Alloy composition analysis
Alloy composition analysis is an essential service for ensuring the quality, reliability, and traceability of metallic materials used in industry.
At INFINITIA, we offer our clients access to a specialized industrial laboratory where we carry out precise studies of the chemical composition of metals, including zinc and other critical elements, using state-of-the-art equipment and internationally recognized methods.
Our specialists work with advanced techniques that enable both the identification of alloys and the detection of impurities or deviations from technical specifications, providing key value in processes such as quality control, supplier selection, and new material development.
Thanks to this approach, at INFINITIA we help companies optimize their industrial processes and ensure the conformity of their products in highly demanding sectors such as automotive, aeronautics, and energy.
What is chemical and composition analysis in alloys?
The analysis of metal alloys consists of determining the nature and proportions of the chemical elements that make up a metal or metal combination. At INFINITIA, we apply various methodologies, including destructive and non-destructive techniques, to obtain comprehensive information about each sample.
For example, Optical Emission Spectrometry (OES) is used to quickly identify and quantify elements in industrial processes, while spectrometers enable positive identification of materials, and X-ray Fluorescence (XRF) allows non-destructive testing of surfaces.
For highly sensitive studies, we use Inductively Coupled Plasma Mass Spectrometry (ICP-MS), which is essential for detecting traces and impurities in critical alloys. We also use Scanning Electron Microscopy with Microanalysis (SEM-EDX) to study the microstructure of parts and microstructural testing to analyze phases, grain size, and internal defects.
In this way, at INFINITIA we not only characterize the elemental composition, but also understand the structural behavior of each alloy under real service conditions, using advanced analytics.
Benefits of alloy composition analysis
Among the main benefits of this service is the ability to ensure regulatory compliance and the quality standards required in each industrial sector. At INFINITIA, we have developed projects where comparative analysis of alloys has enabled our clients to detect differences between their parts and those of their competitors, leading to design improvements and cost reductions.
The analysis also allows new raw material suppliers to be validated, production batches to be checked for compliance, and failures associated with impurities or deviations in composition to be prevented using advanced analysis techniques.
In addition, thanks to the use of technologies such as ICP-MS or SEM-EDX, we are able to detect microscopic defects or contamination that could compromise the durability and performance of metal components in critical applications, thanks to rapid and accurate analysis.
Alloy and metal analysis at INFINITIA
At INFINITIA, we perform chemical analysis of metals and alloys, combining scientific rigor, technical expertise, and an applied vision of the industrial sector through innovative analysis techniques. Our laboratory is equipped with analyzers and spectrometers to guarantee accurate results, including OES, XRF, ICP-MS, and SEM-EDX microscopy, allowing us to select the most appropriate technique for the objective of the study.
In addition, we carry out material analyses to ensure the integrity of components, metallographic analyses and microstructural tests that complete the characterization of materials, offering a comprehensive view. The process is always tailored to the customer’s needs, whether for reverse engineering, material optimization, or failure investigation.
Thanks to our experience in material characterization and forensic engineering applied to the evaluation of failures in steel alloys, we detect critical parameters before failures occur, providing practical and reliable solutions to the industry.
Types of Metal and Alloy Composition Analysis
At INFINITIA, we develop various alloy analysis tests to accurately assess the chemical, microstructural, and elemental composition, including positive identification of materials, of metals and metal combinations used in industrial products.
Our goal is to determine the exact nature of each alloy, optimizing its application, functionality, and service life.
Optical Emission Spectrometry (OES)
This type of test allows the elemental composition of alloys to be determined by analyzing the light emitted by the sample when it is electrically excited. It is commonly used in raw material reception control, material identification, and scrap classification. Although it is a destructive analysis, it is fast and highly accurate.
At INFINITIA, we apply it in sectors such as automotive and metallurgy to ensure that alloys meet the required technical specifications.
X-ray Fluorescence (XRF) Analyzer
X-ray fluorescence is a non-destructive technique that allows the elements present in an alloy to be identified and quantified without damaging the piece. At INFINITIA, we use it for routine quality control testing using a metal analyzer, verifying batch homogeneity and checking for deviations in metal compositions through analysis.
It is key in industries where material traceability is essential, such as aeronautics and power electronics.
ICP-MS is one of the most sensitive techniques for detecting traces and impurities in high-performance metal alloys. At INFINITIA, we apply it in sectors where maximum purity and compliance with strict regulations are required, such as the manufacture of medical, electronic, or aerospace components.
Although destructive, it allows contamination to be detected in parts per billion (ppb), ensuring the reliability of the material.
Scanning Electron Microscopy with Microanalysis (SEM-EDX)
SEM-EDX combines the microstructural study of an alloy with point elemental analysis. At INFINITIA, we use this technique for failure investigation, inclusion analysis, and heat treatment validation.
