Structural Integrity Associates logo

Metallurgical Lab – Industries

SPECIALIZED ANALYSIS

SPECIALIZED ANALYSIS

Structural Integrity has been providing services to the power generation industry since our founding in 1983. Our Materials Laboratory provides metallurgical services to hundreds of power industry clients, and often works in support of SI’s various engineering groups. At SIA, we have the ability to combine engineering principles across multiple disciplines (metallurgical, mechanical, chemical, etc.) to ensure clients receive the most accurate and comprehensive results and recommendations in the industry. We work with power industry OEMs and owners/operators and have performed thousands of metallurgical analyses of component failures from power plants throughout the world. SIA is well known for helping clients assess damage mechanisms, determine failure root causes, and provide successful, cost-effective asset management solutions. Typical components include:

  • Boiler Tubes
  • Turbine Components
  • Piping
  • Valve Components
  • Rotating Equipment Parts
  • Welds
  • Bolts/Fasteners
  • Structural Components
  • Metallic Hoses
  • Headers/Vessels
  • Gears/Bearings
  • Shafts and Pins
Petrochem/Process Plants

Petrochem/Process Plants

The chemical processing industry covers a broad range of manufacturers and processes, and numerous chemical substances and products. SIA’s scientists, engineers, and technicians have many years of experience evaluating components from petrochem and process facilities, from rotating equipment to furnace tubing to exotic alloy parts in specialty processes. In addition, SIA’s background in power often comes into play in support of electrical and steam generating systems within these facilities. Our knowledge also encompasses common equipment and components, such as fans, pumps, fasteners, shafts, structural sections, welds, and many other plant components.

Oil & Gas

Oil & Gas

SIA’s Materials Laboratory supports the oil and gas transmission pipeline industry by performing a variety of metallurgical testing and analyses on damaged pipe and equipment. Our knowledge of pipeline manufacturing history, longitudinal seam and butt weld issues, and common corrosion mechanisms allows us to effectively support clients in the oil and gas transmission industry. In many cases, our metallurgists coordinate directly with engineers from our Oil & Gas Pipelines division to provide metallurgical testing and field support related to material verification and assessment.

General Industry

General Industry

The failure analysis process is essentially a standard methodology for assessing damage mechanisms and causative factors. SIA’s Materials Laboratory staff applies this process within a variety of general industrial environments related to manufacturing facilities and products, construction sites and equipment, and commercial property assets. Our materials expertise is often applied to failures involving equipment and components that are common to multiple industries, including fans, pumps, piping and tubing, fasteners, shafts, structural sections, welds, etc. Industries supported include:

  • Pharmaceuticals
  • Architectural and Engineering
  • Consumer Products
  • Food
  • Medical/Biomedical
  • Mining
  • Metal/Material Processing
  • Government
Insurance

Insurance

SIA’s independent scientists and engineers can provide technical support to claims adjusters evaluating complex losses. Our experience can be leveraged to understand the cause and extent of damage to industrial components or facilities. Our staff of metallurgical experts understands the importance of assessing damage and failures in the framework of multi-party investigations, and, when necessary, our technicians can provide independent laboratory testing services under the direction of non-SI metallurgists and consultants.

Legal Support

As an independent laboratory with extensive expertise in component evaluation, failure analysis, and materials engineering, SIA offers litigation support services that range from providing technician and laboratory support to preparing and managing unique and complex test protocols with multiple parties present. SIA also has engineers and scientists with expert witness experience, including giving deposition and trial testimony. Many of these individuals are licensed engineers and/or have advanced degrees.

CASE STUDIES

Go to Publication Page

Siemens 13.9m² Disk Bore Keyway Nondestructive Examination Re-development

SIA’s Holistic Approach to Rotor Life Assessments Structural Integrity Associates validated automated PAUT to achieve 100% disk bore/keyway coverage on Siemens 13.9 m² rotors—within a predictable five-day outage—supporting defensible life assessments without de-stacking.   INTRODUCTION The Siemens retrofit 13.9 m² rotor is a 1,800 RPM double-flow, low-pressure (DFLP) turbine rotor commonly used by nuclear utilities for power generation. This rotor is a built-up design, meaning it has a shaft with three shrunk-on wheels (or disks) per flow (at each end). 

Learn More

News & Views Issue 56 is here, and it’s one of our most wide-ranging issues yet.

The cover of this issue features a longstanding inspection challenge in nuclear power: achieving full ultrasonic coverage of shrunk-on disk bore and keyway regions on a Siemens 13.9m² low-pressure turbine rotor — without de-stacking the rotor. SIA redeveloped its automated phased array ultrasonic testing protocol using advanced CAD modeling and simulation, achieving 100 percent disk bore coverage across all six disks within a predictable five-day outage. The validated protocol supports defensible rotor life assessments for nuclear utilities. Issue 56 also

Learn More

SI Solutions, LLC Acquires Radiological Solutions, Inc., Adds to Nuclear Energy Capabilities

February 2, 2026 SI Solutions, LLC Acquires Radiological Solutions, Inc., Adds to Nuclear Energy Capabilities HUNTERSVILLE, NC – SI Solutions, LLC (“SIS”), through its advanced engineering division, Structural Integrity Associates, Inc. (“SIA”), today announced its acquisition of Radiological Solutions, Inc. (“RSI”), a trusted nuclear engineering partner specializing in advanced plant chemistry, radiological controls, radiation protection, and operational performance support. RSI brings deep technical expertise in water chemistry optimization, gamma scanning, radiological dose management, emergency preparedness, and the design of specialized

Learn More

Search...