2006年3月7日 · Each electrode is color-coded to eliminate confusion over its type. The color appears at the tip of the electrode. Pure tungsten electrodes (AWS classification EWP) contain 99.50 percent tungsten, have the highest consumption rate of all electrodes, and typically are less expensive than their alloyed counterparts.

2022年8月2日 · Welders use a tungsten color chart to choose the right color for the job. The chart lists all of the common tungsten colors and their corresponding temperatures. It also includes a guide for selecting the right color based on the type of metal being welded. The color of the weld can also be affected by the type of tungsten electrode used.

2024年1月4日 · What color tungsten is for stainless steel? The red TIG tungsten is the most commonly used electrode because the 2% thorium mixed with the tungsten is durable and versatile. The thorium allows for easier arc starts and higher current-carrying capacity.

2022年10月5日 · Ron Covell explains the different TIG tungsten options, the tungsten color code and how to sharpen and store these electrodes. One of the reasons TIG welding is favored for sensitive welding applications is because it gives the welder superlative control.

The color chart below summarizes the various TIG tungsten electrodes you may come across: Here are the most common types of tungsten electrodes: 1. Pure Tungsten (Color Code: Green) Pure tungsten electrodes, identified by their green color code, are primarily used for welding non-ferrous metals such as aluminum and magnesium.

Whether you’re welding steel, aluminum, or specialized alloys, selecting the correct tungsten electrode improves weld quality, minimizes contamination, and enhances efficiency. By using the appropriate color-coded electrode for each application, welders can achieve better results and reduce the risk of errors during the welding process.

Tungsten electrodes for AC welding of aluminium alloys; Only limited suitability for DC welding; WL electrodes: Increased ignitability thanks to lanthanum oxide; Suitable for DC and AC welding; Can be used for unalloyed and high-alloy steels; aluminium, titanium, nickel, copper and magnesium alloys; and for microplasma welding

2021年6月4日 · Following are the main type of tungsten rods used in TIG Welding as per the AWS A 5.12 Specification: Tungsten Electrodes for TIG/ Plasma Welding are classified and designated according to the AWS A5.12 and ISO 6848 Standard. A summary of tungsten electrode designation, type of oxide, and tip color is given in the below picture for reference.

2025年1月16日 · Thoriated Tungsten (Red): Ideal for DC welding of thin materials like stainless steel, titanium, and nickel alloys. Known for durability and superior arc starting capabilities. Lanthanated Tungsten (Gold/Blue): Versatile for both AC and DC welding, providing excellent arc stability and low erosion rates. Suitable for a wide range of metals.

color code and alloying elements for various tungsten electrode alloys *Color may be applied in the form of bands, dots, etc., at any point on the surface of the electrode. **Manufacturers must identify the type and nominal content of the rare earth oxide additions.