API	American Petroleum Institute
ASTM	American Society of Testing of Materials
Cr–Mo	Chrome–molybdenum steels
DBTT	Ductile-to-brittle transition temperature
EDX	Energy dispersive X-ray
FCAW	Flux-cored arc welding
GMAW	Gas metal arc welding
HAZ	Heat-affected zone
MCAW	Metal-cored arc welding
PWHT	Post-weld heat treatment
RMD	Regulated metal deposition
SCHT	Step cooling heat treatment
SEM	Scanning electron microscopy
SMAW	Shielded metal arc welding