LG4 Leaded Gunmetal

BS1400:1985

Composition (maximum % unless otherwise listed)

Cu Remainder
Sn 6.0 - 8.0
Zn 1.7 - 3.2
Pb 2.7 - 3.5
P 0.02
Ni 2.0
Fe* 0.2
Al* 0.01
Sb* 0.25
As* 0.15
Si* 0.01
Bi* 0.05
S* 0.1
Fe + As + Sb         0.40
Sn + (0.5xNi)      7.0 - 8.0 
T-I 0.70

T-I   Total Impurities

Elements marked with * are specified impurities

Typical Physical Properties

Tensile Strength (MPa) 250-320
Elongation (% min) 16-25
0.2% Proof Stress (MPa) 130-140
Hardness (HB) 70-85

Related Specifications

AS 1565:1985 C92410
AS 1565:1974 924B
ASTM 924

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