... /Cm3N/mm2HRAYG4C15.1180090Mainly used as small buttoon ns for percussion bits to cut soft and mediumhard formations. ... , non-ferrous metal and pipes, various drills for geology use, tools for machine manufacture and wearing parts.YK0514.9590.52500Mostly ... formation.YK1514.687.62450Suitable to strips, conical buttons for rotary percussion-resistant,geologicalprospectioin buttons, cut soft and ...