4130 steel can be manufactured as seamless tubing. Seamless 4130 steel tubing is produced by extruding a hollow billet through a die and then drawing it to the desired final dimensions and wall thickness without welding seams. This seamless process helps maintain the strength and integrity of the material, making it suitable for applications where high strength-to-weight ratio, durability, and resistance to fatigue and impact are required.

4130 seamless tubing is commonly used in aerospace, automotive, oil and gas exploration, and other industries where lightweight and strong materials are essential. It can be heat treated to enhance its mechanical properties and is known for its weldability and machinability.