Evolve by TCR, the training arm of TCR Advanced Engineering, is running a complimentary sixty-minute technical webinar on reformer tube fitness for service on 25 September 2026, and a two-day intensive programme in Vadodara on 29 and 30 October 2026. Both are led by working failure analysis and remaining life assessment engineers, not trainers.
- Complimentary webinar. 25 September 2026, Friday, 15:30 to 16:30 IST. Online. No fee.
- Two-day intensive programme. 29 and 30 October 2026, Thursday and Friday, at Evolve by TCR, 215 Pancham Icon, Vasna Road, Vadodara 390007. Certificate of participation.
- Subject. Reformer tube fitness for service and life extension through inspection-based approaches.
- Faculty. Paresh Haribhakti, Nikhil Sabhaya and Ketan Upadhyaya.
Register Now for the complimentary webinar
The gap the webinar addresses is interpretation, not measurement
A steam methane reformer is one of the few assets in a process plant where the operator can measure the damage directly and still get the decision wrong. The radiant tubes are accessible from the firebox during a shutdown, they can be profiled, scanned and replicated, and a modern inspection campaign returns several hundred numbers per tube. What the campaign does not return, by itself, is a retirement date.
That translation step is where reformer tube integrity is actually decided, and it is what both the webinar and the two-day programme are built around. TCR has run more than 100 reformer tube inspection campaigns and scanned over 50,000 tubes cumulatively through its ARTiS practice, and the recurring finding is not that plants under-inspect. It is that inspection output is read as a condition report when it is evidence for an engineering assessment.
Four damage mechanisms, running at different rates, in the same tube wall
Reformer tubes are centrifugally cast austenitic heat-resistant alloys, typically HP grades microalloyed with niobium, running at tube metal temperatures in the region of 850 to 1,000 degrees Celsius under internal pressure. Four things happen to that wall at once, and they do not progress at the same rate or respond to the same inspection method.
Creep cavitation. Voids nucleate at grain boundaries and on the interdendritic carbide network, link into microcracks, and finally into macrocracks. This is the mechanism that ends the tube, and for most of its life it is invisible to any method that measures the outside of the tube.
Carburisation. Process-side carbon ingress converts the inner wall, changing its structure, raising its hardness, embrittling it and, importantly for inspection, changing it from non-magnetic to weakly magnetic. That magnetic transition is measurable, and it is one of the reasons a magnetic method can say something useful about a nominally austenitic tube.
External oxidation and scaling. Section loss from the fired side, straightforward to measure and easy to over-weight, because it rarely governs.
Thermal ageing of the microstructure. Primary carbides coarsen, secondary carbides precipitate and then themselves coarsen, and the alloy's creep strength falls away from its as-cast value. Two tubes with identical wall thickness and identical diametral growth can sit a long way apart on remaining life because their microstructures have aged differently, and the only way to see that is to look at the microstructure, by in-situ metallographic replication or on a removed sample.
Why diametral growth on its own is not a retirement criterion
Creep strain shows up as an increase in tube outer diameter, so diametral growth is the most widely used field indicator of reformer tube condition, and a growth threshold in the region of three to five per cent is a common rule of thumb for removal. It is a useful screening number. It is a poor decision criterion, for a structural reason.
Creep strain accumulates slowly through the secondary stage and then accelerates in the tertiary stage. A tube reading two per cent growth may be years from tertiary creep, or months, depending on how hot it has actually run and how far its microstructure has aged. The measurement is real; the extrapolation from it is not, unless it is anchored to something that carries the temperature and the metallurgical history.
That is the argument for an inspection-based fitness-for-service route rather than a threshold: the same set of measurements, read against the tube's own service history, its effective metal temperature and its microstructural state, produces a defensible remaining life instead of a pass or fail. API 579-1 / ASME FFS-1 Part 10 is the framework for the creep assessment, and a Level 3 assessment is what turns a scan into a date.
From inspection finding to engineering decision
The chain the programme teaches runs in one direction and each link constrains the next.
| Step | What it produces | What it cannot do alone |
|---|---|---|
| NDT and dimensional survey | Wall thickness, diametral growth, bowing, attenuation and velocity data per tube | Distinguish creep cavitation from carburisation, or date either |
| Metallurgical evaluation | Cavitation class, carbide condition, carburised depth, degree of ageing | Establish the stress the tube is carrying |
| Service history reconstruction | Effective tube metal temperature, hours at temperature, upset excursions | Say what the wall looks like now |
| Fitness-for-service assessment | Remaining creep life, a re-inspection interval, a retirement date per tube | Be produced from any one of the three above |
Skipping any row does not make the assessment faster. It makes it an opinion. This is the same discipline TCR applies across plant life extension work and, on the power side, in the 1,500-plus boiler tube failure investigations consolidated into its knowledge-based audit practice.
What the complimentary webinar covers
Sixty minutes, on 25 September 2026, framed around the transition from inspection findings to engineering decisions:
- Interpretation of degradation and damage manifestations in reformer tubes
- Correlation of inspection and NDT findings with material degradation and service history
- Engineering assessment of tube condition and remaining service capability
- Fitness-for-service considerations for continued operation
- The technical basis for life extension, replacement and safe retirement decisions
- Lessons emerging from industrial failure investigations and field experience
Register Now for the complimentary webinar
The two-day intensive programme, 29 and 30 October 2026
The webinar is the overview. The two-day programme in Vadodara is the working version of it: metallurgy, damage mechanisms, inspection and NDT, failure analysis, remaining service life evaluation, fitness-for-service and life-extension strategy, taught against industrial case studies.
