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.
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