Name:
ASTM B103/B103M-19 PDF
Published Date:
10/01/2019
Status:
Active
Publisher:
ASTM International
1.1 This specification establishes the requirements for copper-tin alloy (phosphor bronze), copper-tin-lead alloy (leaded phosphor bronze), and copper-tin-lead-zinc alloy (bearing bronze), plate, sheet, strip, and rolled bar. The phosphor bronzes commonly are used for deep drawing into bellows and stamping and forming into spring devices and into terminals and connectors for electrical apparatus because they combine high strength with high elongation. The leaded phosphor bronzes are used where strength, corrosion resistance, and machinability are required. The bearing bronze is used in bushings, bearings, and load-bearing thrust washers. The following alloys are covered:
Copper Alloy UNS No.2
Nominal Composition, %
Previously Used Designation
Copper
Tin
Zinc
Lead
C51000
95
5
. . .
. . .
A1
C51100
96
4
. . .
. . .
A
C51180
96
4
. . .
. . .
. . .
C51900
94
6
. . .
. . .
C52100A
92
8
. . .
. . .
C
C52180
92
8
. . .
. . .
. . .
C52400
90
10
. . .
. . .
D
C53400
94
5
. . .
1
B1
C54400
88
4
3
4
B2
Note 1: All of the above alloys contain small amounts of phosphorus, used as a deoxidant in melting, and to enhance the mechanical properties.
1.2 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, SI units are shown in brackets. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.
1.3 The following safety hazard caveat pertains only to the test method(s) described in this specification.
1.3.1 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.4 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.
| File Size : | 1 file , 90 KB |
| Note : | This product is unavailable in Russia, Ukraine, Belarus |
| Number of Pages : | 7 |
| Published : | 10/01/2019 |
| Redline File Size : | 2 files , 170 KB |
