File Name: welding rod numbers and uses .zip
The e stick electrode or welding rod is one of the wellknown fastfreeze electrode types. Apr 02, the american welding societys specifications are most widely used for specifying bare welding rod and electrode wires. The fast freeze rods have a strong arc force that helps burn off surface impurities. These rods can be used to weld painted, greasy and rusty steel. The arc is created between a nonconsumable tungsten electrode and the workpiece.
There is much more to know about electrodes apart from the material used to make them or whether they are consumable or non-consumable. Before I write about the different types of rods , you need to know the general meaning of these numbers so that you can have a smooth sail in understanding them. The first two numbers on the size number of the electrode usually represent the tensile strength of the electrode. The number 1 stands for all position, 2 for flat and horizontal position, and 4 stands for overhead, vertical, horizontal, and flat electrode positions. Digits on the last number denote the coating that has been used and consequently the current that you can safely use. Welding rod is the generic term that is used to refer to the filler metal or electrodes, which are used to join 2 other base metals when a welder is carrying out shielded metal arc welding, abbreviated as SMAW. The following is a table detailing the different numbers that appear on electrodes and what they mean as offered by the American Welding Society :.
There are many different types of electrodes used in the shielded metal arc welding, SMAW process. The intent of this guide is to help with the identification and selection of these electrodes. Arc welding electrodes are identified using the A. Next will be either a 4 or 5 digit number stamped on the electrode. The first two numbers of a 4 digit number and the first 3 digits of a 5 digit number indicate the minimum tensile strength in thousands of pounds per square inch of the weld that the rod will produce, stress relieved. Examples would be as follows:.
Welders Universe. And since scores of product lines exist, along with a variety of classification systems, ordering these items can be something of an adventure. Regardless, several important variables will factor into your selection process:. Following these standards should insure selecting the right product to meet the welding code. While manufacturers produce their own proprietary brands and models of products, they nonetheless bear the identification of the appropriate industry classification. So always be on the lookout for this info when shopping around.
Receive monthly updates from IMS! Log in or use the form below to start receiving updates. Looking at an electrode, you can find the numbers stamped on the rods themselves. The most common electrode rods will start with 60 or These digits correspond to how many kilopounds per square inch KSI of tensile strength the electrode will create. In many cases, this means the weld itself is stronger than the materials you're fusing.
Probably the first thing you learnt about welding electrodes or welding rods is that they can either be consumable or non-consumable. But this is not the only thing you need to learn about rods. Welding rods are of different types with the most common welding rod sizes being the , , , , , and These seven have different characteristics that make them suited to different welding projects. It is, therefore, necessary that we look at each individually. This way at the end of this article you will be more informed on these four welding rod sizes and uses. When you buy a welding rod you will notice three sets of numbers imprinted on it.
portion of the electrode's range. When only AC otuput is available, use Fleetweld 35 or Fleetweld (E) electrode at about 10% higher current.
SMAW or stick electrodes are consumable, meaning they become part of the weld, while TIG electrodes are non-consumable as they do not melt and become part of the weld, requiring the use of a welding rod. Electrode selection is critical to ease of cleanup, weld strength, bead quality and for minimizing any spatter. Electrodes need to be stored in a moisture-free environment and carefully removed from any package follow the directions to avoid damage. When molten metal is exposed to air, it absorbs oxygen and nitrogen, and becomes brittle or is otherwise adversely affected. A slag cover is needed to protect molten or solidifying weld metal from the atmosphere.
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Stick electrodes are available in a wide range of types, each of which provides different mechanical properties and operates with a specific type of welding power source. There are several factors to consider in welding rod selection:. Before you power up your machine and pick up your electrode holder, learn more about each of these factors. The first step in choosing an electrode is to determine your base metal composition. Your goal is to match or closely match the electrode composition to the base metal type, which will help ensure a strong weld.
Whether your welding machine is electric or portable, the power source will provide either alternating current or direct current to the electrode. Alternating current flows in both directions, creating an amperage lag.
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