As a full-service provider, IIA’s licensed professional engineers work closely with our non-destructive examination (NDE) experts to deliver turnkey solutions to plants in the electric power industry and beyond.

With decades of experience, our team provides nationwide services to operate, maintain and repair your systems. As a trusted partner to the paper and pulp industry clients turn to us for unmatched technical expertise and quick project turnaround to keep their paper and pulp mills running smoothly and reliably.

Our toolkit includes conventional and advanced non-destructive examination (NDE) to pinpoint and analyze cracks, corrosion, erosion and other damage in recovery boilers, piping systems, digesters, kilns — every corner of your plant. And our services don’t stop there. Our team is also experienced with the mechanical lift devices inside and outside the facility that support your operations. As a full-service company, our experts can assist with outage planning on the front end and follow up inspections with repair recommendations and engineering solutions. Learn more.

Certified Welding Inspectors

Our Certified Welding Inspectors make sure all necessary repairs are completed satisfactory and that the repair contractor is performing repairs in conformance with the contract and applicable codes. Our team can also help locate materials and parts as well as assist in repair recommendations and follow up on inspections.

Industries Served

Types of Inspections

Boiler Visual Inspections

We service natural gas, biomass, petroleum, chemical recovery, and heat recovery (HRSG) boilers. We direct ultrasonic thickness mapping to more effectively target problem areas of a boiler and to ultimately cut down on unneeded data points.

Dye Penetrant (PT)

A widely applied and low-cost inspection method used to locate surface-breaking defects in all non-porous materials (metals, plastics, or ceramics). PT is used to detect casting, forging and welding surface defects such as hairline cracks, surface porosity, leaks in new products, and fatigue cracks on in-service components.

Eddy Current Testing

An electromagnetic testing method used in NDT to detect near surface anomalies in conductive material.

Hardness Testing

Hardness Testing is performed in the field with a small hand-held device and is used to gauge the strength of the metal. This is useful when determining the correct welding electrode to use during structural repair.

Magnetic Lift Off Testing

Measurement of lift-off can be used to assess the thermal insulation thickness and it has the potential to reduce the lift-off effect in pulsed eddy current testing.

Magnetic Particle Testing (MPT)

A non-destructive testing (NDT) process for detecting surface and slightly subsurface discontinuities in ferromagnetic materials such as iron, nickel, cobalt, and some of their alloys. The process puts a magnetic field into the part to facilitate flaw detection.

Metallographic Replications

A NDT method, duplicating the microstructure of a component in order to observe grain structure at high magnification.

Phased Array UT (PAUT)

An advanced method of ultrasonic testing used to determine component quality and detect flaws in manufactured materials, such as welds. In addition, it can be effectively used for wall thickness measurements in conjunction with corrosion testing. This NDT technique is minimally invasive, highly flexible, and offers multiple applications.

Positive Material Identification (PMI)

The analysis of a metallic alloy to establish composition by reading the quantities by percentage of its constituent elements. IIA has implemented X-ray fluorescence (XRF) which is a typical method for PMI.

Pulsed Eddy Current Testing

A non-destructive examination technique used for detecting flaws or corrosion in ferrous materials or measuring the thickness of objects. PEC is useful in situations where an object’s surface is rough or inaccessible. This method doesn’t require surface preparation or removing any insulation.

Ultrasonic Thickness Testing (UTT)

A volumetric non-destructive testing method that uses sound waves to propagate through an object.

Weld Procedure and Qualification (CWI)

Qualification to either American Welding Society (AWS) or American Society of Mechanical Engineers (ASME) standards through Certified Welding Inspectors (CWI) with mobile capabilities for your convenience.

Visual & Optical Testing

For DA tanks, steam turbines, fans, pressure vessels, high energy piping, stack/tower, etc. We have highly skilled employees that will inspect for indications such as cracks, corrosion, erosion, damage, and structural integrity.

Engineering Capabilities

Additional Resources

Plant Services Summary Sheet - Industrial Inspection & Analysis (IIA) is the go-to professional providing safe, quality inspections for outage and maintenance needs across North America including plant services. IIA’s breadth… Read More
IIA’s Plant Services, Power Plant Video - IIA's Plant Services division does everything from recovery boiler inspections, routine inspections, mechanical inspections, lifting inspections, and more. Read More

Certifications and Guidelines

  • All Certifications Based on Guidelines in SNT-TC-1A and CP189
  • Texas Department of State Health Services – Radioactive Materials Licensing (MC 2835)
  • New Mexico Environment Department Radioactive Material License
  • In Line Inspection Validation
  • American Welding Society
  • Pressure Equipment Directive 2014/68/UE (European Certification)
  • Pressure Equipment Regulations 1999
  • ASNT Level III