Randomized questions, a countdown clock, score history after every attempt: the Actual4Exams test engines turn API Corrosion and Materials Professional practice into a rehearsal of the real API-571 experience, weak spots included.
API API-571 Exam Overview:
| Certification Vendor: | American Petroleum Institute (API) |
|---|---|
| Exam Name: | Corrosion and Materials Professional Certification Exam |
| Exam Number: | API-571 |
| Exam Price: | $440 USD |
| Exam Duration: | 195 minutes |
| Real Exam Qty: | 110 (100 scored, 10 unscored pretest) |
| Passing Score: | 70% / Scaled score determined by API |
| Certificate Validity Period: | 3 years |
| Related Certifications: | API 653 Aboveground Storage Tank Inspector API 510 Pressure Vessel Inspector API 570 Piping Inspector |
| Available Languages: | English |
| Exam Format: | Closed-book exam, Computer-based test, Multiple-choice questions |
| Recommended Training: | API RP 571 Damage Mechanisms Standard |
| Exam Registration: | API ICP Portal Prometric Scheduling |
| Sample Questions: |  |
| Exam Way: | Computer-based testing (CBT) at Prometric test centers; online proctored option available |
| Pre Condition: | 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) |
| Official Syllabus URL: | https://www.api.org/products-and-services/individual-certification-programs/certifications/api571 |
API API-571 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Terms, Definitions, and Acronyms | 5% | |
| Topic 2: Mechanical and Metallurgical Failure Mechanisms | 15% | - Mechanical Fatigue - Thermal Fatigue - Creep and Stress Rupture - Brittle Fracture |
| Topic 3: Environmentally Assisted Cracking | 25% | - Caustic Stress Corrosion Cracking - Hydrogen Embrittlement - Chloride Stress Corrosion Cracking - Sulfide Stress Cracking |
| Topic 4: High-Temperature Corrosion and Degradation | 15% | - Decarburization - Graphitization - Metal Dusting - Carburization |
| Topic 5: Uniform or Localized Loss of Thickness | 25% | - Oxidation and Scaling - Ammonium Bisulfide Corrosion - Hydrochloric Acid Corrosion - Corrosion Under Insulation (CUI) - Sulfidation |
| Topic 6: Other Damage Mechanisms | 15% | - Erosion and Erosion-Corrosion - Cavitation Damage - Microbiologically Influenced Corrosion - Liquid Metal Embrittlement |
FAQ: Preparing for API Corrosion and Materials Professional the Smart Way
API Corrosion and Materials Professional is an official exam run by American Petroleum Institute (API) under exam code API-571. Passing it awards the Corrosion and Materials Professional certification, which sits at the Professional tier. It also counts toward related credentials such as API 510 Pressure Vessel Inspector, API 570 Piping Inspector, API 653 Aboveground Storage Tank Inspector. Certified professionals remain in shorter supply than the market wants, which is precisely why this exam keeps showing up in conversations about better roles and better pay.
The API Corrosion and Materials Professional exam gives you 195 minutes to work through 110 (100 scored, 10 unscored pretest) questions. That is a tight ratio, and it punishes candidates who get emotionally attached to any single item. The fix is mechanical: answer what you know, flag what you do not, and keep moving. A few full-length timed runs in the Actual4Exams test engine, with its randomized question order, will calibrate your pace far better than untimed reading ever could.
The official fee for API Corrosion and Materials Professional is $440 USD, and 70% / Scaled score determined by API is what passing takes. The uncomfortable part: retakes cost the full $440 USD again, which makes preparation the cheapest line item in this whole project. Before booking, put yourself through repeated scored sessions with the Actual4Exams practice tests and compare results over time; a stable margin above the passing line, not a single lucky run, is when you are ready.
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)
Vendor rules do get revised, so treat this as your starting point and confirm the current eligibility details before booking via the official exam page.
API Corrosion and Materials Professional registration runs through these official channels.
Worth noting when you schedule: the exam is delivered Computer-based testing (CBT) at Prometric test centers; online proctored option available.
Yes, American Petroleum Institute (API) points API Corrosion and Materials Professional candidates toward the following training.
Whatever course you choose, close the loop with question practice: the 151 items in the Actual4Exams API-571 package convert course knowledge into exam-day scoring ability.
It is. Actual4Exams publishes a free PDF demo of the API Corrosion and Materials Professional material, so the product can prove itself before you pay. Your purchase then comes with 365 days of free updates, and once that period ends, extending the update service costs 50% of the regular price. The test engine software itself is verified malware-free and safe to install.
Actual4Exams stands behind the product with a 100% money-back guarantee under defined conditions. If you take the API Corrosion and Materials Professional exam within 60 days of purchase and fail, you qualify for a full refund, provided the exam corresponds to your product. Sitting the exam within 3 days of purchase does not qualify, and neither do unused downloads, free materials, or expired orders; the candidate name must match the payer name. Submit a scanned enrollment slip and the official Score Report PDF within 2 days of the exam, and claims are resolved within 7 days. You may also choose an exchange instead of a refund: two other exam products of equal value, free, with the update service on your original purchase retained.
Delivery takes about a minute. Files unlock for instant download at payment and are emailed to you automatically; if 2 hours pass with nothing received, check spam and contact customer service. There is no installation limit, so the test engine can live on every device you own, phone included.
API Corrosion and Materials Professional breaks down into 6 official domains, led by Other Damage Mechanisms (15%), Terms, Definitions, and Acronyms (5%), and Environmentally Assisted Cracking (25%). You will find the full topic-by-topic outline above on this page; use the weightings to budget your study hours where they pay back the most.
API Corrosion and Materials Professional Sample Questions:
Question 1
Blistering and hydrogen-induced cracking (HIC) damage are most affected by what aspect of steels?
A. Hardness
B. Permeability
C. Inclusions
D. Residual Stress
Question 2
(Cooling water corrosion usually increases with decreasing:)
A. Oxygen content
B. Process temperatures
C. Microbiological activity
D. Velocities
Question 3
An NPS 3/4 (DN 20) carbon steel unsupported high-point vent on a steam line has failed by cracking.
The most likely cause is:
A. original weld defect.
B. mechanical fatigue.
C. sulfide stress cracking.
D. thermal overload.
Question 4
Which of the following is the best description of the surface appearance of metals with chloride stress corrosion cracking?
A. Linear cracking with few branches extending away from welds
B. Concentric ring "beach mark" cracking
C. Highly branched crazed cracking
D. Linear cracking along weld heat-affected zones
Question 5
Which of the following can cause hydrogen embrittlement of carbon steel?
A. High-temperature hydrogen attack (HTHA)
B. Welding with wet electrodes
C. Cleaning and pickling in caustic solutions
D. Improper postweld heat treatment (PWHT)
Solutions:
| Question 1 Answer: C | Question 2 Answer: D | Question 3 Answer: B | Question 4 Answer: C | Question 5 Answer: D |
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We still understand the effort, time, and money you will invest in preparing for your certification exam, which makes failure in the API API-571 exam really painful and disappointing. Although we cannot reduce your pain and disappointment but we can certainly share with you the financial loss.
This means that if due to any reason you are not able to pass the API-571 actual exam even after using our product, we will reimburse the full amount you spent on our products. you just need to mail us your score report along with your account information to address listed below within 7 days after your unqualified certificate came out.
