It is also known as leaded brass or free machining brass. Free cutting brass material is fair to excellent corrosion resistance, soldering & excellent machine ability. Manufactures of fastener, domestic appliances, automotive engineering parts, hose fittings, gears, nuts, keys, bearing cages, valves, lock bodies, auto parts, handles, architectural forgings, gun sights etc, are the main user of free cutting brass extrusion rod. Types : IS 319/89 - Grade I IS 319/89 - Grade II IS 319/89 - Grade III BS 2874 - CZ 121 Pb3 UNS C36000 BS 2874 - CZ 131 CW 614 N EN 12164 : 1998