Welding electrodes come in various shapes and sizes, but all have a specific code that identifies them. The code usually includes the following:


Welding is a widespread trade, and welding electrodes are an essential part of the process. Codes regulate the use of welding electrodes, and understanding how to read these codes is necessary for proper electrode use.

This article will help you understand how to read welding electrode codes.

Read Welding Electrode Codes

What are welding electrode codes?

Welding electrode codes are numbers and letters that indicate the type of welding rod or filler metal used in a specific welding application.

The first two digits of the code refer to the minimum tensile strength of the electrode in thousands of pounds per square inch (PSI), while the last letter denotes the position in which the electrode can be used.

Standard electrode codes include:

Master the Art of Welding Like a Pro – Learn How to Read Welding Electrode Codes with Our Expert Guide and Ensure Perfect Welds Every Time

Read Welding Electrode Codes
Read Welding Electrode Codes

How to Read a Welding Electrode Code

To read a welding electrode code, you need to understand the meanings of the various numbers and letters used.

Here is a quick guide:

The last two numbers indicate the diameter of the electrode in millimeters.

For example, an electrode with a code of E6013 would be a low hydrogen electrode for use with either DC or AC power and has a diameter of 3/32 inches (2.4 mm).


What to Do if You Don’t Understand a Welding Electrode Code

For a welder, knowing how to read welding electrode codes is essential. This is because the electrode’s code will tell you a lot about the properties of the electrode and how it should be used.

However, if you need help understanding a welding electrode code, don’t worry. there are some things you can do to try and figure it out.

First, check the manufacturer’s website or contact customer service. They may have more information about the meaning of the code.

If you’re still having trouble, try looking up the code in a welding reference book. These books usually have more detailed information about welding electrodes and their principles.

Finally, if you still need help figuring out the meaning of the code, ask another welder or someone who knows more about welding electrodes. They can help you understand what the code means.

Read Welding Electrode Codes

What is the Difference between a Welding electrode Code and a Gas Code?

Welding electrode codes and gas codes are ways to identify the materials used in a welding process.

The Difference between the two is that welding electrode codes are used to determine the type of electrode, while gas codes are used to identify the type of gas.

Electrode codes are stamped on the side of the electrode and indicate the manufacturer, alloy, and current range. Gas codes are typically found on the cylinder or bottle and identify the contents inside.

Read Welding Electrode Codes


In conclusion, knowing how to read welding electrode codes is essential to ensure that you are using the correct electrode for your project.

Understanding the basic code structure allows you to quickly and easily determine which electrode is suitable for the job. With some practice, you’ll be reading welding electrode codes like a pro in no time!