It allows us to observe phase distribution and the presence of internal defects, generating key information to prevent failures and optimize manufacturing processes.
Metallographic Analysis and Microstructural Testing
These tests allow us to study the corrosion resistance of different steel alloys, phase distribution, grain size, and structural defects in the alloys. At INFINITIA, we use cutting, polishing, and chemical etching techniques to characterize the microstructure of metals in detail.
This information is essential in projects involving casting and the development of new materials, material optimization, and the validation of heat treatments applied to industrial parts.
Applications of Alloy Composition Analysis
The analysis of metal alloys has strategic applications in multiple industrial sectors, from smelting to manufacturing. At INFINITIA, we help validate products, select raw materials, and anticipate potential failures under real-world conditions.
Thanks to the combination of techniques such as OES, XRF, ICP-MS, SEM-EDX, and metallographic analysis, we provide reliable information that enables companies to improve their competitiveness, reduce costs, and ensure regulatory compliance.
Automotive alloy composition analysis: metallic component validation for reliability and durability
In the automotive sector, alloys must meet demanding standards in terms of safety, mechanical strength, and durability under severe environmental conditions. Chemical composition is a critical factor in preventing failures associated with fatigue, corrosion, or in-service degradation.
- Validation of special steels in structural components: composition control to ensure performance under fatigue and cyclic loading.
- Comparison of metallic coatings using XRF: selection of alternatives with higher corrosion resistance under salt spray conditions.
- Detection of deviations in aluminum alloys: identification of variations that may compromise thermal and mechanical performance in components such as engine blocks.
At INFINITIA, we have supported automotive component manufacturers in optimizing their alloys, ensuring the durability of critical parts and reducing claims related to in-service failures.
Aerospace alloy composition analysis: purity, trace elements and extreme reliability under critical conditions
Aerospace applications require exhaustive control of alloys to ensure maximum purity and reliability. The presence of trace elements or microscopic defects can compromise performance under extreme conditions.
- ICP-MS testing: detection of trace unwanted elements in nickel and titanium superalloys.
- SEM-EDX studies: evaluation of microscopic defects and inclusions in metallic alloys and aluminum components.
- Composition control in critical welds: validation of performance under extreme thermal variations.
These analyses allow aerospace companies to ensure that each component complies with strict international standards and withstands extreme operating conditions.
Energy and electronics alloy composition analysis: thermal stability and component performance
In the energy and electronics sectors, alloy composition is critical for thermal stability, dielectric strength, and component lifespan. Inadequate control can lead to premature failures or efficiency losses.
- Validation of conductive alloys: control of copper and aluminum used in transformers and electric mobility systems.
- Detection of contamination: analysis of metallic coatings in photovoltaic cells or batteries.
- Quality control of resins and encapsulants: through trace analysis and microscopy techniques.
A practical case developed at INFINITIA involved the evaluation of a batch of electrical connectors showing premature failures; composition analysis revealed deviations, allowing correction of supply and avoidance of production losses.
Construction and infrastructure alloy composition analysis: durability in aggressive environments and corrosion resistance
In construction, metallic materials are exposed to moisture, chemical agents, and high load conditions, requiring rigorous material testing. Composition and coatings are key factors in ensuring the service life of structures.
- Verification of structural steels: validation of composition in bridges, buildings, or power towers.
- Validation of anti-corrosion coatings: evaluation of effectiveness in exposed façades and structures.
- Study of welds and metallic joints: metallographic analysis to ensure resistance in aggressive environments.
At INFINITIA, we have worked with construction material manufacturers in selecting metallic coatings for infrastructures exposed to marine environments, significantly extending the service life of structures.
Medical device alloy composition analysis: biocompatibility, purity and regulatory compliance
Metal medical devices, such as surgical implants or instruments, require biocompatibility and absence of contaminants. Chemical composition is key to preventing adverse reactions and ensuring durability in physiological environments.
- ICP-MS testing: verification of purity in titanium alloys used in prostheses.
- SEM-EDX evaluation: detection of inclusions and defects in medical-grade stainless steel.
- Regulatory verification: compliance with standards such as ISO 10993-1 in implantable devices.
This enables our clients to ensure patient safety and the clinical effectiveness of their products.
Metallurgical industry alloy composition analysis: raw material quality control and supplier validation
In the metallurgical and manufacturing industry, alloy analysis enables quality control of production batches and validation of new suppliers. This control is essential to avoid deviations that impact cost or performance.
- Scrap classification and recycling: using OES and XRF, enabling proper material segregation and optimizing value recovery within the production chain.
- Approval of alternative suppliers: cost optimization without compromising quality.
