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Boilermakers - 47-2011.00

O*NET-SOC Description

Construct, assemble, maintain, and repair stationary steam boilers and boiler house auxiliaries. Align structures or plate sections to assemble boiler frame tanks or vats, following blueprints. Work involves use of hand and power tools, plumb bobs, levels, wedges, dogs, or turnbuckles. Assist in testing assembled vessels. Direct cleaning of boilers and boiler furnaces. Inspect and repair boiler fittings, such as safety valves, regulators, automatic-control mechanisms, water columns, and auxiliary machines.

Sample of Reported Job Titles

  • Boiler Maker
  • Boiler Mechanic
  • Boiler Repairman
  • Boiler Service Technician
  • Boiler Technician
  • Boilermaker
  • Boilermaker Mechanic
  • Boilermaker Pipe Fitter
  • Boilermaker Welder
  • Service Technician

SOC Occupation Groups

47-0000 Construction and Extraction Occupations
47-2000 Construction Trades Workers
47-2010 Boilermakers
47-2011.00 Boilermakers

Related Occupations


  • Assemble large vessels in an on-site fabrication shop prior to installation to ensure proper fit.
  • Attach rigging and signal crane or hoist operators to lift heavy frame and plate sections or other parts into place.
  • Bell, bead with power hammers, or weld pressure vessel tube ends to ensure leakproof joints.
  • Bolt or arc weld pressure vessel structures and parts together, using wrenches or welding equipment.
  • Clean pressure vessel equipment, using scrapers, wire brushes, and cleaning solvents.
  • Examine boilers, pressure vessels, tanks, or vats to locate defects, such as leaks, weak spots, or defective sections, so that they can be repaired.
  • Inspect assembled vessels or individual components, such as tubes, fittings, valves, controls, or auxiliary mechanisms, to locate any defects.
  • Install manholes, handholes, taps, tubes, valves, gauges, or feedwater connections in drums of water tube boilers, using hand tools.
  • Install refractory bricks or other heat-resistant materials in fireboxes of pressure vessels.
  • Lay out plate, sheet steel, or other heavy metal and locate and mark bending and cutting lines, using protractors, compasses, and drawing instruments or templates.
  • Locate and mark reference points for columns or plates on boiler foundations, following blueprints and using straightedges, squares, transits, or measuring instruments.
  • Position, align, and secure structural parts or related assemblies to boiler frames, tanks, or vats of pressure vessels, following blueprints.
  • Repair or replace defective pressure vessel parts, such as safety valves or regulators, using torches, jacks, caulking hammers, power saws, threading dies, welding equipment, or metalworking machinery.
  • Shape or fabricate parts, such as stacks, uptakes, or chutes, to adapt pressure vessels, heat exchangers, or piping to premises, using heavy-metalworking machines such as brakes, rolls, or drill presses.
  • Shape seams, joints, or irregular edges of pressure vessel sections or structural parts to attain specified fit of parts, using cutting torches, hammers, files, or metalworking machines.
  • Straighten or reshape bent pressure vessel plates or structure parts, using hammers, jacks, or torches.
  • Study blueprints to determine locations, relationships, or dimensions of parts.

Detailed Work Activities

  • Assemble products or production equipment.
  • Clean equipment or facilities.
  • Fabricate parts or components.
  • Inspect industrial or commercial equipment to ensure proper operation.
  • Install gauges or controls.
  • Install masonry materials.
  • Install metal structural components.
  • Maintain mechanical equipment.
  • Mark reference points on construction materials.
  • Measure materials or objects for installation or assembly.
  • Operate cranes, hoists, or other moving or lifting equipment.
  • Position structural components.
  • Review blueprints or specifications to determine work requirements.
  • Signal equipment operators to indicate proper equipment positioning.
  • Weld metal components.

Military Crosswalk Titles

  • Advanced Utilitiesman (Navy - Enlisted)
  • Boiler Repairer Technician (Navy - Enlisted)
  • Cannon Crewmember (Army - Enlisted)
  • Cavalry Scout (Army - Enlisted)
  • Combat Engineer (Army - Enlisted)
  • Electronic Automatic Boiler Controls Maintenance Technician (Navy - Enlisted)
  • Machinery Technician (Coast Guard - Enlisted)
  • Machinist's Mate (Navy - Enlisted)
  • Marine Safety Specialist Engineer (Coast Guard - Warrant Officer only)
  • Naval Engineering Specialty (Coast Guard - Warrant Officer only)
  • Steam Plant Auxiliary Systems Manager (Navy - Enlisted)
  • Unit Supply Specialist (Army - Enlisted)
  • Utilitiesman (Navy - Enlisted)
  • Utilitiesman - Boilerman (Coast Guard - Enlisted)
  • Wheeled Vehicle Mechanic (Army - Enlisted)

Apprenticeship Crosswalk Titles

  • Boilerhouse Mechanic
  • Boilermaker Fitter
  • Boilermaker I
  • Boilermaker Ii

DOT Crosswalk Titles

  • Boilerhouse Mechanic
  • Boilermaker Apprentice
  • Boilermaker Fitter
  • Boilermaker I
  • Boilermaker II