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ASTM B591-20a

Standard Specification for Copper-Zinc-Tin and Copper-Zinc-Tin-Iron-Nickel Alloys Plate, Sheet, Strip, and Rolled Bar
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This specification covers the requirements for plates, sheets, strips, and rolled bars of copper-zinc-tin and copper-zinc-tin-iron-nickel alloys with Copper Alloy UNS Nos. C40500, C40810, C40850, C40860, C41100, C41300, C41500, C42200, C42500, C42520, C43000, and C43400.

Materials shall be processed by hot working, cold working, and annealing as to produce a uniform wrought structure in the finished product. Tempers shall be available in the rolled, as hot rolled, or annealed conditions.

Products shall be sampled and prepared, then tested accordingly to examine their conformance to:

  • Dimensional requirements: thickness, length, width, mass, straightness, and edges
  • Mechanical requirements: tensile strength, and Rockwell hardness
  • Chemical composition
  • Grain size requirements

1.1 This specification establishes the requirements for specified copper-zinc-tin alloys and copper-zinc-tin-iron-nickel alloys plate, sheet, strip, and rolled bar.

The alloys and nominal compositions are as follows:

Copper Alloy
UNS No.

Copper,
%

Tin,
%

Zinc,
%

Phos.,
%

Iron,
%

Nickel,
%

C40500

95

1

4

 

 

 

C40810

95.5

2.0

2.2

0.03

0.1

0.15

C40850

95.5

3.0

1.3

0.1

0.1

0.1

C40860

94.8

2.0

3

0.03

0.03

0.1

C41100

91

0.5

8.5

 

 

 

C41300

91

1

8

 

 

SDO ASTM: ASTM International
Document Number B591
Publication Date Oct. 1, 2020
Language en - English
Page Count 6
Revision Level 20a
Supercedes
Committee B05.01
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