Sulphur

Chemical Formula	Available Form	Description of the Product
S – 98%	Ingot, Granules, Cored wire	Sulphur is often regarded as an impurity in steel, to be reduced to the limits of practicality. Nonetheless, steels that are to be machined require a certain minimum sulfur content for proper chip formation. It is used as an alloying addition to improve machinability. Increasing the sulfur content from a nominal, say 0.008% to 0.060% lowers the Charpy upper shelf level, thereby raising the transition temperature as fixed by a given impact energy.