Welding Inspection And Metallurgy: API-577 Exam
"Welding Inspection And Metallurgy", also known as API-577 exam, is a API Certification. With the complete collection of questions and answers, iPassleader has assembled to take you through 112 Q&As to your API-577 Exam preparation. In the API-577 exam resources, you will cover every field and category in ICP Programs Certification helping to ready you for your successful API Certification.
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- Updated on: Oct 12, 2026
- No. of Questions: 112 Questions & Answers
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- Updated on: Oct 12, 2026
- No. of Questions: 112 Questions & Answers
One failed API-577 attempt costs the full registration fee plus weeks of waiting. The API Welding Inspection And Metallurgy practice set from iPassleader costs far less than that retake, and its 112 questions show you your real level first.
API API-577 Exam Overview:
| Certification Vendor: | American Petroleum Institute (API) |
|---|---|
| Exam Name: | Welding Inspection and Metallurgy Exam |
| Exam Number: | API-577 |
| Exam Duration: | 195 minutes |
| Real Exam Qty: | 110 (100 scored, 10 pre-test) |
| Exam Price: | $440 USD |
| Certificate Validity Period: | 3 years |
| Exam Format: | Closed-book exam, Multiple-choice questions |
| Available Languages: | English |
| Related Certifications: | API 570 Piping Inspector API 510 Pressure Vessel Inspector API 653 Aboveground Storage Tank Inspector |
| Passing Score: | Scaled score, approximately 70% |
| Recommended Training: | API Recommended Training Resources |
| Exam Registration: | API Official Registration |
| Sample Questions: | DOWNLOAD DEMO |
| Exam Way: | Online remote proctored or in-person at Prometric test centers |
| Pre Condition: | 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) |
| Official Syllabus URL: | https://www.api.org/products-and-services/individual-certification-programs/certifications/api577 |
API API-577 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Welding Metallurgy | 20% | - Weld defects and metallurgical causes - Heat-affected zone (HAZ) and microstructure changes - Phase transformations and cooling rates - Material properties and classifications |
| Welding Inspection Techniques | 15% | - Defect evaluation and acceptance standards - Non-destructive examination (NDE) methods related to welding - Visual inspection methods and criteria - Inspection planning and documentation |
| Industry Applications and Standards | 10% | - Refining and petrochemical plant welding requirements - API RP 577 and related codes/standards - Safety and quality control in welding operations |
| Welding Processes | 20% | - Common welding processes (SMAW, GTAW, GMAW, FCAW, SAW, etc.) - Process principles, equipment, applications and limitations - Welding parameters and their effects |
| Welding Materials and Consumables | 15% | - P-number and F-number assignments - Consumable storage, handling and control - Filler metal classification and selection |
| Welding Procedures and Qualifications | 20% | - Welder performance qualification - Welding Procedure Specification (WPS) - Procedure Qualification Record (PQR) - Essential and non-essential variables |
API Welding Inspection And Metallurgy FAQs: Straight Answers
Delivery takes seconds to minutes: payment clears, download links go live, and an email copy arrives almost immediately — install on as many computers as you need, and contact support if 2 hours pass with nothing. For the what-if: take the corresponding API-577 exam within 60 days of purchase, and if you fail, apply for a full refund by submitting a scanned enrollment slip and your official Score Report PDF within 2 days of the exam — we process it within 7 days. Conditions: exams taken within 3 days of purchase don't qualify, the candidate's name must match the payer's, and free or expired products are excluded. Or exchange for two equal-value exam products free and keep the updates.
Through the vendor's official registration channels:
The exam runs Online remote proctored or in-person at Prometric test centers, so pick the setup that suits you when booking.
The API Welding Inspection And Metallurgy is the official API exam behind the Welding Inspection and Metallurgy Certification certification at the Specialist level. It's how the vendor verifies that your skills meet its standard — and how employers know they do. Related credentials include API 510 Pressure Vessel Inspector, API 570 Piping Inspector, API 653 Aboveground Storage Tank Inspector, useful context if you're mapping a longer certification path.
110 (100 scored, 10 pre-test) questions, 195 minutes on the clock. That ratio is the real exam-within-the-exam: budget your time per question, learn to flag and move on, and rehearse in the iPassleader engine under real timing until finishing comfortably becomes your default.
The vendor recommends the following:
No time for scheduled classes? You're not alone — most of our customers are working IT professionals. The API-577 practice questions from iPassleader deliver the self-paced alternative, ready whenever your calendar is.
The API Welding Inspection And Metallurgy blueprint divides into 6 domains, with Welding Processes (20%), Welding Materials and Consumables (15%), Industry Applications and Standards (10%) among the headline areas. Let the weightings steer your hours — they tell you where the questions concentrate. The full outline above shows every subtopic.
Registration costs $440 USD, and passing requires Scaled score, approximately 70%. Credit card is the standard, secure way to pay — and note the fee applies per attempt, so a retake costs full price again. Practicing with the 112 questions from iPassleader until your mock scores clear the bar comfortably is the cheaper insurance.
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) Vendor policies evolve, so before booking, confirm the latest eligibility details on the official exam page (official API-577 exam information).
Yes — never bought from us before? Download the free PDF demo first and see the quality directly. Purchases include 365 days of free updates, with the latest version sent to you automatically whenever it releases; expired update periods renew at 50% off.
API Welding Inspection And Metallurgy Sample Questions:
Which of the following is not usually an essential variable on a WPS form?
- A. Base metal
- B. Groove design
- C. Welding position
- D. Welding technique
Correct Answer: D 🗳️
In alloy steel, a high hardness measurement could indicate:
- A. The presence of untempered martensite.
- B. The presence of tempered martensite.
- C. The Brinell test device was struck too hard with the hammer.
- D. A correlation to a low tensile strength.
Correct Answer: A 🗳️
For GMAW welding, the last number of the electrode identifies the:
- A. Strength of the electrode.
- B. Operating characteristics.
- C. Coating characteristics.
- D. Chemical composition.
Correct Answer: B 🗳️
Base metals are assigned P-numbers by the ASME Code, Section IX to reduce the number of:
- A. Required welding procedure qualifications.
- B. Required procedure and performance qualifications.
- C. Required welding procedure specifications.
- D. Required mechanical tests.
Correct Answer: B 🗳️
Heating a round bar to an elevated temperature and then quenching one end is a test method to determine:
- A. Hardenability.
- B. Heat treatability.
- C. Temper embrittlement.
- D. Thermal conductivity.
Correct Answer: A 🗳️
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