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BechtFFS Software Package

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BechtFFS is an API 579-1/ASME FFS-1 compliant, web-based software application designed to assist operators/owners in evaluating equipment items which have developed defects in service. The quantitative calculations performed in BechtFFS assess the structural integrity of the flawed component and ultimately provide a recommendation whether the component should be taken out of service and retired or repaired, or is fit for continued service.

  • Immediate access from any internet-enabled device
  • Developed by leading industry FFS experts
  • User-friendly format with online Help Manual & Video Training
  • Free 30-Day Trial

Check it out on our website BechtFFS.com


ffsmainpicBecht Engineering has extensive experience and expertise in the field of Fitness-For-Service. We have performed evaluations for all of the damage mechanisms covered in ASME FFS-1/API 579 for clients around the world. We have performed Fitness-For-Service evaluations on piping, pressure vessels, heat exchangers and tanks. Our wealth of knowledge and experience enables us to provide authoritative, practical, knowledge based answers, and to solve your problems. We have performed fitness for service assessments on more than 2,000 pressure vessels.

We are organized to quickly and efficiently handle all levels of Fitness-For-Service assessments including rapid response to emergency situations where quick assessments are required to keep a plant running or when damage is found as part of discovery during turnarounds, and rapid assessments are necessary to determine the path forward. For immediate response, contact our FFS coordinator, Magnus Gustafsson at 571-550-0722 or click on the urgent request button on this page. The request will go to Mr. Gustafsson, as well as our President, Dr. Charles Becht and General Manager, John Basil.

Our knowledge comes from active participation in the new construction codes for equipment such as pressure vessels and piping as well as post construction standards. Magnus Gustafsson is a member, Gerrit Buchheim has been a member since inception and is taskgroup chair for Part 7 Hydrogen Blistering/HIC/SOHIC, Jim McLaughlin is a contributing member, Bob Sims is a member and the past vice-chair and George Antaki is past vice-chair of ASME FFS-1/API 579. Dr. Charles Becht IV is the founder and immediate past-chair of ASME PCC-2: Repair of Pressure Equipment and Piping and member and past chair of the ASME Post Construction Committee. When required, we design the repairs to restore the equipment integrity.


Request Info on Fitness for Service

Failure Analysis

In some occasions, damage is not detected prior to failure.  In these cases, plant operations involve us to assist them in determining the root cause of the failure.  We apply the same approach used in Fitness-For-Service.  In failure analysis, we form up teams including the relevant discipline specialists, including mechanical, materials and equiprment specific experts such as rotating and fired equipment experts.  Our findings and recommendations are used to prevent failures in other equipment.

Request Info on Failure Analysis

Brittle Fracture

Becht has performed brittle fracture assessments of over 2,000 pressure vessels in various ethylene plants.  These vessels had not been designed for the low temperatures that could occur as a result of autorefrigeration.  Most of these assessments were based on API 579, Level 2 methods, and were performed very rapidly using a custom computer tool Becht Engineering developed to expedite the assessments. 

Detailed Level 3 fracture mechanics assessments were also performed for a number of vessels.  The detailed fracture mechanics assessments performed to evaluate potential for brittle fracture in vessels subject to colder operation, as well as those with existing cracks to be evaluated.  The fracture mechanics assessment performed in the design of Section VIII, Div 3 vessels for fatigue are performed with Becht's custom fracture mechanics analysis tool which is designed to be able to simultaneously consider multiple loading conditions...

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Code Expertise

Becht holds or has held over 125 positions in ASME, API and ASTM Codes and Standards Committees, and has chaired many of them. Updated June, 2018.


