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API 6A CRA Mastery: Wellhead, Sour Service & Nickel Alloy
100 students
Created byISO Xpert
Last updated 6/2026
English

What you'll learn

  • Understand the complete API 6A 21st Edition specification for wellhead and Christmas tree equipment
  • Master the selection and application of Corrosion Resistant Alloys (CRA) in oil and gas environments
  • Apply NACE MR0175/ISO 15156 standards for sour service material qualification
  • Differentiate between API 6A Material Classes (AA, BB, CC, DD, EE, FF, HH, ZZ) and their applications
  • Evaluate Product Specification Levels (PSL 1–4) requirements for different service conditions
  • Specify age-hardened nickel-based alloys (Alloy 718, 725, 925) for HPHT applications
  • Implement proper quality control, testing, and inspection procedures for CRA components
  • Analyze real-world failure cases and apply lessons learned to prevent similar incidents
  • Design material solutions for high-pressure, high-temperature (HPHT) well conditions
  • Ensure regulatory compliance and safety in critical oilfield equipment design

Course content

12 sections42 lectures5h 15m total length
  • Introduction1:01
  • Overview of API 6A Specification6:34
  • Pressure and Temperature Ratings6:41
  • About Us and the Course1:31
  • Key Terminology and Definitions6:43
  • API 6ACRA Supplement9:08

Requirements

  • Basic understanding of metallurgy and material science fundamentals
  • Familiarity with oil and gas production equipment and terminology
  • Knowledge of general engineering principles and stress analysis
  • Awareness of corrosion mechanisms in industrial environments
  • Engineering or technical background in mechanical, chemical, or petroleum disciplines
  • Access to API 6A and NACE MR0175 standards is helpful but not required

Description

This course contains the use of artificial intelligence.

Step into the world of high-stakes oilfield materials engineering with this complete, industry-aligned program on API 6A CRA (Corrosion Resistant Alloys). Built for engineers, inspectors, metallurgists, and technical professionals working with wellhead and Christmas tree equipment, this course bridges the gap between specification reading and real-world material decision-making in sour, sweet, and HPHT environments.

You will start from the foundations of API Specification 6A (21st Edition) and progress systematically through corrosion mechanisms, alloy metallurgy, material class selection (AA through HH), Product Specification Levels (PSL 1–4), and the latest NACE MR0175/ISO 15156 requirements for cracking-resistant materials. Dedicated modules dive deep into age-hardened nickel-based alloys including Alloy 718, 725, 925, 716, 935, and 945 — covering chemistry, heat treatment, delta phase control, and qualification testing.

What makes this course stand out is its emphasis on application. You will work through real failure investigations from the UK North Sea, Gulf of Mexico, and Middle East sour gas developments, plus structured material selection examples from Australian LNG projects. Expert tips on PREN calculation, NACE documentation, PSL cost-benefit analysis, and SSC troubleshooting prepare you to apply the standards confidently on the job.

By the end, you will be able to specify the correct material class, PSL, and CRA grade for any service condition, audit compliance documentation, and prevent costly failures in critical oilfield equipment.

ISO Xpert Academy is a specialist training provider focused on international standards, quality systems, and technical compliance for the energy, manufacturing, and engineering sectors. Our courses are designed by certified industry practitioners to deliver practical, audit-ready knowledge you can apply from day one.

Who this course is for:

  • Materials Engineers and Metallurgists working in the oil and gas industry
  • Wellhead Design Engineers and Equipment Specification Engineers
  • Quality Control and Inspection Professionals in oilfield manufacturing
  • Drilling and Completion Engineers seeking material knowledge
  • Technical Sales Engineers for wellhead equipment and CRA materials
  • Corrosion Engineers and Integrity Management Specialists
  • Students and professionals seeking API 6A certification or career advancement
  • Project Managers and Procurement Specialists in upstream oil and gas