ASTM B591-98a

1.1 This specification covers several copper-zinc-tin alloys in the form of plate, sheet, strip, and rolled bar. The alloys and nominal compositions are as follows:

Copper Copper, Tin, Zinc, Alloy UNS No. 2 % % % C40500 95 1 4 C40800 95 2 3 C41100 91 0.5 8.5 C41300 91 1 8 C41500 91 2 7 C42200 87 1 12 C42500 88 2 10 C43000 85 2 13 C43400 85 0.7 14.3

1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.