--- type: "WebPage" title: "ASTM E1941 Testing" description: "Do you need to perform an analysis of refractory metals according to ASTM E1941? Securing metallic materials for the Aerospace & Defense sector with ASTM E1941 In the Aerospace, Space, and Defense (ASD) sectors, material mastery is not an option,..." resource: "https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/analysis-astm-e1941/" tags: ["EN", "pll_6989fc7aef360", "Arnaud JOUDRAIN Meta"] timestamp: "2026-04-22T09:12:08Z" published: "2026-02-09T15:48:56Z" language: "en" author: "Filab" --- # ASTM E1941 Testing ## Do you need to perform an analysis of refractory metals according to ASTM E1941? ### Securing metallic materials for the Aerospace & Defense sector with ASTM E1941 In the [Aerospace](https://filab.fr/en/sectors-of-activity/laboratory-analysis-aeronautics-aerospace.md), [Space](https://filab.fr/en/sectors-of-activity/laboratory-analysis-aeronautics-aerospace.md), and [Defense](https://filab.fr/en/sectors-of-activity/laboratory-analyses-tests-defense-security-sector.md) (ASD) sectors, material mastery is not an option, it’s a necessity. Even the slightest non-conformity can have major consequences on safety, performance, and regulatory compliance. [ASTM E1941](https://store.astm.org/e1941-10r16.html) meets this high standard. It defines a rigorous analytical framework for determining carbon content in [refractory and reactive metals](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/laboratory-for-analysis-and-characterization-of-refractory-alloys.md) an element whose concentration directly impacts microstructure and mechanical properties. At **FILAB**, we support manufacturers in the ASD supply chain with the characterization and testing of their materials according to ASTM E1941. Our goal is clear: to ensure the reliability of your technical and industrial decisions. ### ASTM E1941: a key challenge for refractory and reactive metals ### Carbon analysis according to ASTM E1941 The ASTM E1941 standard defines a standardized test method for the determination of carbon in reactive metals (Titanium, Zirconium...) and refractory metals (Tungsten, Molybdenum, Tantalum...) by combustion in an oxygen stream. It is specifically used to: - **Measure carbon content with high precision** (from ppm levels to percentages). - **Control the purity** and metallurgical quality of high-tech alloys. - **Verify compliance** with regulatory standards and client specifications. In the Aerospace and Defense industries, carbon is an interstitial element that has a direct impact on: - **Mechanical properties** (increased hardness, risk of embrittlement) - **Weldability** of components - **Service life** of parts subjected to high stress ASTM E1941 is therefore essential for material qualification, quality control (QC), supplier validation, or failure analysis following a non-conformity. ## FILAB, a laboratory tailored to Aerospace & Defense requirements ### An analytical park dedicated to ASTM E1941 testing Analyses performed under ASTM E1941 are particularly suited for titanium alloys and refractory metals used in these industries, such as **Titanium Grade 2, Ti-6Al-4V (TA6V)**, or Molybdenum. To meet these demands, **FILAB** provides its clients with state-of-the-art analytical techniques: [### OES](https://filab.fr/en/our-technical-resources/laboratory-analysis-oes-alloys.md) [### ICP](https://filab.fr/en/our-technical-resources/laboratory-analysis-icp-icp-ms-icp-aes.md) [### C/S Elemental Analyzer Induction Combustion](https://filab.fr/en/our-technical-resources/chons-laboratory-analysis.md) ### Dedicated material expertise services At **FILAB**, ASTM E1941 analysis is part of a comprehensive **material characterization** approach. We do not just produce results: we help you understand their impact on your materials, your processes, and your in-service performance. Our teams work on: Reactive and refractory metal alloys Materials subject to demanding specifications. Parts and samples from production, qualification, or field returns. ### Why Choose FILAB ? - **45 years** of recognized expertise in analysis and materials science - **Dual competence:** Chemistry / Materials - Specializing in **metallic alloys**and **critical applications** - **Customer qualification**: Safran, Dassault Aviation, and Framatome - **ISO 17025 Accreditation** regarding metallic alloys [Discover our accreditations](https://filab.fr/en/about-us/accreditations-en.md) Discover our metallurgical expertise ## Analysis of Iron, Aluminium, Molybdenum, Copper, Tin, Chromium, Titanium, Lead, Nickel, Zinc [Learn more](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory.md) ### Our analytical services based on ISO and ASTM standards for the ASD sector [Analysis according to ASTM E3061 standard](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/astm-analysis-e3061.md) [Analysis according to ASTM E1086 standard](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/astm-analysis-e1086.md) [Analysis according to ASTM E1019 standard](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/astm-analysis-e1019.md) [Analysis according to ISO 8287 standard](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/iso-8287-testing.md) [Analysis according to ASTM B213 standard](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/analysis-astm-b213.md) [Analysis according to ASTM B964 standard](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/astm-analysis-b964.md) [Analysis according to ISO 12154 standard](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/astm-analysis-iso-12154.md) [Analysis