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# Welding & Joining Management Group: Welding & Joining Management Group (WJMG), located at 3756 Monarch Street, Frederick, CO 80516, is a Colorado-based independent metallurgical and welding services firm specializing in forensic metal investigations, welder certification, mechanical testing, nondestructive testing (NDT), instrument validation, and code/compliance support. With over 35 years of industry experience, WJMG serves contractors, fabricators, owners and legal teams with expert witness consultation, failure analysis, welding inspection, ASTM/ASME/AWS code compliance, and training through its WJMG Institute. Operating Monday through Saturday (7 a.m.-5 p.m.), WJMG combines state-of-the-art equipment—including SEM, Keyence microscopy, Niton XLT, and advanced hardness testing—to deliver reliable, precise materials and welding analysis for construction, infrastructure, manufacturing and litigation support.

## Sitemaps
[XML Sitemap](https://wjmg.com/sitemap_index.xml): Includes all crawlable and indexable pages.

## Posts
- [Safety in Welding: Why Fume Control, Ventilation, and PPE Matter](https://wjmg.com/safety-in-welding/): Safety in welding starts long before a weld is completed. While skill, technique, and code compliance are important, the work environment around the welder matters just as much. Welding, soldering, brazing, and joining processes can create fumes, gases, heat, and exposure risks that affect workers directly involved in the task as well as people nearby. That is why safety should be approached as a complete workplace responsibility, not just an individual precaution.
- [Weld Failure Analysis: How Experts Determine the Root Cause](https://wjmg.com/weld-failure-analysis/): Weld failure analysis plays a critical role when a welded component does not perform as expected. Whether the issue involves a structural weld, pressure system, tank, pipeline, vehicle component, or fabricated assembly, identifying the true cause of failure is essential for safety, compliance, and long-term reliability. Rather than relying on assumptions, this process provides a structured way to understand what happened, why it happened, and how similar issues can be prevented moving forward.
- [How Chemical Analysis Helps Prevent Material Mix-Ups Before Fabrication Problems Start](https://wjmg.com/chemical-analysis-metal-testing/): Chemical analysis can play a critical role long before a part fails or a fabrication issue becomes expensive. In metal fabrication, repair, and forensic investigation, it is easy to assume the material in front of you is exactly what the paperwork says it is. But when the wrong alloy ends up in a weldment, assembly, or repair, the consequences can affect performance, code compliance, and long-term reliability. That is why it is often one of the smartest steps a company can take before moving further into production.
- [NDT Written Practice: The Compliance Document That Protects Your Company](https://wjmg.com/ndt-written-practice-welding-compliance/): An NDT written practice is one of the most important documents supporting any nondestructive testing program. While it often sits behind the scenes, this document defines how inspection personnel are trained, qualified, certified, and evaluated. When one is missing, outdated, or poorly written, companies can face audit findings, rejected work, or serious challenges after a failure investigation.
- [Hardness Testing for Welds: What It Indicates (and What It Doesn’t)](https://wjmg.com/welding-and-joining-technology/): In welding and joining technology, hardness testing is one of the quickest ways to check how a weld and its heat affected zone reacted to heat input, cooling rate, and any heat treatment. It can flag areas that became unusually hard, confirm repeatability across multiple joints, and point you toward the right follow up test. However, the trap is treating hardness like a pass or fail score. It is a useful indicator, not a full verdict.
- [Common Mistakes That Cause Welding Certification Test Failures — And How to Avoid Them](https://wjmg.com/welding-certification-test-mistakes/): Achieving your welding certification can open doors in structural, pipe, aerospace and other welding environments. But many welders face setbacks when the test doesn’t go as planned. At WJMG, we believe understanding common pitfalls is key to turning your welding certification attempt into a success. Here are the typical mistakes we see — and how you can avoid them.
- [What Is Bolt Testing? A Comprehensive Overview](https://wjmg.com/what-is-bolt-testing/): In the world of industrial quality assurance and structural integrity, bolt testing plays a pivotal role. At WJMG Forensic Metals Experts, every fastener is evaluated to ensure it performs under real-world demands. But what exactly is bolt testing, why does it matter, and how does it fit into a full mechanical and metallurgical testing program?
- [Unlock Your Welding Career: Premier Welding Training in Denver](https://wjmg.com/premier-welding-training-in-denver/): If you’re considering a career in welding or looking to advance your existing skills, welding training in Denver is one of the smartest investments you can make. Welding continues to be in high demand across Colorado and the nation, with industries ranging from construction and aerospace to energy and manufacturing seeking skilled and certified welders.
