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Detection of the Carbon and Sulfur Content in Alloys by Carbon and Sulfur Analyzer (CAT#: STEM-EA-0012-ZJF)

Introduction

Carbon is generally considered to be the most important alloying element in steel and can be present up to 2% (although most welded steels have less than 0.5%). Increased amounts of carbon increase hardness and tensile strength, as well as response to heat treatment (hardenability). Increased amounts of carbon will reduce weldability.
Sulfur is usually an undesirable impurity in steel rather than an alloying element. In amounts exceeding 0.05% it tends to cause brittleness and reduce weldability. Alloying additions of sulfur in amounts from 0.10% to 0.30% will tend to improve the machinability of a steel.
It is for the above reasons that it is important to determine the carbon and sulfur concentrations in alloys.
We provide the detection of carbon and sulfur in a wide range of materials, including but not limited to: steel, aluminum, copper, titanium, nonferrous metals, ferroalloys, cast iron, alloys, coal, ash, carbides, casting core sand, ore, cement, minerals, lime, refractory, battery materials, gypsum, limestone, oil, soil, silicon, sand, slag, inorganic matter, ceramics, magnetic materials, catalysts, biomass, plant materials, rubber, tobacco, etc. If you have any requirements or questions. Don't hesitate to contact us.




Principle

Carbon and sulfur present in the sample are oxidized to carbon dioxide (CO2) and sulfur dioxide (SO2), and swept by the oxygen carrier through a heated dust filter, a drying reagent, and then through two infrared cells, where sulfur is detected as SO2. The gas flow continues past a heated catalyst, where carbon monoxide (CO) is converted to CO2 and where SO2 is converted to sulfur trioxide (SO3), which is subsequently removed by a filter. Then the CO2 is measured in up to two element selective IR cells. Finally, the combustion gas is led to the exhaust and the software calculates the resulting carbon and sulfur concentrations. The induction furnace is suitable for analyzing inorganic samples like steel, cast iron and ceramics, and the resistance furnace is used for combustion of organic samples like coal, coke or soil. The carbon and sulfur analyzer is a high-tech product that integrates optical, electrical, computer, and analytical technology into one.

Applications

Chemistry, plastics, coal, power plant, construction materials, engineering, electronics, commercial inspection, automobile industry, aviation, environment, recycling, agriculture, food industry, geology, mining, glass, ceramics, medicine, pharmaceuticals, steel, metallurgy, new energy, nuclear industry, petrochemical industry, scientific research, etc.

Procedure

1. Preparation: Log the sample into the software and the weight is automatically transferred.
2. Weighing (and adding of accelerators): For induction furnace, weigh the sample in a ceramic crucible and add accelerators like tungsten. For resistance furnace, weigh the sample and apply it directly to a boat.
3. Analysis: Place the sample on the pedestal or in front of the furnace and the analysis is started and contolled by the software.
4. Data output: After the analysis finished, the measured carbon and sulfur concentrations are available for export as a report or via LIMS.

Materials

• Carbon and Sulfur Analyzer
• Sample material
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