ASME III - Nuclear Code Inspection Services

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ASME Nuclear Inspection Services

Engineer Inspecting a Nuclear Power Station

Hartford Steam Boiler (HSB) offers a wide range of inspection services for nuclear components and nuclear power plants. We are the world's largest Authorized Inspection Agency accredited by the American Society of Mechanical Engineers (ASME). HSB is widely recognized as an industry leader and pacesetter for ASME Authorized Inspection Agencies.

We help clients around the world anticipate the impact of ASME and National Board Inspection Code requirements on their operations. Our experienced inspection professionals will help you identify and eliminate flaws and defects that increase your liability and operating costs while helping you maintain the highest levels of pressure equipment integrity. We also provide the most extensive inspection coverage in the United States and many other countries around the world.

Client Industries

  • Manufacturers/Fabricators, New construction, Inservice Repairs/Replacements, Owners/Operators of Nuclear Power Plants

Services Provided

  • Authorized Nuclear Inspection Services
  • Authorized Nuclear Inservice Inspection Services
  • Spent Fuel Services (Inspection, surveillance and auditing services)


  • ASME Code Symbol-stamped nuclear components and nuclear power plants
  • Nuclear dry fuel storage casks

Client Benefits

  • Single Source Inspection Service – Hartford Steam Boiler can perform inspections to all of your pressure equipment requirements.

  • Global Coverage – Our engineers and inspectors around the world allow us to cost-effectively manage complex, multi-site inspections involving a variety of standards.

  • Local Presence – We have local representation in Europe, Asia and the Americas so you can strategize globally and act locally.

  • Responsiveness – HSB responds quickly to urgent situations that require accelerated project schedules and high levels of responsiveness.

  • Global Inspection Staff – HSB has more than 450 pressure equipment inspectors and supervisors. We have National Board nuclear and non-nuclear commissioned inspectors in Asia, Europe, the Middle East, North and South America.

  • Client Focus – HSB ensures that the delivered services meet clients’ needs and requirements. Services can include everything from incoming material approval to installation and testing.

  • Experience – HSB brings together our knowledge of the ASME Codes and Standards, quality program development and surveillance activity, and combines it with our unique understanding of many international codes, which helps you save time and money.

  • Support – Hartford Steam Boiler is approved to perform pressure equipment inspections to almost all international codes and standards and often assist clients with design reviews and product inspections for international use.

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