- [Stress & Strain: When to Use Microhardness, Stress Relief, and Heat Treating in Mechanical Testing](https://wjmg.com/mechanical-testing-services-wjmg/): In welding and fabrication, the quality of your finished product depends on more than just a clean weld bead. Beneath the surface, invisible stress, hardness variations, and microstructural changes can weaken performance. That’s where mechanical testing becomes essential.
- [Why Metallurgical Testing Matters: The Hidden Costs of Welding Non‑Compliance](https://wjmg.com/why-metallurgical-testing-matters/): When most people think about welding, they picture sparks flying and metal fusing under heat. But behind every weld lies something even more important: metallurgical testing. It’s not just about checking boxes for compliance—it’s about protecting your people, your assets, and your bottom line.
- [Understanding Welding Microscopes: A Key Tool in Weld Inspection and Forensic Analysis](https://wjmg.com/understand-welding-microscopes/): When it comes to ensuring the quality and safety of welding operations, precision is paramount. Whether it's for routine inspection, failure analysis, or forensic investigations, welding microscopes are essential tools for professionals in the welding and metallurgical fields. At Welding & Joining Management Group (WJMG), we understand the importance of advanced imaging techniques, such as welding microscopes, in assessing weld integrity and uncovering critical details that might otherwise go unnoticed. In this blog, we’ll explore the role of welding microscopes in the industry, their capabilities, and how they help ensure high standards in welding applications.
- [What Is Forensic Welding](https://wjmg.com/what-is-forensic-welding/): When welds fail, the consequences can be severe—leading to costly repairs, legal disputes, and even catastrophic structural failures. That’s where forensic welding comes in. This specialized field of metallurgy and engineering focuses on investigating and determining the causes behind weld and metal failures. Whether used in court cases or to improve future welding practices, forensic welding plays a vital role in ensuring safety, accountability, and quality control in industries reliant on welded structures.

## Pages
- [Lunch & Learn Training](https://wjmg.com/lunch-learn-training/): At WJMG, our goal is to support welders who have the drive, mindset, and personal commitment to advance their careers.
- [WJMG Blog](https://wjmg.com/about-wjmg/wjmg-blog/): WJMG Blog
- [Metals and Welding Expert](https://wjmg.com/expert-witness/expert-consultant-services/): When it comes to telling it like it is, in plain, easy to understand English, Dr. Grantham is the obvious choice. His gentle yet commanding style conveys his knowledge and professionalism, allowing jurors to easily comprehend the expert forensic findings of his report. Dr. Grantham has been involved in several multi-million dollar suites involving welding and metal failures for both the plaintiffs as well as defendants.
- [Non-Disclosure Agreement](https://wjmg.com/services/safety-health/non-disclosure-agreement/): This Agreement is made and entered into as of this 30th day of September 2021, (referred to as the "Effective Date") by and between Welding & Joining Management Group, a Colorado corporation, acting by and through Jesse A. Grantham, Enterprises, Inc., having a place of business at 3756 Monarch Street, Frederick CO 80516, U..S.A. (referred to as "WJMG"), and "Company"  having a place of business (referred to as "Company"); both of whom are also referred to individually as the "Party" or collectively as the "Parties".
- [Quality Management System](https://wjmg.com/services/safety-health/quality-management-system/): The list of references are used for guiding a QMS but are not limited to only theses Items.
- [Written Practice](https://wjmg.com/services/nondestructive-testing/written-practice/): The field of Nondestructive Testing (NDT) is a very broad, interdisciplinary field that plays a critical role in assuring that structural components and systems perform their function in a reliable and cost-effective fashion. NDT technicians and engineers define and implement tests that locate and characterize material conditions and flaws that might otherwise cause planes to crash, reactors to fail, trains to derail, pipelines to burst, and a variety of less visible, but equally troubling events. These tests are performed in a manner that does not affect the future usefulness of the object or material. In other words, NDT allows parts and materials to be inspected and measured without damaging them. Because it allows inspection without interfering with a product's final use, NDT provides an excellent balance between quality control and cost-effectiveness. Generally speaking, NDT applies to industrial inspections. While technologies are used in NDT that are similar to those used in the medical industry, typically nonliving objects are the subjects of the inspections. 
