CAD · Free · ₹0

Piping Design and Isometrics for Oil and Gas (ASME B31.3)

The piping fundamentals an EPC contractor or refinery hires for: pipe sizes and schedules, fittings, flanges, gaskets, bolting and valves, materials and piping classes, ASME B31.3 wall thickness, plot plans, pipe racks and nozzle orientation, reading and drawing isometrics with cut lengths, weld numbers and a BOM, supports and spans, thermal expansion and flexibility, line lists, MTOs and hydrotest.

13 modules 6h 38m of video English · self-paced

Inside the course

Piping Design and Isometrics for Oil and Gas (ASME B31.3): Syllabus at a glancePiping Design and Isometrics for Oil and Gas (ASME B31.3): What you will be able to doPiping Design and Isometrics for Oil and Gas (ASME B31.3): Tools and credits

From the lessons

  • Piping Engineering Workflow in EPC Projects | P&ID to Isometrics Explained

    Piping in a plant: the team, the deliverables and the workflow

    Learn with EngrWaqas

  • PIPING FITTINGS | PIPING MANTRA |

    Fittings, flanges, gaskets and bolting

    Piping Mantra

  • [English] Piping Material Codes & Specification

    Materials and piping classes

    Welding and NDT

  • How to prepare an Equipment Layout | Considerations | Safety Distances | Piping Mantra |

    Plot plans, equipment layout, pipe racks and nozzle orientation

    Piping Mantra

  • How to draw piping orthographic to isometric in Autocad | For Autocad beginners

    Drawing isometrics: cut lengths, weld numbers, the BOM and CAD tools

    Technical Piping

  • PIPING THERMAL EXPANSION | PIPING FLEXIBILITY & ANCHOR LOCATION | PIPING MANTRA | WITH EXAMPLES

    Thermal expansion and flexibility basics

    Piping Mantra

Lesson frames belong to the creators named in the Credits below and are shown from YouTube.

What you will learn

Explain how piping fits into an EPC project and what each piping deliverable is for; read pipe tables and calculate weights; choose fittings, flanges, gaskets, bolting and valves for a service; select materials and read a piping class; calculate B31.3 wall thickness and pick a schedule; read plot plans, rack layouts, GA drawings and nozzle orientations; read isometrics and draw them with cut lengths, weld numbers and a BOM; place supports from span tables; calculate thermal growth and recognise when a line needs stress analysis; and produce a line list, an MTO and a hydrotest pressure.

  • Read pipe tables: NPS, DN, OD and schedule, and work out bore, weight and water content
  • Choose fittings, flanges, gaskets and bolting, and pick a flange class from the B16.5 rating table
  • Select valves by duty and lay out the valves around a pair of pumps
  • Read a piping class and choose materials for cold, hot and corrosive service
  • Calculate ASME B31.3 wall thickness with corrosion allowance and mill tolerance
  • Read plot plans, rack sections and nozzle orientations, and check pump NPSH
  • Read and draw isometrics with coordinates, cut lengths, weld numbers, spools and a BOM
  • Place supports, estimate thermal growth, and produce a line list, an MTO and a hydrotest pressure

The course project · about 10 hours

Designing a gas plant condensate line: line list, wall thickness, isometric with cut lengths and BOM, supports, MTO and hydrotest

Take one new process line from the P&ID to a test-ready design: fill its line list row and choose the class, prove the wall thickness to ASME B31.3, draw the isometric with coordinates, cut lengths, weld numbers, spools and a bill of materials, place and load the supports, screen its flexibility, work the MTO with surplus and write the hydrotest pack summary. The sample pack shows each document for a gas plant near Darwin, Australia.

Sample document pack, 5 documents, filled in for the scenario

  • RegisterLine list extract: 6"-P-2104-B1A
  • ReportWall thickness calculation: 6"-P-2104-B1A
  • BOMIsometric 6"-P-2104-B1A: route, cut list, welds, BOM and MTO
  • PlanSupport plan and flexibility screening: 6"-P-2104-B1A
  • ProcedureHydrotest pack summary: test system TS-2104 (line 6"-P-2104-B1A)

Read inside the course and download as a workbook. The project is optional practice, marked when you submit it; the certificate needs only the modules and the final assessment.

