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API 650 & 653 Storage Tank Design, Maintenance & Evaluation

This three day course will provide an intensive overview of the API 650 Welded Steel Tanks for Oil Storage and API 653 Tank Inspection, Repair, Alteration, and Reconstruction.

Course Highlights

API 650 covers material, design, fabrication, erection, and testing requirements for aboveground, vertical, cylindrical, closed- and open-top, welded steel storage tanks in various sizes and capacities. API 650 applies to tanks with internal pressures approximating atmospheric pressure, but higher pressure is permitted when addtional requirements are met. This standard applies only to tanks whose entire bottoms are uniformly supported and in nonrefrigerated service with a maximum operating temperature of 90 C [200 F].

API 653 provides a standard for inspection, repair, alteration, evaulation and reconstruction of tankage. The standard provides guidance on brittle fracture considerations, maintenance procedures such as tank hot taps, evaluation of out of roundness and more.

Detailed Course Description


Day 1

Part I - API-650

Storage Tank Types & Features
     - Tank Type & Functions
     - Primary Components
     - Appurtenances
     - Design Specifications

Material Selection
     - Material Property Considerations
     - Acceptable Material Specifications

Mechanical Design Requirements
     - Mechanical Design parameters
     - Shell Thickness Determination
     - Wind Girder Requirements
     - Nozzle Design Details
     - Roof Requirements
     - Bottom Requirements

Fabrication Details
     - Types of Welded Joints
     - Welding Methodology
     - Weld Detail Requirements

Day 2

Inspection & Testing Requirements
     - Types of Weld Defects
     - Inspection Methods
     - Inspection Requirements
     - Dimensional Tolerances
     - Testing

Vents And Fire Protection Systems
     - Vents for Fixed-Roof Tanks
     - Vents for Floating Roof tanks
     - Fire Protection Systems


Part II - API-653

     - Scope of API-653
     - Definitions
     - Starting an API-653 Compliance Program

Tank Inspection
     - Objectives
      - Prioritization
     - Inspection Frequencies
     - Record Keeping
     - Inspector Qualifications

Day 3

Tank Component Evaluation
     - Shell
     - Bottom
     - Roof
     - Foundation
     - Shell and Bottom Settlement

Tank Repair & Alteration
     - General Considerations
     - Material Considerations
     - Repair, Replace & Alteration of
       · Shell Plate Material
       · Shell Penetrations
       · Repair of Tank Bottom
       · Tank Roof

Dismantling And Reconstruction
     - Dismantling Methods
     - Reconstruction
     - Dimensional Tolerances

Examination And Testing
     - General
     - Welding Inspection
     - Hydrostatic Testing

The examination is administered by the Professional Examination Service (PES) and takes approximately four hours to complete.  There are 75 multiple-choice questions for this examination.  For more information on examination content please see the Body of Knowledge. You may not bring any reference materials, codebooks, or any other printed or written material to the examination.

As of 2014, API certification programs are computer based. Contact API or visit their website for more exam information

For more information from API , please refer to:

For more course information see Carmagen Training Courses

Course content and registration information for Canada / USA classes can be obtained from   John Aumuller  P. Eng., Ph. D., as needed.