  • ASME Past President
  • Board of Governors - Former Members
  • Board on New Development - Former Chair
  • Board on Hearings and Appeals - Former Chair
  • Board on Nuclear Codes and Standards - Former Member, Former Chair
  • Board on Pressure Technology Codes and Standards – Current Member, Former Chair, Vice-Chair & Members
  • Board on International Standards (Inactive Committee) - Former Member
  • Board on Council Operations - Former Chairs
  • Council on Standards and Certification - Former Chairs & Sr. VP's and Member


  • Post Construction Standards Committee – Current Chair, Former Chairs & Vice-Chairs
  • Post Construction Executive Committee - Current Members, Former Chairs & Vice-Chairs
  • Subcommittee on Repair and Testing - Founding Chair, Current Member, Former Chair & Members
  • Subcommittee on Inspection Planning - Current Contributing Member
  • Subcommittee on Flange Joint Assembly – Founding Chair, Current Contributing Member, Former Chair
  • Subcommittee on Flaw Evaluation - Former Member


  • B31, Code for Pressure Piping, Standards Committee - Current Members, Former Chair
  • B31, Code for Pressure Piping, Executive Committee - Current & Former Members
  • B31, Code for Pressure Piping, Mechanical Design Committee - Current Vice-Chair & Member, Former Vice-Chair
  • B31, Code for Pressure Piping, Materials Technical Committee – Current Chair
  • B31.1 Power Piping Section Committee – Current Member
  • B31.3, Process Piping Section Committee - Current Members, Former Chairs
  • B31.12 Hydrogen Piping and Pipelines Section Committee - Current Members
  • B31.1 Subgroup on Materials – Current Member
  • B31.3 Subgroup on High Pressure Piping - Former Chair
  • B31.3 Subgroup on Design - Current & Former Members
  • B16 Standardization of Valves, Flanges, Fittings, Gaskets Standards Committee - Current Member
  • B16 Subcommittee C - Steel Flanges and Flanged Fittings - Current Member, Former Chair
  • B16 Subcommittees on fittings, gaskets, copper components and valves - Current Member


  • Committee on Pressure Vessels (BPV VIII) - Current Chair & Members, Former Members
  • Subgroup on Design (BPV VIII) - Current Members, Former Chair & Members
  • Subgroup on General Requirements (BPV VIII) - Current Member, Former Chair
  • Subgroup on High Pressure Vessels (Section VIII, Div 3) - Current Member, Former Chair
  • Subgroup on Heat Transfer Equipment (BPV VIII) - Current Member, Former Chair
  • Subgroup on Toughness (BPV II & VIII) - Current Member
  • Special Committee on Interpretations (BPV-VIII) - Current Member
  • Task Group on Impulsively Loaded Vessels (BPV VIII) - Current Member
  • Working Group on Design-By-Analysis (BPV VIII) - Current Members
  • Subgroup on External Pressure (BPV II) - Current Vice-Chair
  • Technical Oversight Management Committee (former Main Committee) - Current & Former Members
  • Committee on Transport Tanks (BPV XII) - Former Member
  • Committee on Construction of Nuclear Facility Components (BPV III) – Current Member & Former Vice-Chair
  • Standards Committee on Qualification of Mechanical Equipment (BPV III) - Former Member
  • Subgroup on General Requirements (BPV III) - Current & Former Members
  • Subcommittee on Design (III) – Current Member, Former Member & Chair
  • Subgroup on Component Design (III) - Current Member & Contributing Member, Former Member, Former Chair
  • Subgroup on Elevated Temperature Design (BPV III) - Current Member, Former Chair
  • Working Group on Piping (BPV III) - Current Chair, Former Chairs, Vice-Chair & Members
  • Operation and Maintenance of Nuclear Power Plants – Subcommittee on Piping (BPV III) - Current Member
  • Task Group Buried Components Inspection and Testing (BPV (XI) - Former Member
  • Working Group on Supports (BPV III) – Current Member and Former Chair & Member
  • Executive Committee on Strategy and Project Management (BPV III) - Former Chair
  • Special Working Group on Editing and Review (BPV III) – Current Member
  • Project Team on Hydrogen Tanks - Current Member
  • Special Committee on Interpretations (BPV III) - Former Chair
  • Special Working Group on High Density Polyethylene Piping (SC III) - Current Member
  • Subcommittee on Accreditation - Former Member-Alternate


  • Subcommittee VIII, Pressure Vessels (Inactive Committee) - Former Vice-Chair & Members
  • Design and Analysis Committee (Inactive Committee) - Former Chairs & Members
  • Subgroup on Design Analysis (BPV III & VIII) (Inactive Committee) - Former Chairs & Members
  • Special Working Group on High Pressure Vessels, Section VIII, Div 3 (Inactive Committee) - Former Chair
  • Subcommittee on Design - (Inactive Committee) - Former Members
  • Subgroup on Design SC-VIII (Inactive Committee) - Former Chair & Members
  • Subgroup on Design/Analysis (SC-D) (Inactive Committee) - Former Chair & Members


