9018 Welding Rod Application

Welding consumables catalog ı 43 stick smaw electrode excalibur 9018 b3 mr welding positions typical applications all except vertical down 2 25 chromium 1 molybdenum steels power generation petrochemical pressure vessels process piping designed for all position welding of 2 25 chromium 1 molybdenum low alloy steels premium arc.
9018 welding rod application. Also referred to as a low hydrogen rod this electrode has a flux coating with a very low hydrogen content allowing a minimal amount of hydrogen into the weld puddle the molten weld beads are protected from contamination moisture and hydrogen in the atmosphere by the iron containing powder. A current is fed through this wire which helps to join two pieces of metal together firmly. The e7018 is a versatile welding rod frequently used for low and medium carbon steel welding. The tungsten electrode is defined as a non filler metal electrode used in arc welding or cutting made principally of tungsten.
The carbon electrode is a non filler metal electrode used in arc welding or cutting consisting of a carbon graphite rod which may or may not be coated with copper or other coatings. Type 347 stainless steel filler metal is ideal for 347 and 321 base materials because it matches these stabilized grades. If you do not keep it in a rod oven after opening the can it will absorb water and cause cracks in high strength steel. Cf 8c is the cast equivalent.
The welding rod is the piece of wire connected to the welding machine. Welding positions conformances aws 5 5 bs 2493 e9018 d1 mnmobh all except vertical down 1 typical all weld metal 2 measured with 0 2 offset 3 see test results disclaimer 4 perferred polarity is listed first. Cg 12 is the cast equivalent of 309. Mechanical properties 1 as required per aws a5 5 yield strength 2.
The principal application of atom arc 9018 cm electrodes is for welding 2 1 2 cr 1 mo steels commonly found in pressure vessels heat exchangers pipings and other related components. These welding rods are referred to as consumable electrodes. In certain cases namely smaw and stick welders the wires actually melt becoming part of the weld itself. Some 308l applications may be substituted with 309l filler metal but 316l or 316 applications generally require molybdenum and 309l contains no molybdenum.
My understanding is 8918 and 9018 are also low hydrogen rods.