- [Microbiologically Induced Corrosion](https://wjmg.com/services/chemical-analysis/microbiologically-induced-corrosion/): Microbiologically induced corrosion is not in itself a form of corrosion, but rather a process that can influence and even initiate corrosion. It can accelerate most forms of corrosion, including uniform corrosion, pitting corrosion, crevice corrosion, galvanic corrosion, intergranular corrosion, dealloying, and stress corrosion cracking. MIC deteriorates pipes, tanks or vessel surfaces by pitting corrosion. Microbiologically induced corrosion can degrade or cause to fail many different types of system. The ultimate effect is the premature failure of metal components. To understand the causes and effects, it is necessary to understand the chemical, metallurgical and microbiological aspects of microbial corrosion were WJMG can preform all the test necessary. 
- [Optical Emissions Spectrometer](https://wjmg.com/services/chemical-analysis/optical-emissions-spectrometer/): WJMG has an ARL 3460 Optical Emission Spectrometer (OES) that can detect element composition in base metal or weld metal in materials such as carbon steel, stainless steel, aluminum, copper, hastelloy, and any other types of alloy. If the sample of choice is metal fillings, wire, or small samples WJMG can produce a sample using their eclectic ark furnace. 
- [Niton XLT](https://wjmg.com/services/chemical-analysis/niton-xlt/): WJMG has an Niton XLT element analysis testing equipment that can detect element composition in base metal or weld metal in materials such as carbon steel, stainless steel, aluminum, copper, tool steel, and any other types of alloy. This analyzer does not require a sample to be removed from a part to test and identify the material. 
- [Tensile Testing](https://wjmg.com/services/mechanical-testing/tensile-testing/): WJMG has three tensile / compression machines ranging in size from 10 lbf to 200,000 lbf (pound force) that can test any part you may come need. WJMG has the ability to produce reduces section tensile bars and round bars.  An axial tensile test load is put upon to find the engineering stress and strain then converted to true stress and strain after test is complete if required by costumer.
- [Mounting, Etching, Grain Size](https://wjmg.com/services/mechanical-testing/mounting-etching-grain-size/): WJMG the ability to mount samples using cold techniques for large specimens or hot techniques for smaller specimens. This is helpful for macros and hardness testing to insure a parallel surface when doing Vickers, Rockwell.  
- [Material Test Report](https://wjmg.com/services/mechanical-testing/material-test-report/): WJMG can offer metals testing to find out the type/grade of material. 
- [Hydrostatic Testing](https://wjmg.com/services/mechanical-testing/hydrostatic-testing/): Hydrostatic testing is used to determine if a vessel can safely hold a specific amount of pressure on welded joints and flanges connections. It can also be used for pipe lines to insure no leaks are present in welded joint regions. WJMG can conduct hydrostatic testing at pressures ranging from 10 psi to 35,000 psi. 
- [Heat Treatment](https://wjmg.com/services/mechanical-testing/heat-treatment/): WJMG has the capability to heat treat your parts for annealing, normalizing, stress relieving, post weld heat treat, tempering and hydrogen bake-out. After process is complete WJMG can preform metals testing on your parts. Testing can be preformed to check hardness, tensile straight, chemical analysis.
- [Hardness Testing](https://wjmg.com/services/mechanical-testing/hardness-testing/): Vickers hardness and Knoop hardness testing can both be conducted at WJMG facility in accordance with AWS, ASME, API welding codes, and NACE MRO0175.
- [Charpy Impact Testing](https://wjmg.com/services/mechanical-testing/charpy-impact-testing/): Charpy V-notch (CVN Testing) is used to determine the impact properties of a particular material at a specific temperature. WJMG can conduct impact testing at temperatures ranging over 500 degrees Fahrenheit to negative 320 degrees Fahrenheit. 
- [Bolt Testing](https://wjmg.com/services/mechanical-testing/bolt-testing/): WJMG can conduct bolt testing using tension or torque to validate the minimum values required for a specific bolt. An axial tensile test load is put upon to find the engineering stress and strain then converted to true stress and strain after test is complete. 
- [Bend Test](https://wjmg.com/services/mechanical-testing/bend-test/): WJMG has the capability to preform bend testing in accordance with ASTM E290. As for AWS, API, and ASME welding codes WJMG has the dye and plungers needed to preform guided bend test for welder qualification. 
- [Stereo Microscope](https://wjmg.com/services/microscopy/stereo-microscope/): WJMG currently has a variety of stereo microscopes that offers a magnified image to both eyes to provide a detailed imagery. It is very helpful in visualizing surface features of samples. We offer a range of stereo microscopes that have various magnifications and light sources. While these microscopes have the capability of photographic imaging.
