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Mastering EFW Piping: The Complete Guide to ASTM A671 & A672
Rating: 4.8 out of 5(6 ratings)
108 students

Mastering EFW Piping: The Complete Guide to ASTM A671 & A672

Deep dive into Electric-Fusion-Welded Pipe Standards, Heat Treatment, Grades, Classes, and Quality Control for Engineers
Created byAtul Singla
Last updated 11/2025
English
English [Auto],

What you'll learn

  • Distinguish Applications: Confidently select between ASTM A671 (Low Temperature) and A672 (Moderate Temperature) based on service conditions.
  • Decode Designations: Master the alphanumeric "Grade" and "Class" system (e.g., CC70 Class 22) to specify materials correctly.
  • Understand Heat Treatment: Learn the metallurgy behind Stress Relieving, Normalizing, and Quenching protocols required by the standards.
  • Navigate Quality Control: Comprehend the specific requirements for Radiography, Transverse Tension Tests, and Weld Bend Tests.
  • Manage Manufacturing: Understand the EFW welding process, plate selection, and permissible repair procedures for high-pressure pipe.

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Course content

1 section • 8 lectures • 50m total length

  • Quick Overview7:04

    Decode ASTM A671 and A672 for electric fusion welded pipe, highlighting service temperature, grade and class meanings, heat treatment ranges, and radiography plus hydrostatic testing.

  • ASTM A671 vs. ASTM A672: EFW Pipe Explained (Low vs. Moderate Temp)4:55

    Compare A671 and A672 for electric fusion welded steel pipe, where A671 covers atmospheric and lower temperatures and A672 is for high pressure service at moderate temperatures.

  • Understanding ASTM Grades & Classes: Decoding A671/A672 (CC70, Class 22)5:49

    Decode ASTM A671/A672 grades and classes to identify pipe material and the manufacturing history, and specify both to ensure the exact pipe your project demands.

  • EFW Pipe Manufacturing: Welding & Plate Selection (ASTM A671/A672)5:46

    Explain how ASTM A671 and A672 guide steel selection and electric fusion welding to produce double, full-penetration welds with smooth, reinforced beads for reliable high-pressure piping.

  • Heat Treatment of Steel Pipe: Stress Relief, Normalizing & Quenching8:04

    Explore how welding induces internal stress in large-diameter steel pipes and how ASTM A671/A672 heat-treatment classes guide stress relief, normalization, and quenching and tempering to meet job demands.

  • Quality Control: Radiography (RT) & Mechanical Testing for EFW Pipe6:41

    Explore how welds in EFW pipe meet ASTM A671 and A672 through mechanical tests, radiography, and hydrostatic pressure, with a two-digit class number indicating heat treatment and testing outcomes.

  • Pipe Defects, Repairs, and Supplementary Requirements (Charpy Impacts)5:24

    Explore supplementary requirements for A671 and A672 pipes, including S2 Sharpie impact testing for low temperatures, and understand factory repairs, base metal vs weld defects, and one-third wall thickness rule.

  • TEST YOUR KNOWLEDGE: ASTM A671/A672 Piping Engineering Quiz6:21

    Test your mastery of ASTM A671 and A672 through real-world scenarios, identifying the correct standard, class 22 requirements, weld and base metal considerations, and the essential section 4 ordering information.

Requirements

  • Basic understanding of mechanical engineering or piping terminology.
  • No specific code book is required (we will cover the essential tables and clauses), but having access to the standards is helpful.

Description

Are you a Piping Engineer, Quality Inspector, or Procurement Specialist struggling to navigate the complex specifications of Electric-Fusion-Welded (EFW) pipe?


“This course contains the use of artificial intelligence.”

Pipe ordered to the wrong specification or heat treatment class can lead to catastrophic failures in high-pressure lines. This course is designed to demystify ASTM A671 and ASTM A672, the two industry-standard specifications for EFW steel pipe used in atmospheric, lower, and moderate temperature services.

Through a structured 7-module curriculum, we break down the dense technical language of the code into clear, actionable knowledge.

Course Curriculum:

  • Module 1: The Fundamentals: We start by defining the scope. You will learn exactly when to apply A671 vs. A672.

  • Module 2: Cracking the Code: We decode the confusion between "Grades" (Material) and "Classes" (Processing).

  • Module 3: Manufacturing: A look at Pressure Vessel Quality plates, welding processes, and reinforcement rules.

  • Module 4: Heat Treatment: The core of the standard. We explain Stress Relief, Normalizing, and Quenching requirements.

  • Module 5: Inspection & Testing: Detailed walkthroughs of Radiography (RT), Hydrotests, and Mechanical testing.

  • Module 6: Repairs & Supplements: How to handle defects and when to order Supplementary Requirements (like Charpy Impacts).

  • Module 7: Scenario Quiz: Test your knowledge with real-world engineering scenarios.

Who is this course for?

  • Piping Engineers & Designers

  • QA/QC Inspectors & API Inspectors

  • Mechanical Engineers in Oil & Gas/Petrochemicals

  • Procurement Specialists handling PVQ materials

Enroll today to master the standards that ensure the safety and integrity of high-pressure piping systems.

Who this course is for:

  • Piping Engineers & Designers
  • QA/QC Inspectors & API Inspectors
  • Mechanical Engineers in Oil & Gas/Petrochemicals
  • Procurement Specialists handling PVQ materials

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