This specification establishes the requirements brass plates, sheets, strips, and rolled bars made from UNS C21000, C22000, C22600, C23000, C24000, C26000, C26800, C27200, or C28000. Plates are generally available only in the hot-rolled temper. The standard tempers of as hot rolled, rolled, annealed, and annealed-to-temper materials are detailed in this specification as well as in other specifications listed herein. This specification also contains information on the required tensile strengths, Rockwell hardness and grain sizes of the materials. The Rockwell hardness test can be used to test for general conformity to the specification requirements for temper, tensile strength and grain size.

1.1 This specification establishes the requirements for brass plate, sheet, strip, and rolled bar of the following alloys:2

Copper Alloy
UNS No.

Previous
Trade Name

Nominal Composition

Copper, %

Zinc, %

C21000

Gilding, 95 %

95

5

C22000

Commerical Bronze, 90 %

90

10

C22600

Jewerly Bronze, 87¹/₂ %

87.5

12.5

C23000

Red Brass, 85 %

85

15

C24000

Low Brass, 80 %

80

20

C26000

Cartridge Brass, 70 %

70

30

C26800

Yellow Brass, 66 %

66

34

C27200

…

63

37

C28000

Muntz Metal, 60 %

60

40

1.2 Units—The values stated in either inch-pound units or SI units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.