API-571 exam dumps

API API-571 Value Package

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  • Exam Code: API-571
  • Exam Name: Corrosion and Materials Professional
  • No. of Questions: 151 Questions and Answers
  • Updated: Oct 13, 2026

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The API certificate is worth having precisely because few candidates obtain it each year — the API-571 exam is genuinely hard, and self-study pressure discourages many. PrepAwayETE answers that difficulty with 151 practice questions for the API Corrosion and Materials Professional, refined by hundreds of industry experts until only what matters remains.

API API-571 Exam Overview:

Certification Vendor:American Petroleum Institute (API)
Exam Name:API 571 - Corrosion and Materials Professional Certification Examination
Exam Number:API-571
Available Languages:English
Exam Duration:3.5 hours (210 minutes)
Related Certifications:API 510 Pressure Vessel Inspector
API 653 Aboveground Storage Tank Inspector
API 570 Piping Inspector
Real Exam Qty:100
Exam Format:Multiple Choice
Passing Score:Minimum passing score determined by API using the modified Angoff method (typically around 70%)
Certificate Validity Period:3 years
Exam Price:$900 USD (exam fee through API)
Sample Questions: DOWNLOAD DEMO
Exam Way:Computer-Based Testing (CBT) at PSI test centers
Pre Condition:Candidates must hold a current API 510, 570, or 653 certification to automatically qualify. Otherwise, qualification is based on education and a minimum of 1-5 years of experience in the petrochemical industry acquired within the last 10 years.
Official Syllabus URL:https://www.api.org/products-and-services/individual-certification-programs/certifications/api571

API API-571 Exam Syllabus Topics:

SectionObjectives
Topic 1: Damage Mechanisms- General / Mechanical
  • 1. Liquid Metal Embrittlement (LME)
  • 2. Thermal Fatigue
  • 3. Galvanic Corrosion
  • 4. Fatigue
  • 5. Metal Dusting
  • 6. 885°F (475°C) Embrittlement
  • 7. Vibration-Induced Fatigue
  • 8. Atmospheric Corrosion
  • 9. Stress Relief Cracking
  • 10. Strain Aging
  • 11. Brittle Fracture
  • 12. Cavitation
  • 13. Creep / Stress Rupture
  • 14. Hydrogen Embrittlement
  • 15. Temper Embrittlement
  • 16. Mechanical Fatigue
  • 17. Corrosion Under Insulation (CUI)
  • 18. Fretting / Fretting Corrosion
  • 19. Softening (Spheroidization)
  • 20. Graphitization
  • 21. Erosion/Erosion-Corrosion
  • 22. Zinc Embrittlement
  • 23. Sigma Phase Embrittlement
  • 24. Dissimilar Metal Weld (DMW) Cracking
- Environment-Assisted Cracking
  • 1. Sulfide Stress Cracking (SSC) / Hydrogen Stress Cracking
  • 2. Carbonate Stress Corrosion Cracking
  • 3. Chloride Stress Corrosion Cracking (Cl-SCC)
  • 4. Amine Stress Corrosion Cracking
  • 5. Hydrogen-Induced Cracking (HIC) / Stepwise Cracking
  • 6. Hydrogen Embrittlement
  • 7. Stress-Oriented Hydrogen-Induced Cracking (SOHIC)
  • 8. Ammonia Stress Corrosion Cracking
  • 9. Caustic Stress Corrosion Cracking
  • 10. Polythionic Acid Stress Corrosion Cracking (PTA-SCC)
  • 11. Ethanol Stress Corrosion Cracking (SCC)
- High-Temperature Hydrogen Attack (HTHA)
  • 1. Internal Hydrogen Attack (IHA)
  • 2. Decarburization
- High Temperature Corrosion (800°F / 425°C and above)
  • 1. Oxidation
  • 2. Sulfidation
  • 3. Nitriding
  • 4. Metal Dusting
  • 5. Fuel Ash Corrosion
  • 6. Carburization
- Uniform or Localized Loss of Thickness
  • 1. Soil Corrosion
  • 2. Galvanic Corrosion
  • 3. CO2 Corrosion
  • 4. Boiler Water / Condensate Corrosion
  • 5. Cooling Water Corrosion
  • 6. Atmospheric Corrosion
  • 7. Microbiologically Influenced Corrosion (MIC)
  • 8. Dealloying (Selective Leaching)
  • 9. Corrosion Under Insulation (CUI)
  • 10. Flue Gas Dew Point Corrosion
  • 11. Flow-Accelerated Corrosion (FAC) / Flow-Assisted Corrosion
  • 12. Caustic Corrosion

What to Know About the API Corrosion and Materials Professional Before You Start

Yes — the free trial exists so customers can fully understand the system before buying. Download the sample API-571 practice questions at no cost, explore the interface, and check the verified answers yourself. Once you purchase, 365 days of free updates are included, and if the product expires, the update service renews at a 50% discount from your member zone.

