• January 20, 2022
    9:00 am - 3:30 pm
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Bill Amend  with DNV present “Introduction to Pipeline Steels: Metallurgy, Manufacturing, Standards, and Specifications” as a webinar on January 20, 2022

This course has the minimum required to be held and is continuing to accept registrations.

 Maybe you think that as long as the pipe meets API 5L, that is good enough, and no further understanding is needed. Maybe you think an understanding of metallurgy is just for the materials engineers. Maybe you already know that a low carbon equivalent is preferred for welding; therefore, a very low carbon equivalent is always best, right? Maybe you think stress relief considerations for a quenched and tempered fitting can be the same as for a normalized fitting.  Maybe you “know” that seamless pipe is preferred for compressor and pump station applications because that way, there is no seam to fail from fatigue.  Maybe you “know” that X70 is more difficult to weld than X52 because it is harder and stronger.  Maybe you “know” that Lab “A” is wrong because their tensile test results are different from those of Lab “B”.    Or maybe you want some clarification of the difference between hardness, toughness, and ductility and want a better understanding of how they are measured and how they are influenced by steel manufacturing.  And, what is the big deal with “hard spots” or LF ERW?

What is the origin of the emphasis on pre-1970 ERW and is that emphasis defensible?  If UT inspection shows that a lap seam has acceptable workmanship, does it mean it is not significantly flawed? If you do testing on a couple of randomly selected pipe joints, will the results be representative of the entire pipeline segment?  Join us and find out.

This webinar will introduce attendees to the topic of pipeline metallurgy and how manufacturing, standards, and specifications influence pipeline mechanical properties, weldability, and long-term integrity.  The webinar starts with a description of how pipelines fail since the failure modes influence what metallurgical measures are taken to minimize susceptibility to those failures.  The major types of pipe and fitting manufacturing processes, and common flaws associated with them will be reviewed, including discussion of obsolete types of pipe that are still in service, including pipes with lap seams, furnace butt weld seams, and flash weld seams.

The review will include a brief summary of some historical practices that influence current pipeline characteristics.  Attendees will learn the significance of yield strength, ultimate tensile strength, hardness, toughness and composition and how those attributes are specified and measured, including how test procedures can influence results.  Attendees will also be introduced to the topic of pipeline welding since welding can have a significant impact on pipe properties and susceptibility to various forms of in-service degradation.



A 30-minute lunch break at 11:30 a.m. CDT


Course Notes
Certificate of completion awarding 6 PDHs

Course Outline

  1. What Characteristics are Important in Pipeline Steel and How are They Measured?
    1. Strength (YS and UTS)
    2. Toughness (static and dynamic testing)
    3. Weldability
  2. How is Pipeline Steel Made?
    1. Influence of composition
    2. Ingot casting v. continuous casting
    3. Influence of processing (example: rolling and forming, heat treatment, cold expansion)
  3. How was Pipe Made in the Past and How is Pipe Made Now?
    1. Seamless pipe
    2. Seamed pipe
    3. Typical flaws and vulnerabilities
  4. What Happens When We Weld Pipeline Steel?
    1. Weld metal/welding process selection
    2. Changes in the heat affected zone: strength, toughness, corrosion susceptibility
  5. What Codes and Standards Address Pipeline Steel and Pipe/Fitting Manufacturing?
  6. How have Manufacturing and Fabrication Practices Changed Over Time and What Does That Mean for Pipeline Integrity?


This Webinar Rated 5 Stars Out Of 5 By Attendees!

“It is clear that Bill has been involved with the subject material for his entire career.  He simply has to be one of the best presenters on the topic.”
“Very nice course. Exceeded my expectations. I’ll be back for another offering, I’m sure!
“Wealth of knowledge and experience. Excellent presenter.”
“Well-spoken and easy to understand.”
“Excellent Presentation!”
“Pitched consistently at  the correct level.”
“The instructor was well versed in the topic, able to answer questions from the audience, and has excellent presentation skills.”
“Instructor was good, very knowledgeable.”

“This was a great presentation. A lot of good material.”
“There was a lot of material presented in a relatively short period of time. the reference materials will come in handy.”

“Definitely worthwhile!”
“Obviously very knowledgeable of the material. Chronology of presented material was very appropriate. I was very pleased.”
“This is the best TT class I have attended to date.”
100% of respondents would recommend this training to a colleague within or outside of their company.


Bill Amend, P.E
Principal Engineer, DNV 
Pipeline Integrity, Metallurgical Engineering, Materials Selection, Welding Engineer

Bill Amend has 41 years of experience performing pipeline integrity management, failure analysis, metallurgical engineering, and welding engineering services. His background includes 26 years working for pipeline operators (Unocal and Southern California Gas Co.)  before working for engineering services providers. He is currently Senior Engineer at DNV . He is a co-author of the ASME report CRTD Vol. 91 regarding field measurement of hardness to determine the lower bound yield strength of pipe and has managed and conducted various research projects for ASME, DNV GL, NYSEARCH and PRCI addressing the continued development and validation of methods for nondestructive determination of pipe properties, chemical analysis of steel, tensile testing, and characteristics of early vintage pipeline girth welds.  He is a registered professional Metallurgical Engineer in California and graduated from California Polytechnic State University in San Luis Obispo (Cal Poly SLO).

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