Hayes Metals

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PB4 Phosphor Bronze

BS1400:1985

Composition

(maximum % unless otherwise listed)

Cu Remainder
Sn 9.7 min.
Zn 0.5
Pb 0.75
P 0.5 min
Ni 0.5
S* 0.1
T-I 0.50

T-I Total Impurities

Elements marked with * are specified impurities

Typical Physical Properties

 

Tensile Strength (MPa) 190-270
Elongation (% min) 3-12
0.2% Proof Stress (MPa) 100-160
Hardness (HB) 70-95