The API Corrosion and Materials Professional blueprint is organized into 1 domains, led by Damage Mechanisms. The complete weighted syllabus appears above on this page — it is the checklist your preparation should be measured against.

You will face 100 questions within 3.5 hours (210 minutes) on the API-571 exam. The real exam pressure comes from that ratio — knowledge alone does not finish exams on time. Rehearse with the PrepAwayETE test engine's timed mode, repeat the same question sets until the answers consolidate, and pacing stops being a risk factor.

Candidates must hold a current API 510, 570, or 653 certification to automatically qualify. Otherwise, qualification is based on education and a minimum of 1-5 years of experience in the petrochemical industry acquired within the last 10 years.

Eligibility rules do get revised, so before booking, verify the current requirements on the official API exam page.

Delivery takes effect immediately: download right after payment, with an email copy arriving within one minute. If 2 hours pass with no email, check spam and contact customer service — professional staff can remotely guide installation and use if needed. Downloads and simultaneous use are not limited, so every device you own can carry the material.

If you sit the API-571 exam within 60 days of purchase and do not pass, the PrepAwayETE money back guarantee covers you: file within 2 days of the exam with a scanned enrollment slip and the official score report (PDF), and the claim is processed within 7 days. The candidate name must match the payer name; the policy excludes exams taken within 3 days of purchase, purchases never used in an actual exam attempt, free materials, and expired orders. If you prefer to keep preparing, exchange the product for two free exam packages of equal value and retain the update service on your original purchase.

The API-571 exam — full title Corrosion and Materials Professional — is API's own certification test, and passing it awards the ICP Programs certification at the Professional level. The certificate is valuable precisely because it is demanding: it proves to employers that your skills survived a vendor-built examination. It also serves as a stepping stone toward API 510 Pressure Vessel Inspector, API 570 Piping Inspector, API 653 Aboveground Storage Tank Inspector.

The passing score is Minimum passing score determined by API using the modified Angoff method (typically around 70%), and the official registration fee is $900 USD (exam fee through API). Note that the fee pays for a single attempt — a retake is charged at full price again, which is the expensive way to discover weak spots. The cheaper discovery method is self-testing: drill 151 practice questions at PrepAwayETE in timed mode until your scores clear the passing mark with room to spare, then register.

API Corrosion and Materials Professional Sample Questions:

The 300 series stainless steels (austenitic stainless steels) are generally resistant to oxidation up to what temperature?

  • A. 1600°F (871°C)
  • B. 1500°F (815°C)
  • C. 1400°F (760°C)
  • D. 1300°F (704°C)
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

Explanation: Only visible for PrepAwayETE members. You can sign-up / login (it's free).

(The most effective protection of carbon steel pilings from soil-side corrosion is a combination of a:)

  • A. Corrosion-resistant coating and a cathodic protection system
  • B. Galvanizing and a cathodic protection system
  • C. Clean sand backfill and a cathodic protection system
  • D. Corrosion-resistant coating and a clean sand backfill
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

Explanation: Only visible for PrepAwayETE members. You can sign-up / login (it's free).

Which of the following damage mechanisms is related to steel hardness?

  • A. Sulfide stress corrosion cracking
  • B. Hydrogen-induced cracking
  • C. Stress-oriented hydrogen-induced cracking
  • D. Hydrogen blistering
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

Explanation: Only visible for PrepAwayETE members. You can sign-up / login (it's free).

Steel hardness and strength are critical factors for what type of damage mechanism?

  • A. Polythionic acid cracking
  • B. Hydrogen stress cracking-HF
  • C. Carbonate corrosion stress cracking
  • D. Amine stress corrosion cracking
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

Explanation: Only visible for PrepAwayETE members. You can sign-up / login (it's free).

(Prevention of high-temperature hydrogen attack is usually achieved by using:)

  • A. Alloy steels with chromium and molybdenum added to increase carbide stability
  • B. High-nickel alloy steels selected in accordance with API RP 941
  • C. Austenitic stainless steel cladding on carbon steel equipment
  • D. Carbon-manganese steels with low carbon content
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

Explanation: Only visible for PrepAwayETE members. You can sign-up / login (it's free).

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