Phosphor Bronze PB 103 (UNS C51900)


Technical Data Sheet

Chemical Composition Limits
Weight % Sn Pb Cu P Zn
PB 103
5.5 / 7.5 0.02 max remainder 0.02 / 0.04 0.3 max

PB103 is a Phosphor Bronze that is high strength and has very good corrosion resistance. PB103 also has good wear resistance and good spring properties. PB103 is used in many different applications from Marine hardware and instrument components, Electrical springs and contacts to gaskets, decorative purposed such as bar tops, counters and other architectural metal work.

Typical Mechanical Properties

Material 0.2% Proof Stress (N/mm²) Tensile Strength (N/mm²) Elongation in 50mm (%) Vickers Hardness (HV)
PB 103 550 min 620 min 6 min 200 min
The table shows material as cold rolled, extra hard

Availability
PB 103 is available in Foil, Sheet, Plate, Strip and Wire. For all stock availability contact Sales.

Specifications

Similar Specifications
BS 2870 (1980) superceded by BSEN 1652, BSEN 1653 and BSEN 1654 (1998)
BS 2873 (1969) superseded by BSEN 12166 (1998)
CuSn6
CW452K

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Disclaimer
Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only. All specifications are subject to change without notice.