Course content

13 modules · 36 lessons · 6h 38m

In order, at whatever pace suits you. Each module ends with a practice task that builds on the last.

  1. 01Piping in a plant: the team, the deliverables and the workflow29m
  2. 02Pipe sizes, schedules, weights and manufacture31m
  3. 03Fittings, flanges, gaskets and bolting33m
  4. 04Valves: types, standards and selection30m
  5. 05Materials and piping classes18m
  6. 06ASME B31.3: scope, structure and wall thickness42m
  7. 07Plot plans, equipment layout, pipe racks and nozzle orientation42m
  8. 08Reading piping isometrics25m

Requirements

Who it is for
Beginner to intermediate. For mechanical graduates and diploma holders, draughtsmen and pipe fitters moving into piping design. You need school geometry and trigonometry and a spreadsheet; no piping experience is needed. If P&IDs are new to you, P&ID Reading and Instrumentation Design Documents is a good companion course.
Software
A spreadsheet (LibreOffice Calc is free) for the calculations. For drawing isometrics, LibreCAD (free 2D CAD with an isometric grid) or FreeCAD (free 3D CAD; the Dodo add-on draws pipes, elbows and flanges). AutoCAD and its Plant 3D toolset are optional: free to eligible students and educators on the Autodesk Education plan, otherwise a short trial. Squared or isometric paper works for every exercise. What to download, and how
Hardware
None. Any laptop that runs a spreadsheet and LibreCAD is enough.

Software you need

What to download, where from, what it costs and how to install it. Every link goes to the maker's own site, never a mirror.

Nothing to install

A spreadsheet is enough for every calculation, and every isometric can be drawn on isometric paper or in LibreCAD (free 2D CAD with an isometric grid, librecad.org). FreeCAD with the Dodo add-on and AutoCAD with the Plant 3D toolset are useful but optional.

Optional

Useful, not needed to finish the course.

  1. 01

    LibreOffice

    The Document Foundation

    Free
    Runs on
    Windows 10 or 11, macOS 11 or newer (Intel or Apple silicon), Linux
    Account
    None needed
    Size
    up to 1.5 GB of disk space on Windows

    LibreOffice is free, open-source software under the Mozilla Public License 2.0, for any use including business. Calc is its spreadsheet.

    Official download pagelibreoffice.org
  2. 02

    FreeCAD

    FreeCAD project (open source)

    Free and open source
    Runs on
    Windows, macOS and Linux
    Account
    None needed

    FreeCAD is released under the LGPL 2.0 or later and is free for any use, including commercial work. The course uses its TechDraw workbench, version 1.1 or later.

    Official download pagefreecad.org
  3. 03

    AutoCAD

    Autodesk

    Free trial: 15 days
    Runs on
    Windows 10 or 11 64-bit; AutoCAD for Mac on recent macOS versions
    Account
    A free Autodesk account
    Size
    about 10 GB of disk space for AutoCAD on Windows

    The AutoCAD trial lasts 15 days in most regions (30 in a few), expires on its own and cannot be extended. Students and educators can get free one-year educational access through an Autodesk Education plan, renewable while they stay eligible; education licences are for learning only.

    Official download pageautodesk.com

    Alternatives

    • Autodesk Education plan: Free one-year access for verified students and educators, renewable while eligible.
    • LibreCAD: Free open-source 2D CAD if you only need basic drafting practice.

Checked against each maker's own page on 27 September 2026. Trial lengths and editions change; the maker's page is the final word.

Piping Design and Isometrics for Oil and Gas (ASME B31.3) at a glance

Piping Design and Isometrics for Oil and Gas (ASME B31.3) is a free, self-paced online course from EDWartens for mechanical graduates, diploma holders, CAD draughtsmen and pipe fitters moving into piping design at EPC contractors, refineries and gas plants worldwide. It has 13 modules and 6h 38m of video lessons by Piping Mantra, HardHat Engineer, The Piping Engineer and others, with written notes and worked problems, a practical project with a document pack and a 15-question final assessment (pass mark 60%). Learning is free with an account; an optional certificate with a public verification code is issued when you pass. Last updated 27 September 2026.

