Abbreviations

Listed below are some common abbreviations of industry terms in regards to mechanical testing, metallurgical testing, and welding procedures. 

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BHN               Brinell hardness number, also HB

CNC              Computer Numeric Control

DWTT            Drop-Weight Tear Test

DSAW            Doubled Submerged Arc Welded

ERW              Electric Resistance Welding

ESW               Electro Slag Welding

FCAW            Flux Cored Arc Welding

GMAW           Gas Metal Arc Welding

GTAW            Gas Tungsten Arc Welding

HAZ                Heat Affected Zone

HB                   Brinell hardness number, also BHN

HR                   Rockwell hardness number

HSS                High Speed Steel

HV                   Vickers hardness number

IIW                   International Institute of Welding

JIS                   Japanese Industrial Standard

Kgf                  kilograms-force

kN                   kilo-Newton

kJ                    kilo-Joule

NPS                Nominal pipe size

OES                Optical (Spark) Emission Spectroscopy

PSL                Product Specification Level

PWHT             Post Weld Heat Treatment

SAW               Submerged Arc Welding

SMAW            Shielded Metal Arc Welding

SMLS             Seamless

WPS               Welding Procedure Specification

XPS                X-ray Photoelectron Spectroscopy

XRF                X-ray Fluorescence Spectroscopy

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