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How Stick Weld Steel to Cast Iron

Stick Welding Steel to Cast Iron

Welding is a difficult process, and it can be even harder when welding steel to cast iron. This type of welding requires skill, precision, and the right tools. Fortunately, stick welding is an effective technique for joining these two metals. Let’s look at the basics of stick welding steel to cast iron.

Understanding the Basics

Before beginning any welding project, it’s important to understand the basics of the process. Stick welding is an arc-welding process in which a consumable electrode—or “stick”—forms an electric arc between it and the base metal. The electrode melts into a pool of molten metal that cools to form a strong bond between two pieces of metal. When using this method for welding steel to cast iron, it’s important to note that several variables need to be considered for successful results.

Choosing the Right Electrode

When choosing an electrode for stick welding steel to cast iron, it’s best to select one with high carbon content, such as AWS E7016 or AWS E7018. These electrodes will provide maximum weld penetration and are explicitly designed for joining dissimilar metals such as steel and cast iron. It’s also important to ensure that you use the correct size electrode; generally speaking, larger electrodes provide deeper penetration, while smaller electrodes provide more control over your weld bead size and shape.

Welding Process

Once you have selected your electrode, it’s time to start your weld! Begin by preheating both pieces of metal with a torch before striking an arc on one side of the joint. When starting your arc, ensure not to strike too close or far from the joint, as this can cause spatter or damage your workpiece. Once your arc has been established, move your electrode along the joint in short back-and-forth movements while maintaining a consistent amperage and speed; this will help produce an even weld bead with minimal porosity or slag inclusion defects. After completing each pass along the joint, inspect your work before continuing onto another pass if necessary. Finally, once you have completed all passes along both sides of the joint, allow ample time for cooling before handling your workpiece, as sudden temperature changes can lead to cracking or other permanent damage!


Stick welding is an excellent way of joining steel and cast iron together; however, it requires skill and precision to get good results every time. Make sure you understand all stick welding aspects before attempting projects with these metals! Also, remember safety first—proper safety equipment should always be worn when working with any hot metal! With practice comes perfection; if followed correctly, these tips will help you become a master welder in no time!

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