Houston Magnetic Particle Testing Services
WH Labs performs magnetic particle testing (MT) in Houston to find surface and near-surface defects in ferromagnetic metal components, including welds, pressure vessels, and pipeline sections. The process magnetizes a component and applies iron particles that gather at cracks or discontinuities, revealing flaws invisible to the naked eye. WH Labs’ ASNT-certified technicians perform MT in-house and on-site, with most results available the same day.
How Magnetic Particle Testing Works
Magnetic particle testing works by magnetizing a ferromagnetic component, applying fine iron particles to its surface, and inspecting where those particles cluster to reveal surface and near-surface flaws exposed by magnetic flux leakage. WH Labs follows this process for every MT inspection, whether performed in-house or on-site.
- Surface preparation to remove dirt, grease, and scale that could mask a defect
- Magnetization using direct or indirect current to establish a magnetic field in the part
- Application of dry powder or wet suspension ferromagnetic particles, selected based on the part and expected defect type
- Inspection under LED UV-A lighting to identify particle patterns at surface and near-surface discontinuities
- Analysis supported by WH Labs’ proprietary software to reduce interpretation variability and produce quantifiable, repeatable data
- Documentation with high-resolution photography and a detailed inspection report
Why Choose WH Labs for Magnetic Particle Testing in Houston, TX
ASNT-Certified Technicians
MT inspections are performed by ASNT Level II and Level III certified technicians, so every result meets recognized industry qualification standards.
ISO 9001:2015 and API Q1 Accredited
WH Labs holds ISO 9001:2015 and API Q1 certification, supporting quality management and petroleum industry compliance on every MT project.
Advanced Equipment
Parker Research magnetizing yokes, adjustable bench units, and LED UV-A illumination systems meeting AMS 2300 requirements allow WH Labs to detect defects as small as 0.0625 inches.
Fast Turnaround
Most magnetic particle inspections are completed in 30 to 60 minutes, with mobile units available for on-site testing across Houston and the surrounding area.
Industries We Serve
WH Labs performs magnetic particle testing for industries where undetected surface defects carry the highest safety and cost consequences:
- Oil & Gas — pipeline welds, pressure vessels, drilling equipment
- Aerospace — turbine blades, landing gear components, airframe structures
- Manufacturing — heavy machinery and precision tooling
- Maritime — hull inspections and propulsion systems
- Construction — structural steel examination
- Automotive and power generation
Magnetic particle testing is one part of WH Labs’ broader non-destructive testing services, which also include ultrasonic testing for subsurface flaws and liquid penetrant testing for non-ferromagnetic materials.
Recent Results
Recent WH Labs magnetic particle inspections in Houston have caught defects other methods missed, including:
- Hairline cracks in offshore drilling equipment that a prior ultrasonic inspection had missed
- Subsurface-adjacent flaws in pipeline welds bound for Gulf Coast service, caught before installation
- Microscopic fractures in pressure vessel welds that had already passed visual inspection
- Stress corrosion cracking in a refinery heat exchanger, identified during routine maintenance ahead of a scheduled shutdown
Schedule Magnetic Particle Testing in Houston
Magnetic particle testing catches the surface and near-surface flaws that can turn into weld or component failures if missed. WH Labs performs MT in-house and on-site across Houston, backed by ASNT-certified technicians and ISO/API-accredited quality systems.
Get a Free Quote to schedule magnetic particle testing, or ask about pairing it with ultrasonic or liquid penetrant testing for full inspection coverage.
Frequently Asked Questions
Do You Offer On-Site Magnetic Particle Testing in Houston?
Yes. WH Labs technicians bring MT equipment directly to your facility for on-site inspections throughout the Houston area.
How Long Does a Typical Magnetic Particle Inspection Take?
We complete typical magnetic particle inspections in 30-60 minutes, depending on component size, complexity, and access conditions. Our team prioritizes thorough examinations while maintaining efficient inspection timelines.
Can Magnetic Particle Testing Find Subsurface Defects?
No, magnetic particle testing primarily detects surface and near-surface defects. We’re limited to approximately 0.25 inches in depth at maximum. For subsurface flaws, we recommend ultrasonic or radiographic methods instead.
What Materials Cannot Be Tested with Magnetic Particle Inspection?
Non-ferromagnetic materials such as aluminum, copper, titanium, austenitic stainless steels, and most polymers can’t hold the magnetic field MT requires.
How Much Does Magnetic Particle Testing Cost per Component?
We typically charge $60-250 per component for magnetic particle testing, depending on size, complexity, preparation requirements, and inspection scope. Contact WH Labs for a project-specific quote.
Is Sample Preparation Required Before Magnetic Particle Testing?
Yes, we do require basic sample preparation. We’ll need components cleaned of dirt, grease, and loose scale to guarantee accurate detection of surface-breaking discontinuities during our magnetic particle inspection process.
Are Test Results Accepted by International Certification Bodies?
Our MT test results are accepted by major certification bodies, including ISO, ASME, ASTM, and API, when performed according to their standards and by certified Level II technicians.
