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– **Application**
– Boilermakers work on power plants, repairing stress fractures, leaks, and corrosion.
– Repairing boilers can be a costly service, with even small boilers costing over $20,000 to replace.
– Some boilermakers work seasonally or on specific projects like refitting boilers in seagoing vessels.
– The trade involves fabricating and repairing large containers for hot gas or liquid.
– Boilermakers also remodel steam plants and other large vessels.

– **Domestic boilers in the United States of America**
– Boilermakers in the U.S. repair and re-tube steam and hot water boilers in commercial buildings.
– They are responsible for using gas torch sets and welding techniques to repair steel plates and tubes.
– These boilers are sometimes referred to as pressure vessels.
– Pressure vessels are designed to operate at pressures above 15psi.
– Boilermakers use oxy-acetylene gas torch sets and various welding techniques to mend sections of boilers.

– **Training and certification in the United States**
– Boilermakers typically undergo a four-year apprenticeship program.
– Apprenticeships include on-the-job training and classroom instruction.
– To become an apprentice, individuals need to be at least 18 years old and have a high school diploma or GED.
– Trade or technical school combined with employer training can expedite learning.
– Census data from 2012 shows that boilermakers are predominantly male in the U.S.

– **R Stamp Welding**
– Boiler repair in the U.S. is regulated by the National Board of Boiler and Pressure Vessel Inspectors and ASME.
– Boilermakers need to be tested and certified for R Stamp Welding.
– R stamps are issued to companies with ASME code stamps for construction.
– Welders mark their welds with identifying numbers using steel stencils.
– R Stamp Welding ensures the quality of weld joints in boiler repairs.

– **Power Piping**
– Boilermakers are also involved in welding, fitting, and installing tubes and accessories for boilers.
– Power Piping certification is governed by ASME Code section B31.1.
– Similar to R Stamp Welding, Power Piping certification ensures quality and safety standards are met.
– The same organizations oversee both R Stamp Welding and Power Piping.
– Boilermakers need to be certified to work on power piping systems.