Sulfur Determination in Ultra Low Sulfur Steel, Nickel, and Superalloys

DOCUMENT: Application | Ref: 203-821-540Download
Category: Analytical Elemental analysis, Metallurgy and Metals

The LECO CS844ES with a detection limit of approximately 0.1 μg of sulfur expands the capability of the combustion technique to levels previously limited to GD-MS. The following application note outlines the settings and steps required to determine ultra-low levels of sulfur in steel, nickel, and superalloys.

The accurate determination of ultra-low levels of sulfur in steel, nickel, and super alloys is an important quality control metric when these alloys are utilized in high temperature applications. Sulfur is known to degrade a high temperature alloy’s ability to form a protective alumina scale on its surface, which protects it from thermal oxidation, and also has a detrimental effect on the mechanical properties of the alloy. Even ultra-low levels of sulfur can limit an alloy’s useful operating life in critical applications like aerospace engine components.