An electrode or a welding rod is a wire which is made up of wire and is coated. In most cases 100% Argon is what most shipyards, power plants and fab shops use no matter what the thickness of the aluminum is. Popular Stick Electrodes. Right Kind of Gas and Filler Wire. This electric arc … The arc is created between the two joining surfaces and filled … MIG Welding carbon steel or mild steels are typically welded with a ER70s-6" electrode using either 100% Carbon Dioxide gas or C25 gas that is 25% Carbon Dioxide and 75% Argon mixture. Carbon dioxide can be used alone also and it is effective while welding thinner metals. Stainless Steel Grades: 309 Stainless and Welding Carbon Steel to Stainless Steel or Low Alloy Steels. The gas and the filler wire are the major components in the setup … Several manufactures have developed electrodes specifically for welding weathering steel. For Aluminum, electrodes are designated as ER4043, ER5350 etc. Stainless Steel is typically welded with the electrode classes and they are: The 309 series has a multi use designation because it is used to weld stainless steel to mild or stainless to carbon or low alloy steels. With DCEN, the negative terminal inside your machine is hooked up to your electrode (your MIG gun… The gas used most of the time is the same C2 or 2% carbon dioxide and 98% Argon. The Voltage controls the weld profile. Aluminum Grades: 2014, 3003, 3004, 4043, 5052, 6061, 6062 and 6063. For your all position welds an E71T-1 electrode wire. These … GMAW (MIG Welding) electrode specification. Consumable electrodes have low melting point. MIG welding is the most basic type of welding process, which is suitable for starters. MIG welding is a welding process in which an electric arc forms between a wire electrode and the workpiece metal. Y – Designates the chemical composition of the additives such as deoxidizing agent or cleansing agent used on the electrode, it may affect the polarity setting also. For making consumable electrodes, materials such as mild steel and nickel steel are used. Anyway, the blog is very informative. Electrodes classification and designation is as follows: The ER4043 is the most commonly used MIG filler wire. In either case, the GMAW process lends itself to weld a wide range of both solid carbon steel and tubular metal-cored electrodes. The two base materials are melted together … In most cases the gas used is always 100% Argon and in rare cases a helium/Argon mix may be used on base metals thicker than ½ of a inch. The electrode is made up of materials which are similar to that of the metals chosen to be welded. Most Commonly Used Stainless Steel MIG Welding Electrode and Gas Mix Stainless Steel MIG weld done with ER308L Weld Wire and C2 gas. Electrodes alloyed with copper, nickel and chromium are typically necessary to achieve color-match. In MIG and GMAW welding, a continuous solid wire electrode travels through the welding gun, along with a shielding gas to shield the process from contaminants in the air, and into the weld pool. Whereas, other shielding gases such as Argon and Helium are inert in nature. Gas metal arc welding (GMAW), sometimes referred to by its subtypes metal inert gas (MIG) is a welding process in which an electric arc forms between a consumable MIG wire electrode and the workpiece … Currently you have JavaScript disabled. For MIG welding use an argon 10 to 15% CO2 mix. The base metals the ER316 welds are stainless grades 304,305, 308, 310, 312, 314, 316, 317, 321, 347 and 348. In order to post comments, please make sure JavaScript and Cookies are enabled, and reload the page. These electrodes are designated in a different way. very informative article clear a lot of my concepts about mig welding, Your email address will not be published. Was going to say the same thing, good observation. No matter what you do the welds seems to look rough compared to welding stainless steel to stainless steel. Hence, whenever theses gases are used as shielding gas, the term MIG (Metal Inert Gas) welding is used.). These stainless electrodes are mostly used for lower grade stainless steels 301, 302, 304, 305, and 308. ER – Designates a welding electrode or filler wire, 70 – Designates the minimum tensile strength of the deposited weld metal shall be 70 Ksi or 70,000 Psi. In MIG/MAG welding, Voltage, Current and wire feed speed must be controlled for sound welding. Here is the electrode designation: These stainless electrodes are mostly used for higher grade stainless steels mainly in the food industries and marine applications. Since you don’t have to replace your electrode as often, you can lay down bead after bead without having to worry. There are many other mixtures to choose from and that all depends on you welding supplier has to offer. Lincoln Electric - Fleetweld 37 E6013 Stick Electrodes. Following gases are used as shielding gas; (NOTE: Whenever Carbon dioxide is used as shielding gas in Gas Metal Arc Welding (GMAW). We are a professionally … As for gasses the C2 (2% carbon dioxide and 98% Argon) is the most widely used. Some of the commonly used stainless steel electrodes are ER308L and ER309L etc. There are two typical choices and they are: Now there are other choices but is rare to need any other electrodes. Select from our complete offering of MIG Welding Wire, TIG Tungsten, TIG Filler Rods & Welding Electrodes available in most popular diameters and for all Steel and Aluminum metal alloys. It welds aluminum grades 5050, 5052, 5056, 5083, 5086, 5154, 5356, 5454, 5456. I will explain the meaning of these symbols: FOR CARBON STEEL OR MILD STEEL (SUCH AS ER70S-6 OR ER70S-3), XX – Designates the minimum tensile strength of the deposited weld metal. Welding electrodes – Understanding the SMAW electrode symbols. The rods used for MIG and stick welding are examples of consumable electrodes. In the case of aluminium filler material also, last three digits are specifying the chemical composition or grade only, not just the amount of silicon. This process is a very smooth transfer of molten metal droplets from the end of the electrode to the molten pool. Some are much thicker for heavy industrial applications. Other advantages include high electrode … This video is an introduction to the welding process known as MIG. If you are a at home welder then use a small diameter electrode whenever you can. GMAW (MIG welding) electrodes are designated by some letters and numbers such as ER70S-6, ER90S-6 and E308L etc. The welding wire in MIG welding runs continuously with lesser downtime for electrodes replacement; MIG welding is excellent for tack and spot welds; Limitations of MIG Welding. Just remember when it comes to MIG welding a single electrode size welds a wide range of metal thicknesses because it is the machine set-up that determines the metal thickness that will be welded. Similarly, with TIG welding, the electrical current passes through the tungsten electrode and … For flux cored use a mix with 20 to 25% CO2. It is also commonly welded to Carbon steel on the same jobs. Weldcote Metals - 6010 Mild Steel Electrodes. MIG is also a faster process than stick welding. In fact, MIG … The one precaution that you must take is to replace consumable electrodes … These types of welding electrodes are preferred to use in Metal Inert Gas (MIG) welding. 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