TIG
Abbreviation with 3 meanings
| Stands for | Tungsten inert gas (welding) |
|---|---|
| Meanings | 3 |
| Categories | Science & Engineering, Military, Medical |
TIG has three meanings. The most common are Tungsten inert gas (welding) (engineering) and Time in grade (military term); it can also stand for Tetanus immune globulin.
Meanings of TIG at a glance
| # | TIG stands for | Context |
|---|---|---|
| 1 | Tungsten inert gas (welding) | Science & Engineering › Engineering |
| 2 | Time in grade | Military › Military Term |
| 3 | Tetanus immune globulin | Medical › Drug |
1. Tungsten inert gas (welding)
Science & Engineering · Engineering Abbreviations
Arc welding process that uses a non-consumable tungsten electrode and an inert shielding gas, usually argon, with filler rod added by hand. TIG produces precise, clean welds on thin metals, stainless steel, aluminum and titanium, but it is slower and requires more skill than MIG.
Example: The bike frame's titanium joints were TIG welded with a full argon purge inside the tubes.
The formal name is gas tungsten arc welding (GTAW). Russell Meredith developed the process at Northrop around 1941 to weld magnesium aircraft parts, and it was marketed as Heliarc because it used helium. Alternating current is used for aluminum to break up its oxide layer.
2. Time in grade
Military · Military Term Abbreviations
Length of time a member has held the current pay grade, counted from the date of rank, used to determine eligibility for promotion and for retiring at a given grade.
Example: He meets the TIG requirement for staff sergeant but still needs the Advanced Leader Course.
Officers generally must serve three years in grade to retire in grades above O-4, though waivers exist. Enlisted promotion systems combine time-in-grade and time-in-service minimums. Time in grade also breaks ties on some promotion lists and affects seniority among members of the same rank.
3. Tetanus immune globulin
Medical · Drug Abbreviations
Human antibodies against tetanus toxin, given for tetanus-prone wounds in people who have had fewer than three tetanus vaccine doses or an unknown history, and as part of treatment for active tetanus.
Example: Dirty wound, vaccine history unknown: Tdap plus TIG 250 units IM in opposite arm.
TIG neutralizes circulating toxin but cannot reverse toxin already bound to nerves. It is given at a different site from the tetanus vaccine. Active tetanus is rare in countries with high vaccination rates, but most US cases occur in people who never completed the primary series.
Related abbreviations
More engineering abbreviations
- SIL – Safety integrity level
- SMAW – Shielded metal arc welding
- SPC – Statistical process control
- SS – Stainless steel
- TRL – Technology readiness level
- ULS – Ultimate limit state
- UNC – Unified National Coarse (thread)
- UNF – Unified National Fine (thread)
See all 79 engineering abbreviations →
More military term abbreviations
- TBS – The Basic School
- TCCC – Tactical Combat Casualty Care
- TCP – Traffic control point
- TDY – Temporary duty
- TIS – Time in service
- TOC – Tactical operations center
- TS/SCI – Top Secret/Sensitive Compartmented Information
- TTP – Tactics, techniques and procedures
See all 248 military term abbreviations →
This entry is for general education and is not medical advice. Abbreviation use varies between institutions; always confirm in context.