according to ASTM E1868 standard](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/astm-analysis-e1868.md) [Analysis according to ASTM E1409 standard](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/astm-e1409-analysis.md) [Analysis according to ASTM E415 standard](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/astm-analysis-e415.md) [Analysis according to ASTM E1251 standard](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/astm-analysis-e1086.md) [Analysis according to ISO 15350 standard](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/iso-15350-testing.md) [Analysis according to ISO 4935 standard](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/iso-4935-analysis.md) [Analysis according to ISO 4490 standard](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/iso-4490-analysis.md) [Analysis according to ASTM B527 standard](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/astm-analysis-b527.md) [Analysis according to ASTM B923 standard](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/astm-analysis-b923.md) [Analysis according to ASTM A269 standard](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/astm-analysis-a269.md) ### Our analytical services in accordance with MIL requirements for the ASD sector [Analysis according to MIL-T-9047 requirement](https://filab.fr/en/sectors-of-activity/laboratory-analyses-tests-defense-security-sector/mil-t-9047-analysis.md) [Analysis according to MIL-A-6088 requirement](https://filab.fr/en/sectors-of-activity/laboratory-analyses-tests-defense-security-sector/mil-a-6088-analysis.md) [Analysis according to MIL-DTL-14067 requirement](https://filab.fr/en/sectors-of-activity/laboratory-analyses-tests-defense-security-sector/mil-dtl-14067-analysis.md) [Analysis according to MIL-DTL-5002 requirement](https://filab.fr/en/sectors-of-activity/laboratory-analyses-tests-defense-security-sector/mil-dtl-5002-analysis.md) [Analysis according to MIL-A-22771 requirement](https://filab.fr/en/sectors-of-activity/laboratory-analyses-tests-defense-security-sector/mil-a-22771-analysis.md) [Analysis according to MIL-S-22499 requirement](https://filab.fr/en/sectors-of-activity/laboratory-analyses-tests-defense-security-sector/mil-s-22499-analysis.md) [Analysis according to MIL-P-83348 requirement](https://filab.fr/en/sectors-of-activity/laboratory-analyses-tests-defense-security-sector/mil-p-83348-analysis.md) ### Our additional metallographic analysis [Micrographic analysis](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/laboratory-micrographic-examination.md) [Failure analysis](https://filab.fr/en/our-services/our-expertise-services/laboratory-analysis-failures.md) [Chemical composition analysis](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/metallic-alloy-analysis-laboratory.md) [Metallurgical analysis](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory.md) [Metallographic analysis](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/examination-metallographic-section-laboratory.md) [Elemental analysis](https://filab.fr/en/our-services/our-analysis-services/chemical-analysis-laboratory/laboratory-elemental-analysis.md) [Analysis of metallic alloys](https://filab.fr/en/analysis-of-metallic-alloys-in-the-laboratory.md) ### Accreditation This [Nadcap accreditation](https://filab.fr/en/about-us/accreditations-en/materials-testing-nadcap-laboratory.md) notably covers: ✔️ Chemical analysis (ICP-OES) of critical metallic alloys (Al, Fe, Ni, Ti) ✔️ Metallography An international recognition that confirms our commitment to quality and reliability for the most demanding applications, particularly in the aerospace sector. ![](https://filab.fr/wp-content/uploads/2026/04/PNG-bleu-e1775737225243-1024x446.png) [Explore our accreditations](https://filab.fr/en/about-us/accreditations-en.md) ## Our FAQ What materials does ASTM E1941 cover?  It primarily applies to **reactive metals** (Titanium, Zirconium, Hafnium) and **refractory metals** (Molybdenum, Tungsten, Tantalum, Niobium), as well as their respective alloys used in critical environments. What element is measured using ASTM E1941?  This standard provides for the **quantitative determination of carbon**. If present in excessive amounts, this element can alter the metal's crystal structure and significantly impair its **ductility**. Which analytical technique is used? ASTM E1941 relies on **combustion analysis** in an induction furnace under an oxygen stream. The carbon is converted into CO2, which is then measured by high-precision infrared (IR) detectors. In what industrial contexts should ASTM E1941 analysis be performed? - **Qualification** of raw material batches. - **Quality control** following **additive manufacturing** or heat treatment processes. - **Failure analysis** on parts exhibiting abnormal brittleness. - Support for **aerospace certification** dossiers. Why measure Carbon rather than Oxygen? While oxygen (covered by ASTM E1409) is the primary interstitial gas monitored for Titanium, carbon plays an equally decisive role. Monitoring carbon is essential to ensure the **absence of brittle carbides**, particularly in refractory metals and during high-temperature manufacturing processes. How to get a quote ? To request a quote, you can contact our team via our **contact form**, by **phone**, or by **email**. Simply send us your requirements (type of material, desired analysis, applicable standards, turnaround time, number of samples, etc.). We will then send you a personalized technical and commercial proposal within **24 to 48 hours**.