Softweld 99Ni (AWS class ENi-CI) is a nominally 99% Nickel electrode. Nickel is expensive, and so, therefore, is this premium electrode. The electrode will deposit welds that are machine-able, an important consideration when the casting is to be machined after welding. Repairs made with Softweld 99Ni are often single pass welds with high admixture. Even with high admixture, the weld deposit will remain machine-able. It works best on castings with low or medium phosphorous contents. AWS E6013 (CB-J421) is a kind of carbon steel electrode with titania type coating. It is widely used on AC and DC in all positions and suitably for welding low-carbon steel structures, especially suitable for welding on thin plates and cosmetic welding which requires the weld beads to be beautiful and glossy. Aws E7018used for welding carbon steel and low-alloy steel strutures, such as 16Mn, etc. AWS E6011suitable for butt welding , fillet welding and lap welding on thin plates, such as low-carbon steel structures like flues of power stations, air ducts, transformer oil tanks, hulls, exterior panels of cars, etc. Product Name E6011 E6013 E7018 Model CB-J425 CB-J421 CB-J507 GB E4311 E4313 E5018 Diameter(mm) 2.5-5.0 2.5-5.0 2.5-5.0 Type of Coating Cellulose Type Tiatania Type Low-hydrogen Type Current AC DC AC DC AC DC Weldmetalchemicalcomposition;