api 571
DESCRIPTION
apiTRANSCRIPT
API RP 577
Welding Inspection andMetallurgy
DefinitionsAutogenous weld: A fusion weld made without filler metal. (The most common of these types of welds is made on tubing and performed with Gas Tungsten Arc Welding often using an automated welding device).
Actual throat: The shortest distance between the weld root and the face of a fillet weld.