In an SMAW electrode code such as Exx1x, the third digit indicates which feature?

• A. Tensile strength
• B. Position(s) for electrode use
• C. Flux coating type
• D. Welding current type

Answer: (B)

The numbers in an SMAW electrode designation are a code for what the electrode can do. After the E and the two digits that indicate minimum tensile strength, the next digit shows the welding positions the electrode is approved for. A 1 in that position means all positions (flat, horizontal, vertical, and overhead); a 2 would mean flat or limited positions. So in Exx1x, the third digit being 1 tells you this electrode is intended for use in all welding positions. The other digits cover strength and coating/current characteristics, not the position.