- Comparative material studies: analysis between in-house and competitor components in reverse engineering and corrosion resistance projects.
In one project, a client in the capital goods sector requested a comparison of wear component compositions against those of a competitor. The analysis revealed a more efficient use of abrasion-resistant alloys, enabling redesign of their production and improving competitiveness.
The value of alloy analysis in modern industry
The analysis of metal alloy composition is a strategic tool for ensuring the reliability, quality, and competitiveness of industrial products. Throughout this article, we have seen how, thanks to techniques such as optical emission spectrometry (OES), X-ray fluorescence (XRF), inductively coupled plasma mass spectrometry (ICP-MS), scanning electron microscopy with microanalysis (SEM-EDX), spectrometer for metal analysis, and metallographic and material testing are fundamental to the quality control process, it is possible to accurately determine the nature of each alloy, identify impurities, and anticipate potential failures.
At INFINITIA we have an industrial laboratory equipped with cutting-edge technologies and a multidisciplinary team of specialists who apply these tests not only with scientific rigor, but also with a practical vision geared towards the needs of each company. Our goal is to help the industry make decisions based on reliable data: selecting suitable raw materials, approving suppliers, validating critical components, or improving competitiveness through reverse engineering.
The impact of this service is reflected in sectors as diverse as automotive, aeronautics, energy, construction, and medical devices, where controlling the composition of alloys is crucial to ensuring safety, durability, and regulatory compliance. In addition, current trends in advanced materials and sustainability make alloy analysis even more important, as it allows resources to be optimized and costs to be reduced without compromising quality.
Relying on INFINITIA for alloy composition analysis means having a partner that combines experience, technical precision, and a results-oriented approach. Our support in every project allows companies to anticipate problems, optimize their processes, and ensure that their products meet the highest quality standards.
Frequently asked questions about alloy composition analysis
When is an alloy composition analysis necessary?
Alloy composition analysis is necessary whenever there is uncertainty about the nature, quality or conformity of a metallic material. The most common scenarios are: qualification of a new supplier, batch changes with deviations detected on the production floor, failure analysis of metal parts in service, suspected material counterfeiting or substitution, raw material validation against customer specifications, and independent verification of mill test certificates.
Relying exclusively on supplier documentation does not guarantee that the actual batch meets the declared composition. At Infinitia we carry out this type of analysis both in one-off projects and as part of broader failure analysis or supplier validation processes, making technical decisions based on objective data before the problem impacts production or the end customer.
What are the consequences of not analysing the chemical composition of an alloy?
Failing to analyse the chemical composition of an alloy means accepting a technical and economic risk that typically surfaces in advanced stages of the product lifecycle: premature mechanical failures, unexpected corrosion, loss of in-service properties, galvanic incompatibilities or non-conformities detected by the end customer.
Without experimental data obtained through techniques such as OES, XRF or ICP-MS, decisions are based on documentary information that does not always reflect the reality of the supplied batch. We have seen this pattern in projects such as the failure analysis in production caused by deviations in galvanised steel batches, where an undetected composition variation caused systematic failures on the line. The additional cost associated with rework, scrap or claims is usually far higher than the cost of preventive analysis.
How do you choose the right technique to analyse an alloy?
The selection of technique depends on four variables: type of material (ferrous, non-ferrous, light alloys, refractories…), required precision level, nature of the technical problem and whether or not the sample can be destroyed. There is no universal technique: each method has different sensitivity, detection limits and applicability.
As a general guide:
- Optical Emission Spectrometry (OES): ideal for fast, quantitative analysis of steels, aluminium alloys and other metallic alloys, with good precision for both major and minor elements.
- X-Ray Fluorescence (XRF): non-destructive analysis, perfect for rapid alloy identification (PMI – Positive Material Identification) and on-site verification.
- ICP-MS / ICP-OES: essential for detecting traces and impurities at ppm or ppb levels.
- SEM-EDX: combined with microscopy for localised analysis of inclusions, point contaminations or thin layers.
At Infinitia we combine several techniques within our elemental analysis and chemical composition service to cover each case with the most representative method, avoiding unnecessary testing.
What is the difference between a standard analysis and a full alloy composition study?
A standard analysis is limited to determining the elemental composition using a specific technique (OES, XRF…) and verifying conformity against a standard or specification. It is useful when the question is binary: “does it comply or not?”.
A full metallic alloy characterisation study goes much further: it includes interpretation of results, microstructure study through metallographic examination, correlation with mechanical properties, comparative analysis between samples and, where applicable, integration with other metallic materials and alloy testing.
This comprehensive approach allows us to understand not only which elements are present, but also how they influence the real behaviour of the material in service. It is key in failure cases, alloy optimisation and reverse engineering, where isolated chemical data does not answer the customer’s technical question.
