AWS A5.18 ER70S-6 is standard MIG welding of carbon steel. E, R refers electrod or rod. E, R is the meaning of the wire. Can only represented by E. 70 refers to the use of the post-deposited metal welded wire minimum tensile strength of 70ksi (480MPa). S is a solid acronym. Meaning that for solid core wire. In addition to S, but here as standard C (composite) indicates that the wire for the metal core. 6 shows the deposited metal wire components or ingredients, with specific reference standards.
AWS A5.28 ER100S-G is a gas-welding low alloy steels standards. E, R as defined above. 100 meaning as above. Represents the minimum tensile strength of 100ksi (690MPa). S meaning as above. G is still the standard ingredients.
