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 |