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Metals Abbreviations and Acronyms

Abbreviation Definition
AA Aluminum Association
AAR Association of American Railroads
ABS American Bureau of Shipbuilding
ACD Annealed and Cold Drawn
ACDQ Accelerated Cooling Direct Quench
ACI Alloy Casting Institute
ADI Austempered Ductile Iron
AFNOR Association Francaise de Normalisation
AGA American Gas Association
AISI American Iron and Steel Institute
AMS Aerospace Materials Specifications
AOD Argon Oxygen Decarburization
API American Petroleum Institute
AQ Aircraft Quality
AREA American Railway Engineering Association
ASCE American Society of Civil Engineers
ASIE American Society of Industrial Engineers
ASM American Society for Metals (now ASM International)
ASME American Society of Mechanical Engineers
ASQ Aircraft Structural Quality
ASQ Axle Shaft Quality
ASTM American Society for Testing and Materials
AWWA American Water Works Association
BH Bake Hardenable (Steel)
BSI British Standards Institute
BSSA British Stainless Steel Association
CD Cold Drawn
CDA Copper Development Association
CERF Civil Engineering Research Foundation
CF Cold Formed or Cold Finished
CHQ Cold Heading Quality
COF Coefficient of Friction
CQ Commercial Quality
CR Cold Rolled
CRES Corrosion REsistant Steel
CS Commercial Steel
CSA Canadian Standards Associates
CTE Coefficient of Thermal Expansion
CVD Chemical Vapor Deposition
CW Cold Worked
CW Cold Worked
D Steel Dual Phase Steel
DA Duplex Annealed
DDQ Deep Drawing Quality
DDS Deep Drawing Steel
DIN Deutches Institut für Normung
DIPRA Ductile Iron Pipe Research Association
DIS Ductile Iron Society
DMLS Direct Metal Laser Sintering (Rapid Protoyping/3D Printing Technique)
DOE Department of Energy (US Government)
DQ Drawing Quality
DQSK Drawing Quality Special Killed
DR Dent Resistant (Steel)
DS Drawing Steel
EDDQ Extra Deep Drawing Quality
EDDS Extra Deep Drawing Steel
ELI Extra Low Interstitial
EMI Electromagnetic Interference
EPA Environmental Protection Agency (US Government)
ERW Electrical Resistance Welding
ESCR Environmental Stress Cracking Resistance
ESR Electroslag Remelting
FDA Food and Drug Administration (US Government)
FED Federal Specification Number
FM Factory Mutual
Frg Forging
GMAW Gas Metal Arc Welding
GP General Purpose
GTAW Gas Tungsten Arc Welding
HAZ Heat Affected Zone (welding/joining)
HB Brinell Hardness Number
HE Hot Extruded
HF Hot Finished
HIP Hot Isostatic Pressing
HR Hot Rolled
HRA Rockwell A Hardness Number
HRB Rockwell B Hardness Number
HRC Rockwell C Hardness Number
HRPO Hot Rolled, Pickled and Oiled
HSLA High Strength Low Alloy (Steel)
HSS Hollow Structural Steel
HT Heat Treated
HV Vickers Hardness
HW Hot Worked or Hot Wrought
ISO International Standards Organization
JIS Japan Industrial Standard
ksi 1000 pounds per square inch (kilo-psi)
MASH Mean Apparent Specific Heat
MIL SPEC Military Specification Number
MIM Metal Injection Molding
MMA Manual Metal Arc Welding
MMC Metal Matrix Composite
MSE Materials Science and Engineering
NACE National Association of Corrosion Engineers
NASA National Aeronautics and Space Administration (US)
NB No Break (Applied to Impact Test Results)
NCD Normalized and Cold Drawn
NHT Not Heat Treated
NIST National Institute of Standards and Technology
NSF National Sanitation Foundation (nonregulatory agency)
OEM Original Equipment Manufacturer
OSHA Occupation Safety and Health Administration (US Government)
PH Precipitation Hardened
PHT Precipitation Heat Treated
PM (P/M) Powder Metallurgy
POP Point of Purchase (Marketing Displays)
PVQ Pressure Vessel Quality
QA Quenched and Aged
QT Quenched and Tempered
RQ Regular Quality
RT Room Temperature
S Steel Structural Quality Grade Steel
SA Solution Annealed
SACD Spheroidized Annealed and Cold Drawn
SAE Society of Automotive Engineers
SCHQ Special Cold Heading Quality
SHT Solution Heat Treated
SLM Selective Laser Melting (Rapid Protoyping/3D Printing Technique)
SLS Selective Laser Sintering (Rapid Protoyping/3D Printing Technique)
SMA Shape Memory Alloy
SMAW Shielded Metal Arc Welding
Smls Seamless
SQ Structural Quality
SQ Saw Quality
SQ Solution Quenched
SQA Solution Quenched and Annealed
SR Stress Relieved
SS Stainless Steel
SS Structural Steel
STA Solution Treated and Aged
STOA Solution Treated and Overaged
TA Triplex Annealed
TC Tungsten Carbide
TCT Tungsten Carbide Tipped
TYS Tensile Yield Strength
UNI Ente Nationale Italiano di Unificazione (Italian standards body)
UNS Unified Numbering System
UTS Ultimate Tensile Strength
VAR Vacuum Arc Remelting
VCD Vacuum Carbon Deoxidation
VIM Vacuum Induction Melting
W Steel Weathering Grade Steel
WC Tungsten Carbide
X Steel Low Alloy Grade Steel
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