All course facts
Price
₹0, free for good. No trial, no card. Comparable classroom training of this length costs about ₹3,999.
Who it is for
Mechanical graduates, diploma holders, CAD draughtsmen and pipe fitters moving into piping design at EPC contractors, refineries and gas plants worldwide
Format
13 self-paced modules, 6h 38m of video, written notes, a practice task per module and one final assessment.
Level
Beginner. Beginner to intermediate. For mechanical graduates and diploma holders, draughtsmen and pipe fitters moving into piping design. You need school geometry and trigonometry and a spreadsheet; no piping experience is needed. If P&IDs are new to you, P&ID Reading and Instrumentation Design Documents is a good companion course.
Brand
Vendor-neutral
Software
A spreadsheet (LibreOffice Calc is free) for the calculations. For drawing isometrics, LibreCAD (free 2D CAD with an isometric grid) or FreeCAD (free 3D CAD; the Dodo add-on draws pipes, elbows and flanges). AutoCAD and its Plant 3D toolset are optional: free to eligible students and educators on the Autodesk Education plan, otherwise a short trial. Squared or isometric paper works for every exercise.
Hardware
None. Any laptop that runs a spreadsheet and LibreCAD is enough.
Certificate
Optional EDWartens Certificate of Completion, verifiable by code. Not a vendor credential.
Video lessons by
Piping Mantra, HardHat Engineer, The Piping Engineer, Welding and NDT, PipingStress, Technical Piping, saVRee, Basics4Piping, I4I Academy, WeldTube, EPSC DESIGN, Plant 3D virtual factory, Learn with EngrWaqas, The Engineering Mindset (independent creators, credited below)
Language
English
Last updated
27 September 2026

A shareable EDWartens certificate

Finish every module and pass the final assessment, and the optional EDWartens certificate is yours. It carries a unique verification code on a public page anyone can check, so it stands up when a recruiter looks it up. See it below.

The course itself stays free whether or not you ever buy one.

Stuck? Ask a practising engineer

A free course usually means a comment section and hope. This one does not. Every module has an Ask-your-trainer panel that reaches the same engineers who teach our paid programme: people who commission panels for a living, not moderators.

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Learner reviews

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Reviews here are written only by learners who have finished every module of Piping Design and Isometrics for Oil and Gas (ASME B31.3), and they are published exactly as written. Finish the course and yours will be the first.

Common questions

Who is this piping design course for?

It is for mechanical graduates and diploma holders, CAD draughtsmen and pipe fitters who want to move into piping design or layout at an EPC contractor, a refinery, a gas plant or a chemical plant. It also suits engineers from other disciplines who need to read piping drawings with confidence.

Is the course free to learn?

Yes. Every module, the notes, the worked problems, the practice tasks, the project and the final assessment are free, and the software used is free to download or free on an education plan. The certificate is optional.

Do I need to buy a copy of ASME B31.3?

No. The notes explain the structure of the code, its fluid service categories and its wall thickness and test pressure formulas in our own words, with worked numbers. A working designer uses the licensed edition named in the project specification; the 2024 edition is the current one.

Which software does the course use?

A spreadsheet such as LibreOffice Calc for the calculations, and LibreCAD (free 2D CAD with an isometric grid) or FreeCAD with the Dodo add-on for drawing isometrics. AutoCAD with the Plant 3D toolset is optional, free for eligible students and educators on the Autodesk Education plan. Every exercise can also be done on isometric paper.

What will I be able to do at the end?

Read a piping class and a line list, pick a flange class and a pipe schedule, read and draw an isometric with cut lengths, weld numbers and a bill of materials, place supports from a span table, estimate thermal growth, and work out an MTO and a hydrotest pressure. The optional project takes one line from the P&ID to a test-ready design.

Is this useful for piping jobs in the Gulf and on international projects?