  • ASME/API Joint Fitness-for-Service Committee (API 579/ASME FFS-1) - Current Members, Former Vice-Chairs & other Members
    • Chair of Part 7 Hydrogen Blistering


  • Subcommittee on Corrosion and Materials – Current Members
    • Task Group on API 941 High Temperature Hydrogen Attack – Current Members and technical editor for API 941 TBD
      revision 1
    • Task Group on API 939-C Sulfidation - Author and Current Vice Chairman
    • Task Group on API 945 Amine Cracking – Current Chairman
    • Task Group on API 970 CCD/IOW - Current Members and Vice Chairman
    • Task Group on API 584 IOW’s- Member
    • Task Group on API 571 Refining Damage Mechanisms – Current Chair and Former Chair
    • Task Group on API 934 Heavy Wall Vessels - Members
      • Part F) Development of a Guidance Document for Establishing Minimum Pressurization Temperatures for Heavy Wall Reactors in Hydrogen Service – Technical Editor and Current Member
      • Part G) Coking Drums in Delayed Coking Units – Technical Editor and Member
      • Parts H& I Hydrotreater reactors (Maintenance and inspection) – Technical Editor and Current Member
    • Task Group on API 580/581 RBI Member
  • Subcommittee on Piping - Former Vice-Chair
  • Taskgroup on Refractory – Former Chair
  • Subcommittee on Above Ground Storage Tanks - Former Member
  • Subcommittee on Heat Transfer Equipment - Former Chair
    • Task Group on Shell & Tube Heat Exchangers - Former Member
  • Task Group on Air Cooled Heat Exchangers - Former Member
  • API Committee on Refining Equipment – Former Chair


  • ASCE Dynamic Analysis of Nuclear Structures (DANS) Committee - Vice Chair
  • Working Group on Revision of ASCE Standard 4 Seismic Analysis of Safety-Related Nuclear Structures - Voting Member
  • Working Group on Revision of ASCE Standard 43, Seismic Design Criteria for Structures, Systems, and Components in Nuclear Facilities – Voting Member


  • MTI - Board of Directors - Current Member
  • MTI – Knowledge Management Project Development Committee - Current Chair
  • MTI – Project on the High Temperature Behavior of Weld Joints in Cast 20Cr-32Ni-Nb Alloys – Co-Champion
  • NACE STG 34 Refining Corrosion – Current Members
    • SP-0296 Wet H2S Cracking Inspection - Vice Chair
    • Publication 34103 Sulfidation Corrosion – Vice Chair
    • TG 510: Joint API/NACE Advisory Committee – API 751 Safe Operation of HF Alkylation Units – Corrosion and Materials Selection – Current Member
    • NACE TG 358: Hydrofluoric Acid and Hydrogen Fluoride: Review of NACE Publication 5A171 - Member
  • AWS A5 (Filler Metals) Committee - Source for ASME IIC - Current Member
  • ASTM F-17, Plastic Piping Systems Main Committee - Current Member
  • ASTM Standards and Certification Board of Directors - Current Member, Former Chair
  • ASTM Committees CO3, C-16, and D-20.23 - Current Member
  • ISA – The International Society for Measurement & Control, member of SP 93, Sealing Technologies Committee - Former Member
  • Materials Technology Institute’s Technical Advisory Council Committee - Current Member
  • Materials Technology Institute, Evaluation of Gaskets Committee - Current Member
  • US TAG for ISO/TC 153/SC 1 – Valve Design, Manufacturing, Marking and Testing - Current Member
  • US TAG for ISO/TC 5/SC 10 – Metallic Flanges and Their Joints - Current Member
  • US TAG for ISO TC 197 – Hydrogen Technologies - Current Member
  • US TAG for ISO TC 11 - Boilers and Pressure Vessels - Current Member
  • Joint ASME – IEEE Seismic Qualification Committee - Former Chair
  • ASME – ASCE Joint Task Group on Buried Piping - Founding & Current Chair
  • Process/Industry Practices (PIP): Coatings and Insulation - Former Function Team Leader
  • Process Industry Practices (PIP): Piping - Former Member
  • Society for Protective Coatings (SSPC): Standards Review Committee - Former Member
  • US DOE Hydrogen Safety Panel - Current Member
  • The Materials Properties Council - Former Member
  • Section III, SG on General Requirements - Current Member
  • Section III, SWG on Polyethylene Pipe (Inactive Committee) - Former Member
  • Section III, Working Group on Piping Design (Inactive Committee) - Former Member
  • PVRC Committee on Continuing Operation of Equipment - Former Chair
  • ASME Hydrogen Steering Committee (Inactive Committee) - Former Chair
  • ASME High Pressure Systems Committee - Former Vice-Chair & Member
  • ASME Task Group on Risk Analysis for the Critical Assets Protection Initiative - Former Chair & Member
  • ASME BPTCS Ad Hoc Task Group on Incorporation of Risk Based Principles into Pressure Technology Codes and Standards (Inactive) – Former Chair & Member
  • ASME BPTCS Task Group on Risk-Based Design and Inspection – Current Member
  • PVP Design and Analysis Committee - Current Members, Former Chair
  • PVP Division Leadership Team - Current Member
  • Working Group Duties and Responsibilities (SGGR-BPVIII) - Current Member
  • QAI-1 Qualification for Authorized Inspection - Former Chair
  • Subcommittee on Accreditation of Authorized Inspection Agencies - Current Member-Alternate
  • National Commission for the Certification of Crane Operators (NCCCO) - Vice President, Board of Directors
  • AISC TC 11 Nuclear Facilities Design - Member

