The Forney 31610 6010 mild steel Flexiweld is an all purpose electrode used in all positions. A deep penetrating rod for carbon and galvanized steel. 6010 is for use with a DC welder and runs on DCEP (reverse polarity). It is ideal for welding through light to medium amounts of dirt, rust or paint. Forney Industries is one of America's longest operating family-owned metal working product companies. Founded in 1932, Forney offers more than 5,000 products for the hardware, automotive, farm and ranch and do-it-yourself markets. If you've got metal working questions, we've got answers. We're committed to your success regardless of location size or needs. 1/8 inch (3.18 mm) rod diameter. 10 pound (4.54 Kg) box or rod. 60,000 PSI tensile strength. Amperage is 65-130 amp range. Typical spec example E6011: E is for electrode. The next two numbers (60, 70 or 80) indicates the tensile strength of the rod (for example 60,000). The third number tells the welding position; (1)=All position (2)=Flat or horizontal position (4)=Flat, horizontal, overhead and vertical down position. The fourth number indicates the type of current to be used and coating of the rod; (0)=Cellulose sodium, with deep penetration, use direct current electrode positive (1)=Cellulose potassium, with deep penetration, use AC or direct current electrode positive, or direct current Electrode Negative (3)=Titania Potassium, with light penetration, use AC or Direct Current Electrode Positive (8)=Low Hydrogen, Iron Powder, with medium penetration use AC or Direct Current Electrode Positive. Proof of purchase required. neglect, negligence or accident, or that has been used in any way contrary to the purpose intended.