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: Nov 04, 2026
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Total Questions: 151
Updated on: Nov 04, 2026
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Total Questions: 151
Updated on: Nov 04, 2026
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Buying for a whole team? TestKingsIT welcomes corporate API-571 orders with multi-year arrangements — free updates through the first year and half-price API Corrosion and Materials Professional bundles from the second year onward.

API API-571 Exam Syllabus Topics:

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

Your API Corrosion and Materials Professional Preparation Questions, Answered

How do I book my API-571 exam appointment?

Use the official registration channel: API ICP Portal Prometric Scheduling Create an account, choose between a test center and online proctoring, pick your date, and pay the exam fee to confirm.

How do I know I am getting the latest version?

Two ways. First, the IT staff checks API-571 update information every day, and the API Corrosion and Materials Professional bank on the website is always the current version — if a vendor refresh is ever pending, the team tells you honestly and suggests waiting rather than selling you material that is about to change. Second, you can verify it yourself: download the free demo and compare it against any other version you have seen. That transparency is policy at TestKingsIT, not marketing.

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Are there official courses that complement API-571 practice?

API RP 571 Damage Mechanisms Standard Many candidates combine an official course for structured theory with the verified TestKingsIT question bank for realistic timed rehearsal.

How long is the API-571 exam and how many questions does it have?

You will face about 110 (100 scored, 10 unscored pretest) questions in 195 minutes minutes. The TestKingsIT practice engine mirrors that format and timing, and working through 151 practice questions for the API-571 exam makes the real session feel familiar rather than rushed.

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Because the fundamentals are solid: 151+ Q&As covering the API Corrosion and Materials Professional objectives with verified answers, a bank checked daily and sold only in its latest version, support that answers within two hours around the clock, strict privacy protection, and loyalty savings for customers who return. Add the conditional refund policy and the API-571 purchase becomes a low-risk, high-support decision.

What must I complete before registering 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)

What does it take to pass API-571, and what does it cost to sit?

Passing requires 70% / Scaled score determined by API, and a seat costs $440 USD. That fee is due again on every retake, so thorough preparation with verified TestKingsIT material is the sensible investment.

Which API-571 domains deserve the most study time?

The official API Corrosion and Materials Professional outline assigns its weights like this:

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

Budget your hours according to those weights and test each domain with the TestKingsIT bank before exam day.

API Corrosion and Materials Professional Sample Questions:

Question #1

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

A. Hydrogen-induced cracking
B. Sulfide stress corrosion cracking
C. Stress-oriented hydrogen-induced cracking
D. Hydrogen blistering

Reveal Solution Discussion 0

Correct Answer: B 🗳️