4g Weld Test -

The following parameters are typical for a 3/8" plate test using 1/8" E7018 electrodes:

The 4G weld test is crucial for several reasons: 4g weld test

The (4G = 4th Position, Groove weld) is a qualification test for welders performing overhead groove welding . In this position, the weld axis lies approximately horizontal, but the welder deposits the weld from the underside of the joint . The face of the weld is in a horizontal plane, and the welder must push the molten metal upward against gravity. The following parameters are typical for a 3/8"

Usually 3/8” or 1” thick steel plate (e.g., A36 steel). Preparation: Beveled edges (usually 22.5∘22.5 raised to the composed with power 37.5∘37.5 raised to the composed with power the weld axis lies approximately horizontal