Mobile spectrometers like ferro.lyte®, SPECTROTEST, and Niton Apollo can accurately measure carbon content in 316L stainless steel.

Optical Emission Spectrometry (OES) for 316L

Ferro.lyte® is a mobile optical emission spectrometer optimized for metal production, processing, and recycling. It uses spark excitation OES to measure elements with low atomic numbers, including carbon, phosphorus, sulfur, and boron, with precision comparable to laboratory instruments. It is particularly suitable for 316 and 316L stainless steel, allowing rapid determination of carbon content on-site. The device features an intuitive touchscreen interface, CONLYTE® technology for stable nitrogen analysis, and connectivity via USB, WLAN, LAN, or Bluetooth for data management .

SPECTROTEST is another mobile arc spark spectrometer capable of identifying low-alloy steels and measuring carbon content. It offers both arc and spark excitation modes, automated operation for high sample volumes, and diagnostic software (iCAL 2.0) to maintain calibration despite temperature shifts. This makes it suitable for on-site quality control of 316L stainless steel and other alloys .

Laser-Based Carbon Analysis

Niton Apollo is a portable LIBS (Laser Induced Breakdown Spectroscopy) analyzer designed for fast, accurate carbon measurement in low-alloy and stainless steels. It provides results in about 10 seconds, works directly in the field, and supports integration into analysis reports. The device uses argon cartridges and safety features to ensure reliable operation, making it ideal for production line monitoring and verification of 316L steel .

Key Considerations

• Portability: All three instruments are designed for on-site use, reducing the need to transport samples to a lab.
• Speed: Niton Apollo offers near-instant results (~10 seconds), while ferro.lyte® and SPECTROTEST provide rapid analysis suitable for multiple samples.
• Precision: OES-based devices like ferro.lyte® and SPECTROTEST provide laboratory-level accuracy, including low-carbon detection.
• Data Management: Modern spectrometers include software for reporting, calibration, and connectivity to streamline quality control processes.

For 316L stainless steel, these spectrometers allow precise carbon measurement, ensuring compliance with alloy specifications and supporting efficient on-site quality control.