The API-577 exam leads to the Welding Inspection and Metallurgy Certification certification from American Petroleum Institute (API). It is positioned at the Specialist level. The exam validates the knowledge and skills expected of candidates preparing for API Welding Inspection And Metallurgy.

Related certifications include:

• API 510 Pressure Vessel Inspector
• API 570 Piping Inspector
• API 653 Aboveground Storage Tank Inspector

The API-577 exam includes 110 (100 scored, 10 pre-test) questions and allows 195 minutes. Before test day, divide the available time by the number of questions in a timed practice set to establish a steady per-question pace. If a difficult item starts consuming too much time, mark it for review and move forward instead of losing momentum. A full timed practice session can help you decide when to move on, when to return, and how much buffer to reserve for a final check.

The passing score for API-577 is Scaled score, approximately 70%, and the official exam fee is $440 USD. Because a retake requires paying the exam fee again, use timed practice results as a readiness check before scheduling your next attempt. If your performance remains inconsistent, continue reviewing weak domains and repeat a timed session before booking the exam.

Hold current API 510, 570 or 653 certification; or BS/BE + 1 year experience; or 2-year degree + 2 years experience; or high school + 3 years experience (all within last 10 years)

Eligibility rules can change, so confirm the current requirements on the official exam page before registering.

You can register through the official channels listed below:

• API Official Registration

The available exam delivery method is Online remote proctored or in-person at Prometric test centers.

The official training options include:

• API Recommended Training Resources

After reviewing the recommended training, reinforce what you learned with Actual4dump's 112 practice questions for API-577.

Yes. Actual4dump provides a free PDF demo so you can review the format, question style, and answer quality before placing an order. Your purchase includes 365 days of free updates, and expired products can receive continued update service at a 50% discount.

If you purchase the corresponding API-577 preparation material and do not pass that exam within 60 days of purchase, you may apply for a full refund under the 100% Money Back Guarantee. The request requires a scanned exam enrollment slip and the official Score Report PDF, submitted within two days after the exam. Eligible requests are processed within seven days.

Claims are not eligible if the exam was taken within three days of purchase, the product was downloaded without an exam attempt, the order was free or expired, or the candidate name does not match the payer name. If you prefer an exchange instead of a refund, you can receive two free products of equal value while keeping the update service for your original purchase.

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The current API-577 outline is organized into 6 top-level domains. The first listed areas include:

• Welding Procedures and Qualifications (20%)
• Welding Inspection Techniques (15%)
• Welding Metallurgy (20%)

Review the Exam Topics section above for the complete outline and any nested subtopics.