Do you need to perform carbon and sulfur analysis according to ISO 15350?
Securing metallic materials for the ASD sector with ISO 15350
In the Aerospace, Space, and Defense (ASD) sectors, the chemical purity of iron alloys is a safety imperative. An uncontrolled concentration of Carbon or Sulfur can alter the mechanical properties and corrosion resistance of your essential parts.
ISO 15350 defines a reference method for the determination of Carbon and Sulfur content in steels and cast irons by infrared absorption spectrometry after combustion in an induction furnace. This method is recognized for its high precision and its ability to detect extremely low content levels.
At FILAB, we support manufacturers in the ASD supply chain with the characterization and control of their materials according to ISO 15350. Our goal is clear: to ensure the reliability of your technical and industrial decisions.
ISO 15350: A key challenge for steel and cast iron quality
Carbon and sulfur analysis by combustion according to ISO 15350
The ISO 15350 standard is specifically dedicated to the elemental analysis of ferrous metals. It relies on the total combustion of the sample, allowing for a global and representative measurement of the light elements present in the matrix.
It is specifically used to:
- Precisely measure Total Carbon and Sulfur content.
- Validate compliance of steel grades (non-alloy steels, stainless steels, tool steels).
- Verify the quality of cast irons before or after forming.
In the Aerospace and Defense industries, mastering these elements according to ISO 15350 has a direct impact on:
- Hardness and brittleness (Carbon content).
- Surface quality and absence of "hot shortness" (Sulfur content).
- In-service behavior of strategic components subjected to cyclic mechanical stress.
FILAB, a laboratory tailored to Aerospace & Defense requirements
An analytical park dedicated to ISO 15350 testing
Analysis according to ISO 15350 requires state-of-the-art combustion technology to guarantee complete gas extraction. To meet these demands, FILAB provides its clients with high-performance equipment:
Dedicated Material Expertise Services
At FILAB, ISO 15350 analysis is part of a comprehensive material characterization approach. Our teams work on :
Carbon, alloy, and stainless steels
Samples from production, forging, or foundry
Cast irons (grey, ductile...)
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
Analysis of Iron, Aluminium, Molybdenum, Copper, Tin, Chromium, Titanium, Lead, Nickel, Zinc
Learn moreOur analytical services based on ISO and ASTM standards for the ASD sector
Our analytical services in accordance with MIL requirements for the ASD sector
FAQ
This standard is strictly dedicated to steels and cast irons. It covers a wide range of concentrations, from ultra-low carbon steels to highly alloyed cast irons.
During combustion under oxygen, Carbon is converted into CO2 and Sulfur into SO2. These gases absorb light at specific wavelengths in the infrared spectrum. The absorption intensity is directly proportional to the quantity of the element present in the sample.
Although the techniques are similar (Combustion and IR), ISO 15350 is the preferred international reference on certain European markets, while ASTM E1019 is more commonly cited in American specifications. Filab is able to comply with both standards.
The sample must be clean and free of surface contaminants (oils, greases). Filab systematically performs rigorous cleaning prior to analysis to measure only the Carbon and Sulfur in the bulk material (core).