- [Keyence Microscope](https://wjmg.com/services/microscopy/keyence-microscope/): At Welding & Joining Management Group (WJMG), precision and clarity are central to our forensic and metallurgical services. To support our mission, we proudly utilize the Keyence Microscope, specifically the advanced Keyence 5000 digital microscope system (Model VHX-5000). This high-performance tool allows us to deliver accurate, high-resolution imaging and detailed documentation for a wide range of materials and surfaces.
- [Scanning Electron Microscope](https://wjmg.com/services/microscopy/scanning-electron-microscope/): Secondary Electron Imaging (SEI):Secondary Electron Imaging creates a high-resolution, high depth-of-field image and gives excellent surface definition of the sample. This is good for imaging purposes to see fracture surfaces, surface features, particle sizes, porosity, or lack of fusion. 
- [WJMG Team](https://wjmg.com/about-wjmg/wjmg-team/): Welding & Metals Forensic Expert
- [Forms](https://wjmg.com/about-wjmg/forms/): Forms Verification Work Request FormDownload Work Request FormDownload Welder Continuity Form for IndividualsDownload Welder Information Intake SheetDownload
- [Safety & Health](https://wjmg.com/services/safety-health/): Welding processes that develop fumes should be equipped with effective exhaust hoods, connected to an effective exhaust system. An interlocking device should be installed to link the machine's power supply and the exhaust system to prevent the operation of machines without the exhaust system operating.
- [Instrument Validations](https://wjmg.com/services/instrument-validations/): WJMG performs validation and verification of industrial instruments,  NDT equipment, measuring devices services to our clients. Instead of shipping your instrument and waiting weeks for its return, why not bring it to someone locally that you know and trust!
- [Nondestructive Testing](https://wjmg.com/services/nondestructive-testing/): Our Newly redesigned NDT Lab is fully stocked and equipped to perform Magnetic Particle (MT) Dye Penetrant (PT) Ultra-sonic (UT) and X-ray Fluorescence (XRF) testing on small and medium sized parts of any volume. 
- [Chemical Analysis](https://wjmg.com/services/chemical-analysis/): WJMG has a Energy Dispersive X-Ray Detector (EDX) available for determining element analysis on small regions of interest on your parts. This is very helpful for determination of failure regions chemical properties of fractured assembly. Backscatter can also be used to help show the different element regions in the fractured assembly.
- [WJMG Institute](https://wjmg.com/services/wjmg-institute/): NDT Training includedAWS-CWI, CWE, CRI, Level III earn PDH Certificate3756 Monarch Street, Frederick CO 80516, 303-451-6759
- [Mechanical Testing](https://wjmg.com/services/mechanical-testing/): Our CVN Charpy Impact Machine is NIST verified annually.  We're able to provide cold condition testing down to -320° and generally have next day turn around on all of our material testing.
- [Welder Certification](https://wjmg.com/services/welder-certification/): Welder Certification simply means that the welder has demonstrated proficiency in the type of welding that will be performed at the job site using the procedures outlined. The weld must be witnessed by a WJMG Certified Welding Inspector (CWI), then the paper is sent to the employer or Project Manager.
- [Microscopy](https://wjmg.com/services/microscopy/): WJMG has a Scanning Electron Microscope (SEM) available for detailed images of any metallic surfaces. With magnification capabilities up to 100,000X and a large stage allowing for an array of samples. This allow for irregular surfaces from fracture samples to be closely examine. Equipped with multiple detectors such as energy dispersive X-ray (EDX) silicon drift, and backscatter.
- [Contact Us](https://wjmg.com/contact-us/): 3756 Monarch StreetFrederick, CO 80516
- [About WJMG](https://wjmg.com/about-wjmg/): At Welding & Joining Management Group (WJMG), we take pride in being a nationally recognized authority in welding and metallurgical consulting, forensic investigations, and nondestructive testing. Since 1978, WJMG has served as a trusted partner for clients across industries, specializing in comprehensive welding code consulting, contract compliance, and innovative welding process applications.
- [Services](https://wjmg.com/services/)
- [Expert Witness](https://wjmg.com/expert-witness/): When it comes to telling it like it is, in plain, easy to understand English, Dr. Grantham is the obvious choice. His gentle yet commanding style conveys his knowledge and professionalism allowing jurors to easily comprehend the expert forensic findings of his report. Dr. Grantham has been involved in several multi-million dollar suits involving welding and metal failures for both the plaintiffs as well as defendants.
- [Home](https://wjmg.com/): For over 50 years, WJMG's dedicated team of industry-leading professionals has specialized in Forensic Metal Investigations, Welding, Code Compliance, Metallurgy, and Nondestructive Testing.