(See also Aluminum Bronzes and Japanese Bronzes under this title.)

I

Copper, 84 parts; zinc,

11  parts; tin, 5 parts.

II

Copper, 90 parts; zinc, 6 parts; tin, 2 parts; lead, 2 parts.

III

Copper, 65 parts; zinc, 30 parts; tin, 5 parts.

IV

Copper, 90 parts; tin, 5 parts; zinc, 4 parts; lead, 1 part.

V

Copper, 85 parts; zinc, 10 parts; tin, 3 parts; lead, 2 parts.

VI

Copper, 72 parts; zinc, 23 parts; tin, 3 parts; lead, 2 parts.