If you are involved in the welding industry you are constantly surrounded by all sorts of acronyms. Below is a list of the most commonly used abbreviations in our industry.
ABS American Bureau of Shipping
AC Alternating current
AlSl American Iron and Steel Institute.
AMP Amperes (measure of current)
ANSI American National Standard Institute.
Ar Argon (inert shielding gas)
ASM American Society for Metals.
ASME American Society of Mechanical Engineering
ASTM American Society for Testing and Materials.
AWS American Welding Society.
BS British Standard.
BV Bureau Veritas (French classification institute)
CE Equipment with CE-markings fulfills the basic requirements of the Low Voltage and Electromagnetic Compatibility Guideline.
CSA Equipment with CSA-Test mark fulfills the requirements made in the relevant standards for Canada and the USA.
CO2 Carbon Dioxide
CTWD Contact Tip to Work Distance
CWE Certified Welding Educator
CWI Certified Welding Inspector
CWB Canadian Welding Bureau
DC Direct Current
DCEN Direct Current Electrode Negative polarity (DC-)
DCEP Direct Current Electrode Positive polarity (DC+)
DNV Det Norske Veritas (Norwegian classification institute).
EN Euro Norm (The European Community for standardization has developed a nomenclature in welding)
ESO Electrical Stick Out
FCAW Flux Cored Arc Welding
FCAW-GS Flux Cored Arc Welding – Gas Shielded
FCAW-SS Flux Cored Arc Welding – Self Shielded
Ft-Lb Foot Pounds
GMAW Gas Metal Arc Welding
GMAW-P Gas Metal Arc Welding Pulse (transfer)
GTAW Gas Tungsten Arc Welding
IPT Inter Pass Temperature
LR Lloyds Register of Shipping (British classification Society)
MAG Metal Active Gas (see also GMAW).
MIG Metal Inert Gas
MPa Mega Pascal
NDT Non Destructive Testing
NS Norwegian Standards Association.
NSFI Norwegian Research Institute for Ships.
PAW Plasma Arc Welding
PPM Parts Per Million
PQR Procedure Qualification Record
PWHT Post Weld Heat Treatment
RT Radiographic Testing (X-ray)
SAW Submerged Arc Welding
SMAW Shielded Metal Arc Welding (stick welding)
TIG Tungsten Inert Gas (See GTAW)
TS Travel Speed
UT Ultrasonic Testing
V Volts or Voltage
VT Visual Testing
WFS Wire Feed Speed
WPS Welding Procedure Specification
Did we leave out any commonly used acronyms? Do you have an acronym you need help with?