19 March 2026 at 20:57 • 3 mins read
HD plasma is a cutting process that erodes material by applying an electrode arc within a superheated gas plasma stream. The plasma cutting system directs the arc while blasting out the material from the cut. HD plasma cutting is not recommended for small, intricate pieces, unlike laser cutting. Instead, a plasma cutting system cuts heavier materials for coarse processing.
Plasma cutting exists in several different formats. Your specific application will dictate which is best for your application. This article will focus primarily on HD plasma cutting. However, to provide a reference, the other types of plasma cutting systems include:
Plasma cutting systems utilize high-temperature, ionized gas plasma to cut aluminum and stainless steel. The temperatures within an HD plasma cutter can exceed 40,000 degrees F. During the cutting process, an electric arc is struck between the electrode and the workpiece. The electrode is contained within a water- or air-cooled gas nozzle, creating a narrow, high-temperature, high-velocity plasma jet.
There are several different types of gases used within a plasma cutting system. The material being cut, the thickness of the material, and the quality of the cut needed will ultimately determine which gas is suitable for the job. The types of plasma-cutting gas include:
Plasma cutting systems use high-velocity ionized gas to create a flame to cut various electrically conductive metals. These metals include:
There are several benefits to using a plasma cutting system compared to other cutting methods. HD plasma cutting machines provide the following advantages:
Plasma cutting provides high-quality cutting for thicknesses up to 50mm, with maximum thickness cuts up to 150mm. The cutting depth is why HD plasma cutting is ideal for thicker metal pieces, and laser cutting provides more accuracy for thinner metal pieces.
What separates IMS from other steel suppliers? With an abundance of metal options and customer service that is second to none, IMS has you covered with the following metal stock advantages:
Looking for a world-class metal supply and distribution company that also provides in-house Hi-Def Plasma, Tube Laser, and Flatbed Laser Cutting services? IMS is your trusted supplier with decades of expertise. We stock products in the sizes and styles you need. Stop by one of our California or Arizona locations or request a quote today.