What does an independent verification guarantee that a supplier's material certificate does not cover?
A material certificate (mill test certificate, EN 10204 3.1 or 3.2) declares a theoretical composition for the batch, but does not guarantee that the part received meets those values. There are real cases of deviations, batch mixing, cross-contamination or even document forgery that can only be detected through independent verification.
Having an external technical team allows neutral verification of the actual alloy composition, detection of discrepancies against the certificate, and the issuance of an expert report with technical and, where applicable, legal value. This verification is common in counterfeit component detection processes and in material qualification testing, providing traceability and reducing technical risk.
Can alloys from different suppliers or competitors be compared?
Yes, comparative alloy analysis is one of the most in-demand applications in industrial settings. It allows identification of differences in alloying elements, impurities or microstructure between apparently equivalent materials, with a direct impact on performance, durability and cost.
This approach is common in alternative supplier qualification, cost reduction while maintaining performance, and competitive benchmarking. A clear example is our project on reverse engineering and alloy analysis to optimise performance and costs, where we characterised competitors’ alloys to identify improvement opportunities in our own product. We also work on cases such as comparative analysis of cookware through reverse engineering using the same methodology.
Why does an alloy that meets specification fail in service?
Because specifications define ranges of composition, not unique values, and within those ranges there can be variations that affect real behaviour. Small differences in elements such as C, Cr, Ni, Mo or S, as well as the presence of residual impurities (P, Pb, Bi…), can significantly modify strength, ductility, weldability or corrosion behaviour.
Furthermore, two heats with the same composition can have different microstructures depending on their heat treatment or forming process, which also affects performance. This is why, in projects such as failure analysis of metal parts in industrial assembly, we combine chemical analysis with microstructure studies and fractography to identify the true root cause of the failure.
Why do recurring failures appear in apparently correct metal parts?
Recurring failures usually have a systematic origin in the material or its process: compositions shifted within the admissible range, contamination from scrap mixing, lack of homogeneity between heats, segregations or non-uniform heat treatments.
Without rigorous analysis, it is common to apply “patch” solutions that do not eliminate the root cause. The combined use of analytical techniques and microstructural characterisation allows identification of repetitive patterns and confirmation of whether a systematic deviation exists. This is the approach we apply in forensic engineering projects to prevent production stoppages, where identifying the true origin of the problem is what differentiates a lasting solution from a temporary one.
Why do two identical parts behave differently?
Although two parts have the same design, supplier and material code, they can present real differences in chemical composition or microstructure that impact their behaviour. Variations in C, Cr, Si, Mn or N, or the presence of undeclared elements, can modify hardness, corrosion resistance or response to heat treatment.
Added to this is the effect of the manufacturing process: the same material can behave differently depending on prior deformation, welding or heat treatment. This is why we integrate chemical analysis with material characterisation techniques and, where applicable, with metal heat treatment analysis to explain the origin of divergent behaviour.
How does composition analysis help reduce industrial costs?
Composition analysis allows early detection of deviations, preventing non-conforming material from reaching production or the end customer, where the cost of a failure multiplies. Detecting an incorrect material before transformation eliminates costs associated with scrap, rework, warranties or line stoppages.
It also helps optimise specifications: clients often pay a premium for high-grade alloys when a more cost-effective alternative would fully meet the actual requirements. This is the approach we apply in projects such as high-temperature gas analysis to qualify a new steel supplier, combining technical rigour and cost efficiency. See more cases in worked projects.
How much does an alloy composition analysis cost?
The cost depends on three factors: analytical technique used (XRF, OES, ICP-MS, SEM-EDX…), number and type of samples and scope of the study (elemental quantification only, or full characterisation including microstructure, mechanical properties, etc.).
A quick XRF analysis to confirm an alloy type is very different from a combined OES + ICP-MS + metallography study for root cause analysis. At Infinitia we always size the analysis to the actual technical objective: we prioritise the most representative techniques for the problem, avoiding unnecessary testing and optimising the cost-to-value ratio for the client. If you would like an estimate tailored to your case, contact us and we will send you a technical and economic proposal.
How long does it take to get results?
Turnaround times vary depending on the technique and complexity of the study. Under standard conditions, typical timelines range from 1 to 4 weeks. Basic XRF or OES analyses sit at the lower end, while studies involving ICP-MS or full microstructural characterisation require more preparation and interpretation time.
For projects with tight deadlines, we offer an urgent quoting option that allows results to be delivered within 24–72 hours of sample receipt, without compromising the technical reliability of the report. This is the approach we regularly apply in failure analysis cases with an impact on production lines, where speed of decision-making is critical.
