The welding electrode polarity chart for stick welding electrodes E6010, E6012, E6013, E7014, E7015, E7018, and E7024 is shown in the below picture. but switching to AC polarity (if you're using a rod capable of AC current) is a cure because then the electricity is switching directions 60 times a second and does not give enough time for a magnetic field to form. Some electrodes can run on both AC, DCEP, and DCEN Polarities while some are good only with DCEP or DCEN. The tensile strength of 6013 is 60000 psi and 7the 018 stick. Other differences between 60 welding rods include the material composition and the temper. 6013 welding rods have a diameter of 0.8 inches, while 7018 welding rods have a diameter of 1.25 inches. electrode angle should be roughly 45 degrees between the left and right members with a slight upward push angle. DCEP with 110-125 amps will work on 1/4' and thicker metal as long as arc length is good. 3f vertical is where gravity starts to make things less forgiving. it can really make you mad if you don't know how to control it before it happens, or while it's happening because it will blow a giant crater in your piece faster than you can fill it. The most common difference between 60 welding rods is the diameter. 3F Vertical uphill Tee joint with 1/8' 7018 welding rod. magnetic arc blow is when you have electricity flowing in only one direction (DC+ or DC-) and it turns your piece of steel into an electromagnet and it forces your arc to stray toward or away from the puddle, depending on which direction the magnetism is pointed. there are ways of controlling how hot a puddle gets on thin materials so it doesn't burn through, so you shouldn't have to use AC for anything. in your case, DC+ would be the best polarity. if you get a MIG setup you would use DC+. if you get a flux core setup you can use DC+ or DC-, depending on the type of flux core. if you got a TIG setup, you would use DC- for steel and stainless steel and AC for aluminum. Read more: 7018 Welding Rod: Everything you need to know. DC- is used for some hard surfacing rods to minimize heat input to the base metal. ![]() 7018 can be used easily with DECP due to the presence of potassium in its coating. Most machines have a polarity switch, some you have to physically switch the leads. Certain rods (E-6010, 7010, 8010) are DC+ only, but these are primarily used for open root pipe (downhill), hot, fill and cap passes on cross country pipelines. but i've usually overcome that drawback by turning the amperage up a little to compensate for the "colder" arc in AC. 7018 welding rod is a DCEP & AC polarity welding electrode used for carbon steel welding. 7018 AC rods have a special ion gas in the flux so they will run successfully. i've found that AC makes a 7018 rod stick more than DC+ when you start the arc. i've tried welding w/ DC- and these 2 rods, but the arc isn't stable at all and tends to stick a lot when you try to start the arc. i use DC+ and E6010 or E7018 most of the time.
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