandrel tubing, is a type of steel tubing known for its strength, consistency, and durability. It is produced by pulling a solid steel rod through a die and over a mandrel. This results in a tube with precise dimensions, a smooth interior and exterior finish, and enhanced mechanical properties.

DOM stock is widely used in manufacturing applications that require high strength and precision, such as automotive parts, machinery, and structures. It is preferred over other types of tubing because of its uniformity, reliability, and resistance to deformation and cracking under stress.

Moreover, it is also famously called DOM tubing. It has an excellent surface finish and can be readily welded, machined, and formed, making it versatile for various manufacturing processes. Whether building a complex machine or a simple structure, using DOM stock can ensure your product is strong, durable, and precise.

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How DOM Tubing Is Made and Why It's Superior to Other Steel Tubes

DOM tubing, or Drawn Over Mandrel tubing, is made through a specialized manufacturing process that sets it apart from other steel tube types. The process starts with a solid steel rod pierced through the center and then drawn over a mandrel using a die to shape and size the tube. This process imparts uniform wall thickness, precise dimensions, and a smooth surface finish to the tubing.

One of the critical advantages of DOM stock over other types of steel tubes is its enhanced mechanical properties. The cold-drawn process not only creates a uniform and precise shape but also refines the grain structure of the steel, making it more robust, pliable, and resilient to deformation and fatigue. This makes it ideal for applications that require high strength, durability, and dimensional stability.

Moreover, DOM stock is free from weld seams or other defects that can compromise its structural integrity. This seamless construction makes DOM tubing easier to machine, weld, and form into complex shapes without compromising its strength or dimensional accuracy.

Overall, the unique manufacturing process used to make ths tubing sets it apart from other types of steel tubes and provides superior strength, consistency, and durability. Its enhanced mechanical properties, dimensional accuracy, and seamless construction make it an ideal choice for a wide range of applications in manufacturing, automotive, aerospace, and other industries.


As such, it is now understandable why this type of alloy steel is sought after getting a quick review of its components.

Consequently, its high machinability is highlighted as it is commonly combined with sulfur to further improve its machinability and make carburizing processes more effective.

With its excellent machinability, this even elevated this alloy steel’s prominence among industries.

Fortunately, Advance Grinding Services never runs out of 4140 alloy steel bars and can very much supply your needs especially if you are operating in the Illinois area!


Density 7.7-8.0
Tensile Strength 95000 psi
Yield Strength 60200 psi
Hardness (Brinell) 197
Hardness (Knoop) 219
Hardness (Rockwell) 92
Hardness (Vickers) 207
Machinability 65

Why Advance Grinding is the Ideal DOM Stock Supplier for Your Manufacturing Needs

Quality, reliability, and expertise are crucial when choosing the right DOM stock supplier for your manufacturing needs. And regarding these criteria, Advance Grinding ticks all the boxes.

As a leading provider of DOM stock and other metal fabrication services, Advance Grinding is dedicated to delivering high-quality products and exceptional customer service. With a vast inventory of DOM tubing in various sizes, grades, and finishes, they can provide you with the clear tubing you need for your project.

Advance Grinding also boasts state-of-the-art equipment and a team of skilled technicians and engineers committed to ensuring their products’ accuracy and consistency. Whether you need custom cutting, finishing, or heat treatment services, they can provide a seamless and efficient solution that meets your specifications.

In addition to its technical expertise, Advance Grinding is known for its customer satisfaction commitment. They offer competitive pricing, fast turnaround times, and personalized service to ensure you get the best value for your investment.

When choosing a DOM stock supplier, Advance Grinding is a reliable, knowledgeable, and customer-centric partner that can help you achieve your manufacturing goals.

Give us a call or request a quote from our website and acquire a high-quality DOM stock today!