WELDING ELECTRODES CLASSIFICATION & SPECIFICATIONS (API 1104)

AWS Specification:

AWS classifications like A5.1, A5.5, A5.18, A5.20, A5.28, A5.29, A5.36 refer to different types of electrodes categorized by their chemical compositions, mechanical properties, and intended applications.

AWS Classification:

The AWS classification code (e.g., E7018, ER70S-6) provides specific information about the electrode type, tensile strength, welding position, and coating or shielding type.

Shielding Gas Requirement:

Shielding gas is required for use with electrodes in Group 5. This is typical for solid wire electrodes used in GMAW (MIG) or FCAW processes, which rely on external shielding to protect the weld pool.