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Sub Arc Welding Stainless Steel – An Overview

Sub Arc Welding Stainless Steel

Sub-arc welding is a process used to weld stainless steel, alloy steel, and many other metals. It is often used in applications that involve thick materials, as it allows for deeper penetration with less heat input than other processes. In this blog post, we will take a look at the basics of sub-arc welding for stainless steel and how it can benefit your project.

Sub Arc Welding Process

Sub-arc welding utilizes an electric arc to transfer heat energy from the electrode to the workpiece material. The arc is generated by an electric power source and directed at the joint between two pieces of metal. A flux-coated wire feeder supplies a continuous wire feed into the weld joint, while a shielding gas is supplied around the weld area to protect it from contaminants in the environment. As the wire feeds into the weld joint, an electric current creates an arc that melts both pieces of metal and fuses them together.

Sub Arc Welding Advantages

One of the biggest advantages of sub-arc welding is that it produces high-quality welds with minimal heat input. This means that less distortion occurs during welding, resulting in stronger joints with less risk of cracking or warping over time. Additionally, because there is less heat involved in sub-arc welding compared to other processes, there is also significantly less spatter produced during welding – making clean-up much easier after a job has been completed. Finally, because sub-arc welding requires fewer passes than other processes when joining thicker materials, it can be much more efficient and cost-effective for projects involving larger pieces or multiple components.


Sub-arc welding offers many advantages when working with stainless steel and other metals compared to traditional methods such as shielded metal arc (SMAW) or gas metal arc (GMAW). Not only does it produce high-quality welds with less distortion, but it also requires fewer passes when joining thicker materials – saving time and money on your project! With its low heat input and minimal spatter production, sub-arc welding provides a reliable process for fabricating strong joints quickly and efficiently. If you are looking for a way to join stainless steel components with greater accuracy and efficiency than ever before, then consider using sub-arc welding today!

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