Course content
- Metallurgical principles and properties of the heat-resistant steels used in reformer tubes
- Key design and operating factors affecting tube performance
- Common damage mechanisms under high-temperature service conditions
- Material changes during long-term high-temperature exposure
- Methods to evaluate the remaining service life of tubes
- Indicators for the safe retirement of reformer tubes
- NDT methods for inspection and defect detection
- Systematic failure analysis approaches through practical industrial case studies
Who should attend
- Maintenance, inspection and process engineers
- Plant engineers, managers and middle-level engineers
- QA, QC and reliability engineers
- Metallurgical and materials engineers
- HAZOP engineers and safety professionals
- Technical, laboratory and sales personnel in metal-related industries
- Professionals from allied engineering disciplines working with metals
The programme runs for two full days, with interactive sessions and case work, and carries a certificate of participation. Seats are limited by room. Fees, group discounts for three or more nominations from one organisation, and payment instructions are issued with the nomination confirmation: write to evolve@evolvetcr.com or call +91 75748 34848.
The faculty
| Faculty | Background | What they bring to the programme |
|---|---|---|
| Paresh Haribhakti, Managing Director, TCR Advanced Engineering | Post-graduate in Materials Technology, M. S. University. Author of Failure Investigation of Boiler Tubes: A Comprehensive Approach, ASM International. More than 10,000 root-cause investigations led and supervised | High-temperature damage mechanisms, failure mitigation, risk management across refining, petrochemicals, power and fertilisers |
| Nikhil Sabhaya | Post-graduate in Metallurgy. ASNT Level III in ET, UT, PT and MT; API 510 Pressure Vessel Inspector; CSWIP 3.1 Certified Welding Inspector | Tube inspection, defect characterisation and NDT procedure validation for life assessment |
| Ketan Upadhyaya | BE Metallurgical Engineering, PGD Computer Science. Level II Acoustic Emission (IISc Bangalore), Vibration Analyst VT-II, ultrasonic flaw detection | Engineering critical analysis, high-temperature degradation, RLA and fitness-for-service evaluation, SEM and microstructure interpretation |
"Every reformer tube inspection produces numbers. Very few produce a decision. The engineer who can read a cavitation class against an effective metal temperature and a service history is the one who can tell an operator which tubes come out at this shutdown and which are safe for another campaign, and that judgement is what this programme is for."
The programme brochure
How the two sessions fit together
Attend the webinar for a focused overview of the subject at no cost. Read the brochure and consider the two-day programme where the work is closer to your plant: an assessment you have to sign, a tube population you have to rank, or an inspection scope you have to defend to a licensor. The path runs from technical awareness to practical engineering application, and it is deliberate.
For reformer tube inspection and assessment work rather than training, the ARTiS practice covers tube outer diameters from 105 mm to 190 mm and delivers a Level 3 assessment to API 579-1 / ASME FFS-1 Part 10 with a retirement date per tube. TCR's wider asset integrity work carries a group archive of more than 9,000 documented failure investigations, and its fertiliser and refining and petrochemical practices are where most of the reformer work sits.
Register Now for the complimentary webinar
Frequently asked questions
When is the complimentary reformer tube webinar and how do I register?
The webinar runs on Friday 25 September 2026 from 15:30 to 16:30 IST, online, at no cost. Registration is through the Zoom registration link on this page. Evolve by TCR confirms the joining details to the registered address once the form is submitted.
What is the difference between the webinar and the two-day training programme?
The webinar is a sixty-minute overview of how reformer tube inspection findings become engineering decisions. The two-day intensive programme on 29 and 30 October 2026 in Vadodara covers the same ground in working depth, adding metallurgy, NDT technique, failure analysis method, remaining life evaluation and industrial case studies, with a certificate of participation.
Who should attend the reformer tube fitness-for-service training programme?
Maintenance, inspection and process engineers, plant engineers and managers, QA and QC and reliability engineers, metallurgical and materials engineers, HAZOP engineers and safety professionals, and technical and laboratory personnel in metal-related industries. The material assumes working familiarity with plant equipment rather than a metallurgy degree.
Why is diametral growth alone not enough to retire a reformer tube?
Diametral growth measures accumulated creep strain but not the rate at which the tube will accumulate more. Creep accelerates in the tertiary stage, and how close a tube is to that stage depends on its effective metal temperature and how far its microstructure has aged. Growth is a screening indicator; the retirement decision needs a fitness-for-service assessment.
What standard governs the fitness-for-service assessment of reformer tubes?
API 579-1 / ASME FFS-1 Part 10 covers the assessment of creep damage. A Level 3 assessment combines the inspection data, the reconstructed service history and the metallurgical condition of the tube to give a remaining creep life, a re-inspection interval and a retirement date for each tube.
What are the fees for the two-day programme?
Fees, the group discount for three or more nominations from one organisation, and payment instructions are issued with the nomination confirmation. Write to evolve@evolvetcr.com or call +91 75748 34848.