Yes. ASME B31.3 and the ASME B16 and API component standards are used on most oil, gas and petrochemical projects worldwide, including the large EPC projects in the Gulf, and the deliverables taught here (line lists, piping classes, isometrics, MTOs and test packs) are the ones those contractors ask new designers to produce.

How long does the Piping Design and Isometrics for Oil and Gas course take?

About 12 hours of video, notes and practice at your own pace, of which under 7 hours is video. The optional project takes about 10 hours more.

What certificate does the Piping Design and Isometrics for Oil and Gas course give?

An EDWartens certificate of completion, issued when you finish the modules and pass the 15-question final at 60 percent, with a number anyone can verify on our site. It is not an ASME, API or other professional credential, and EDWartens is not affiliated with ASME, API or any software maker.

Is the Piping Design and Isometrics for Oil and Gas course free in India, and what does the certificate cost?

Yes. Learning costs ₹0 in India: every module, the written notes, the practice tasks and the final assessment, with no card and no trial period. The only paid item is the optional EDWartens Certificate of Completion, ₹459 including GST for this beginner course, paid in rupees through Razorpay, and only if you want it after passing the final assessment.

What you walk away with

Your certificate for Piping Design and Isometrics for Oil and Gas (ASME B31.3)

Finish the course, pass the final, and this is the document with your name on it.

Sample EDWartens Certificate of Completion for Piping Design and Isometrics for Oil and Gas (ASME B31.3)
Sample. The issued certificate carries your name, admission number, a unique certificate number and its own QR code.

  • Verifiable by anyone

  • Adds to LinkedIn in one click

  • QR code on the certificate

  • Names what you can do

  • A permanent link

  • Earned, not attended

Learning is free. The certificate is optional.

Add it now and pay only when you have finished the course, or come back for it later. One-off, US$23.99, with a receipt.

Issued by EDWartens India (Wartens Automation Private Limited) as a Certificate of Completion for this self-paced course. It is not a vendor certification, a university award or a CPD-accredited activity, and it does not certify competence on live equipment. Delivered electronically; see the refund policy.

Credits

Who made the video lessons

The video lessons in this course were created by the people below, not by EDWartens. Every lesson streams from its creator's own YouTube channel; EDWartens neither hosts nor sells that footage, and the creators are not affiliated with EDWartens and do not endorse this course. What EDWartens wrote is the study plan, the notes, the practice tasks and the assessments.

  • Piping Mantrathe lessons on FEED, fittings, flange types, valves, codes and standards, equipment layout, nozzle orientation, the 30 percent model review, pipe supports and spans, thermal expansion and anchors, the stress critical line list, MTO, shop and field welds, and pressure testing
  • HardHat Engineerthe guides to pipe sizes and schedules, API 5L against A106 pipe, piping material selection, and anchors, guides and limit stops
  • The Piping Engineerpiping isometric drawings for beginners, reading isometrics and calculating slopes, and the recap in the final module
  • Welding and NDTthe English lessons on pipe sizes, schedules, NPS and DN, and on piping material codes and specifications
  • PipingStresspipe rack design tips and the hand calculation of an expansion loop
  • Technical Pipingselecting a flange rating class from ASME B16.5, and drawing a piping isometric from an orthographic view in AutoCAD
  • saVReethe animated explanation of gate, globe, ball and butterfly valves
  • Basics4Pipingthe chapter-by-chapter tour of ASME B31.3
  • I4I Academythe minimum required thickness calculation and schedule selection to ASME B31.3
  • WeldTubereading and drawing pipe-fitting isometric blueprints from the fitter's side
  • EPSC DESIGNthe piping line list and its columns
  • Plant 3D virtual factorythe AutoCAD Plant 3D beginner tutorial, from a 3D model to isometrics and drawings
  • Learn with EngrWaqasthe piping engineering workflow in EPC projects, from P&ID to isometrics, that opens the course
  • The Engineering Mindsetpump NPSH basics for the pump suction layout module

If you are one of these creators and would like a lesson removed or credited differently, write to info@wartens.com.