(1970 Edition)
Wrought Materials - Copper-Zinc-Lead Alloys - Leaded Brasses
Common names: Clock Brass
Medium-Leaded Brass
A copper-zinc-lead alloy with an alpha phase structure containing a dispersion of fine lead particles; small amounts of retained beta phase may also be present. The alloy, which is readily cold formed and machined, has good punching and shearing properties.
COMPOSITION weight (%) Cu 62.5 - 66.5 Pb 0.5 - 1.5 Zn rem.
INDEX NUMBERS RELATE TO LITERATURE REFERENCE; INDEX LETTERS RELATE TO FOOTNOTES AT END OF TABLE
Mechanical
Parts requiring good coldforming and machining properties; nuts, rivets, screws and other headed components; instrument parts and end plates; clock and watch components; key blanks.
Miscellaneous
Printers' matrices.