Exam Code: API-571
Exam Name: Corrosion and Materials Professional
Certification Provider: API
Corresponding Certification: ICP Programs

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Total Questions: 151
Updated on: Oct 21, 2026
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Total Questions: 151
Updated on: Oct 21, 2026
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Total Questions: 151
Updated on: Oct 21, 2026
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API API-571 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Terms, Definitions, and Acronyms	5%
Topic 2: Uniform or Localized Loss of Thickness	25%	- Corrosion Under Insulation (CUI) - Ammonium Bisulfide Corrosion - Hydrochloric Acid Corrosion - Oxidation and Scaling - Sulfidation
Topic 3: High-Temperature Corrosion and Degradation	15%	- Metal Dusting - Decarburization - Carburization - Graphitization
Topic 4: Mechanical and Metallurgical Failure Mechanisms	15%	- Brittle Fracture - Thermal Fatigue - Creep and Stress Rupture - Mechanical Fatigue
Topic 5: Other Damage Mechanisms	15%	- Cavitation Damage - Erosion and Erosion-Corrosion - Liquid Metal Embrittlement - Microbiologically Influenced Corrosion
Topic 6: Environmentally Assisted Cracking	25%	- Hydrogen Embrittlement - Chloride Stress Corrosion Cracking - Sulfide Stress Cracking - Caustic Stress Corrosion Cracking

API-571 Exam Facts Under Deadline Pressure

My exam date is close — how should I focus my remaining time?

Prioritize ruthlessly. Start with the heaviest API Corrosion and Materials Professional domains — the outline weights tell you where the points are — and run timed ExamPrepAway engine sessions on those first, reading every score honestly. Skip trivia and scattered material entirely; 151 practice questions for the API-571 exam cover the exam's actual objectives, and every one is verified. When your remaining hours are few, a focused bank beats a thousand random pages, and a calm final review beats a panicked one.

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What score do I need for API-571, and what does the exam cost?

You need 70% / Scaled score determined by API to pass, and registration costs $440 USD. Under deadline pressure, knowing both numbers keeps your plan concrete — and verified ExamPrepAway material keeps the preparation itself efficient.

What is the format of the actual API-571 exam?

About 110 (100 scored, 10 unscored pretest) questions in 195 minutes minutes. Timed practice against that exact limit with 151 practice questions for the API-571 exam turns exam day from a surprise into a repeat performance.

How do I book the API-571 exam?

Through the official channel: API ICP Portal Prometric Scheduling Create an account, choose a test center or online proctoring, select your date, and pay to confirm the seat.

Why does ExamPrepAway suit candidates with a tight API-571 schedule?

Because it wastes none of your remaining time. The API-571 bank is distilled by specialists who research which knowledge matters most, so 151 practice questions for the API-571 exam carry verified answers and nothing extraneous. Timed engine sessions measure your pace, free demos let you verify the content instantly, and support answers around the clock when something needs clearing up — every element built for a candidate whose calendar is closing in.

Where should I spend my last study hours on API-571?

Let the official API Corrosion and Materials Professional weights decide:

Mechanical and Metallurgical Failure Mechanisms (15%)
Uniform or Localized Loss of Thickness (25%)
Other Damage Mechanisms (15%)

Heavy domains get the long, careful sessions; light ones get a brisk review. It is the surest way to convert your last hours into exam points.

Would an official course still help this close to the exam?

API RP 571 Damage Mechanisms Standard If time allows, official training fills conceptual gaps; otherwise, the verified ExamPrepAway bank plus timed simulations is the most direct use of your remaining days.

Are there prerequisites for API-571?

Hold current API 510, 570 or 653 certification; or meet education + experience requirements: BS/BS in engineering/tech + 1 year, 2-year degree + 2 years, high school + 3 years industry experience (past 10 years)

API Corrosion and Materials Professional Sample Questions:

Question #1

Which of the following generally manifests itself as a subsurface damage mechanism?

A. Amine Stress Corrosion Cracking
B. Stress-Oriented Hydrogen-Induced Cracking (SOHIC)
C. Sulfide Stress Corrosion Cracking (SCC)
D. Caustic Cracking

Reveal Solution Discussion 0

Correct Answer: B 🗳️