Correcting Leaking Flanges

Bolted flange joints can be extremely complicated parts of pressure equipment.  Leaking flanges can have personnel health and safety, environmental, fire, and loss of production implications.  We have extensive experience and expertise in solving leaking flange problems.  One of our experts, Clyde Neely, is the founding chair of ASME PCC-1: Guidelines for Pressure Boundary Bolted Flange Joint Assembly.  Often, leaking flanges can be solved by applying well-tested techniques from our wealth of experience.  Other times, analysis (including finite element analysis) is needed to both pinpoint the cause of the leakage and simulate the proposed solution.  Our track record of solving leaking flanges is the envy of the industry.

Evaluation of In-Service Damage

We are frequently called in to evaluate damage (cracks, corrosion, blisters, etc) on equipment that remains in-service.  We have been able to quickly perform the Fitness-For-Service assessments to assist the plant operations in determining if the equipment remains safe to operate.  We work with plant operations to evaluate further deterioration mechanisms to determine the optimal time to perform repairs.  Often the damage is found in routine inspections between turn-arounds.  If the equipment can be safely operated until the next planned outage, we will recommend that and work with plant operations for further in-service inspection/monitoring.

Finite Element Analysis - Mechanical/Thermal/Fatigue

Becht Engineering has developed a reputation as one of the premier providers of Design-By-Analysis services.  We have a deep reservoir of staff that perfrom finite element analysis using commercial programs such as ABAQUS, ANSYS, SolidWorks and products of Paulin Research Group.  Types of analysis include linear and nonlinear analysis, stress, heat transfer and dynamics including seismic. Given the many analytical tools available, we are able to choose the most efficient and cost-effective tool for the task at hand; for example, we frequently use non-linear analysis to develop more efficient equipment designs and/or to demonstrate that existing equipment is fit for service. Our extensive code expertise enables us to provide authoritative interpretations of the analysis results. Our experts include such frequently published engineers as Greg Hollinger, Trevor Seipp, and Dr. Charles Becht.

Becht FFS Form

FFS button onForm

We are organized to quickly and efficiently handle all levels of Fitness-For-Service assessments including rapid response to emergency situations where quick assessments are required to keep a plant running or when damage is found.

For immediate response, contact our FFS coordinator, Magnus Gustafsson (click to email / phone at 571-550-0722) or complete the form. Your form request will go to Mr. Gustafsson, as well as our President, Chuck Becht and Business Development Manager, John Basil.

A quick response is guaranteed!