May 30, 2024  
2022-2023 College Catalog 
2022-2023 College Catalog [ARCHIVED CATALOG]

WLD 250 - Pipe Welding

4 Credits, 6 Contact Hours
2 lecture periods 4 lab periods

Principles and techniques of pipe welding. Includes introduction to pipe layout and drawing equipment. Also includes an introduction to performance testing, types of pipe, methods and preparation of pipe joints and miter joints, methods of joining pipe and miter joints.

Prerequisite(s): WLD 160  
Information: Prerequisite(s) may be waived with appropriate work experience. See a welding instructor or advisor for prerequisite information.
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Course Learning Outcomes
  1. Describe processes, standards and codes for performance testing.
  2. Describe types of pipe, pipe standards and codes.
  3. Explain the what, where, how, and why of pattern layout for pipe fabrication.
  4. Use drawing equipment required for pattern layout.
  5. Setup and draw connections for pipe.
  6. Cut and bevel pipe using the freehand and machine techniques.
  7. Demonstrate methods of joining pipe in vertical, horizontal and 45° fixed positions.
  8. Demonstrate coping and mitering procedures.
  9. Demonstrate fit-up, tacking and welding procedures.

  1. Introduction to Performance Testing
    1. Processes
    2. Standards and codes
    3. Organizations
    4. Classifications
      1. American Welding Society qualifications codes
      2. American Petroleum Institute qualification codes
      3. American Society of Mechanical Engineers qualification codes
  2. Types of Pipe
    1. Schedules of pipe
    2. Steel alloy pipe
    3. Pipe standards and codes
  3. Introduction to Pipe Layout
    1. What is pattern layout?
    2. Where is it used?
    3. How is it used?
    4. Why is it used?
  4. Drawing Equipment
    1. Drawing board
    2. T-Square
    3. Triangles
    4. Scale
    5. Dividers
    6. Compass
    7. Bow spacers
    8. Pencils
  5. Pipe to Pipe
    1. Miters
    2. Copes
  6. Methods and Preparation of Pipe Joints and Miter Joints
    1. Butt joint 
    2. Tee joint 90°
    3. Branch joint
    4. Bevel angles
    5. Set up of pipe test
  7. Methods of Joining Pipe and Miter Joints
    1. Layout
    2. Tacking procedures
    3. Welding procedures
    4. Selection of filler rods
    5. All positions
  8. Preparation of Pipe Test
    1. Bevel angle
    2. Set up of test plate for end test
    3. Set up of test plate for x-ray test
    4. Cutting test coupons for bend test
  9. Methods of Welding Pipe Test
    1. Tacking procedures
    2. Welding procedures
    3. Finishing methods
    4. Selection of filler rods
    5. All position procedures and techniques
    6. Bend tests