American BOA Expansion JointsAmerican BOA Expansion Joint

American BOA Expansion Joints was recently acquired. Don’t hesitate to contact Dannenbaum LLC for more information or a quote.

Design, manufacture, and market products where flexibility, thermal growth, or vibration are the first concern. For instance, this includes flexible metal hoses, cryogenic & vacuum connectors, engine exhaust bellows, metal expansion joints, automotive decoupling joints, instrument bellow, and specialized fabrications.


The company was incorporated in 1956 and commenced operations in NY and New Jersey. The corporate relocated and consolidated operations in 1981 in Cumming, GA. American BOA may be a subsidiary of BOA Metal Solutions Gmb. The BOA group consists of 20 subsidiaries and other significant shareholdings across the planet.

Markets Served

American BOA market is anything involving piping and changes in temperature. For instance, Automotive, Power Generation, Cryogenics/Industrial Gases, Solar, Engine Manufacturers, OEMs, Steel Mills/Metals, Vacuum Technology, Chemical/Petrochemical, Water/Waste Water, and lots more.

Furthermore, American BOA focuses on the engineering and production of technology, thin wall flexible metal components, and automotive and industrial applications systems.

Also, we are a part of the Flexible Solutions Group of IWKAIWKA may be a leading systems supplier in machine and plant construction, comprising 90 medium-sized companies making up four divisions: Production Technology, Manufacturing Technology, Process Technology, and Packaging Technology. IWKA companies are global partners for the automotive industry, the buyer goods industry, the energy industry, and other major industries.

The Flexible Solutions Group of IWKA may be a global group of companies within IWKA sharing expertise in engineering, quality, R & D, testing, process technology, and customer service to supply our customers with superior products, systems, and solutions to vibration, noise, thermal growth, and fluid transport problems.

American BOA

American BOA manufactures custom and standard hydroformed metal bellows and assemblies. Also, we provide over 50 years of experience in the design of single and multiply bellows in various materials and sizes from 3/8 inch diameter and up.

In addition, American BOA Expansion Joints offers:

  • Complete Lab Testing Facilities
  • Engineering & Design
  • Technical Supportive
  • Valves Shaft Seals Test
  • Measurement Equipment
  • Vacuum Couplings Volume
  • Compensation Pressure Switches
  • Electrical Switch Gear

American BOA has supplied top-quality metal bellows expansion joints to the industry for 50 years. The BOA name is recognized worldwide because of the leader in innovative technology solutions and highly reliable products. Further, American BOA expansion joints are utilized in suitable piping applications to catch up on thermal pipe expansion or contraction and soak up equipment vibration or pipe motions. Moreover, these products provide piping system flexibility under extreme operating conditions.

American BOA Pipeline Expansion Joints

Firstly American BOA manufactures single, multiply, and two-ply testable bellows in sizes from 3/8 inch to over 20 feet (6.1 m) in diameter using a precision forming technology. Next, bellows materials utilized include stainless steel, nickel-based alloys, titanium, aluminum, and many others for extreme pressure, temperature, and corrosive conditions.

Furthermore, American BOA’s expansion joint business concentrates on providing engineering excellence, responsive and timely deliverables, and dedication to customer success and satisfaction.

Quality Excellence Quality Programs

American BOA is committed to providing products and services that meet or exceed customer expectations and requirements. In addition, as a part of our commitment to quality, we’ve been certified to perform work under the subsequent Quality Standards:· ISO 9001 — International Standards Organization.

Certificate #98-693 · ASME Section VIII, Div. 1 — “U” Stamp Program and Stamp Certificate #25,594 · National Board of Pressure Vessel Inspectors — “R” program & Stamp Certificate #R-3619 · AS 9000, Aerospace Quality Program Certificate #2308A.

Welding procedures and procedure qualifications are performed per ASME Section IX and other codes. Non-Destructive Examination.

The following techniques are administered by ABI-certified personnel consistent with American BOA’s internal written practices and SNT-TC-1A within the appropriate levels (I, II, and III) as needed.

  • Dye Penetrant Examination Radiographic Examination
  • Magnetic Particle Examination
  • Visual Examination
  • Helium spectrometer Leak Testing
  • Pneumatic Leak Testing Hydraulic Leak Testing
  •  CWI Weld Inspection (Certified by American Welding Society)
  • 900-ton hydraulic test press
  • On-Site Radiography

In addition to the testing provided above, a contracted accredited metallurgical laboratory provides material failure analysis, corrosion failure analysis, and qualitative analysis.

American BOA Bellows Joints

Fabrication Technology

Also, bellows manufacturing comprises several operations and forming machines capable of creating bellows elements up to 240” ND. High precision seam welders are utilized to realize critical longitudinal element weld seams without filler metal. Further, the seams are designed to be within 10% of the parent metal thickness after welding to ensure that the fatigue life and bending stresses aren’t suffering from the welding operation. American BOA Large Diameter Punch Former (Bellows 66″ to 240”) Seam Welding Operation.

Moreover, we routinely perform these operations on the bellows materials home in thickness from 0.006” to 0.120″. Furthermore, materials vary from stainless steel to Hastelloy and Titanium. Additionally, to bellows forming, American BOA has the equipment necessary to manufacture the extra components required to fabricate expansion joints. As well as this includes plate rolls, expanders, burning tables, and an entire workshop.