Glossary
Boilermaker Terms & Vocabulary
15 essential boilermaker terms with plain-English definitions: the vocabulary you’ll hear in training and on day one.
Key boilermaker vocabulary
These 15 terms come up constantly in boilermaker training, on the job and in interviews. Knowing them helps you follow instructions, document accurately and sound prepared.
- Apprenticeship
- Paid structured training.
- ASME code
- Boiler standards.
- Blueprint
- Construction drawing.
- Boiler
- Steam generator.
- Fit-up
- Positioning before welding.
- Header
- Pipe that collects tubes.
- Hydrostatic test
- Water pressure test.
- Journeyman
- Fully trained worker.
- OSHA
- Workplace safety agency.
- Outage
- Planned plant shutdown.
- Pressure vessel
- Tank under pressure.
- Punch list
- Final fix list.
- Rigging
- Lifting setup.
- Stack
- Chimney.
- Tube
- Boiler pipe.
Practice these terms
Test yourself with the free Boilermaker practice test: it includes vocabulary questions built from this list. For a complete course, see Boilermaker training.
Browse terms from every career in our career glossary.