Composed mostly of tungsten carbide (WC) fragments bound with a metal binder, such as cobalt, cemented carbide incorporates the strength of tungsten with the strength of various other steels. The make-up of cemented carbides can be tailored to fit particular applications, leading to the manufacturing of selections like YG6, yg20, http://marinecleanupinitiativeinc.org/members/perchpie4/activity/30856/