Carbon & Sulfur Determination in Steel Plants and Foundries

Different methods are applied to measure C/S concentrations in steel, iron-based products, or in typical foundry products, such as ferro chromium. Among them are multi-element techniques like spectrometry or specialized carbon/sulfur analysis.

Effective Quality Control of Steel and Iron Products with Combustion Analysis

The element concentration of carbon (C), sulfur (S), hydrogen (H), nitrogen (N), and oxygen (O) in iron products, such as steel, have a significant influence on material properties like ductility, brittleness, or hardness. Hence, reliable determination of the C, H, N, S, O contents is a routine quality control task in steel and iron production. This article explores the application fields and advantages of elemental analyzers, which are also known as combustion analyzers, in the steel industry.

Elemental Analysis of Metal Powders and Metal Parts Produced by Additive Manufacturing

Additive manufacturing is becoming an increasingly established production technology. However, as it is still new, the required process steps have not been uniformly defined yet. There are, for example, no industry-wide standards describing the quality control process. Among the metal powders used for additive manufacturing are different types of steel and titanium. To check the quality and purity of these raw materials, suitable processes need to be implemented. The content of various “foreign” elements, for example, should be closely monitored to ensure a high-quality end product.

Ensuring high quality in the additive manufacturing process

Additive Manufacturing and Powder Injection Molding offer great potential - but to make sure that quality and cost of the manufactured parts are adequate, it is not only necessary to monitor the actual production process but also previous and subsequent steps.

Metal Powder and Feedstock Analysis with the ELTRA ELEMENTRAC Series

The new DIN EN ISO /ASTM 52907 from 2020 (Additive manufacturing- Feedstock materials-Methods to characterize metal powders) lists the following technical parameters to characterize the quality of metal powder: I Particle size distribution I Chemical composition I Characteristic densities I Morphology I Flowability I Contamination I (Packing, handling, storage) This article focusses on the chemical analysis of metal powders, especially the measurement of the elements oxygen, nitrogen, hydrogen as well as carbon and sulfur, and describes the current status of elemental analysis.

O/N and C/S Analysis of Battery Components

Regardless of the dimensions of a battery, its application or its configuration as primary (not rechargeable) or secondary battery (rechargeable), a chemical analysis for carbon, sulfur, oxygen or nitrogen may be required for single components. A reliable and precise measurement of C/S and O/N in selected samples over a wide concentration range is possible with elemental analyzers like the ELEMENTRAC CS-i and ONH-p 2.

O/N/H Analysis in Raw Materials for Aircraft Components

Raw materials used in aircraft components need to fulfill a number of requirements. To verify the requested material properties and ensure maximum safety, each component is submitted to thorough testing. Part of the quality control process involves testing of mechanical properties, like tensile strength, or elasticity but also the determination of the chemical composition. One important part of chemical analysis of materials used in the aerospace industry is always the measurement of the gases oxygen (O), nitrogen (N) and hydrogen (H) which have a significant influence on the material properties.

Quality Control of Coal with Elemental Analyzers

Correct and reliable analysis of coal, coke and their combustion residues is challenging because a variety of standards have to be considered and different types of analytical equipment are used in a standard coal laboratory. This article gives an overview of relevant standards, methods and suitable equipment.

Standard-compliant element analysis of silicon carbide and mixtures containing silicon carbide with combustion analyzers

Elemental analyzers are important tools for quality control of a wide range of products. A variety of matrices, such as ceramics, coal, steel or soil, can be analyzed for their element concentrations with different types of instruments. The product range of Eltra GmbH, located near Düsseldorf, Germany, comprises analyzers for C, H, N, S, O and thermogravimetry which allow for the standard-compliant determination of carbon in various chemical bondings, as well as oxygen and nitrogen in SiC and in materials containing SiC. The requirements which have to be fulfilled for a standard-compliant analysis may, however, vary greatly, depending on the desired parameters.

O/N- und C/S-Analyse von Batteriekomponenten

Das moderne Leben hängt stark von (mobiler) elektrischer Energie ab, die von Batterien bereitgestellt wird. Kein Mobiltelefon, kein Notebook, kein Tablet und kein Auto könnte ohne eine funktionierende Batterie betrieben werden. Seit Allesandro Volta zum ersten Mal eine Primärbatterie gebaut und eingesetzt hat, wurde eine große Anzahl von Batterien unterschiedlicher chemischer Zusammensetzung und Größe entwickelt, die für eine Vielzahl von Anwendungen verwendet werden: von der Taschenlampe bis zur Speicherung von überschüssigem Strom aus dem Netz .