LB4 Leaded Bronze

BS1400:1985

Composition (maximum % unless otherwise listed)

Cu Remainder
Sn 4.2 - 6.0
Zn 2.0
Pb 8.5 - 10.0
P 0.05
Ni 2.0
Fe* 0.15
Al* 0.01
Mn* 0.2
Sb* 0.5
Si* 0.02
S* 0.1
T-I 0.05

T-I   Total Impurities

Elements marked with * are specified impurities

Typical Physical Properties

Tensile Strength (MPa) 160-190
Elongation (% min) 7-12
0.2% Proof Stress (MPa) 60-100
Hardness (HB) 55-75

Related Specifications

AS 1565:1985 C93500
AS 1565:1974 935B
ASTM 936
SAE 66

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