British Standard
LG1
Indian Standard
Nominal Composition
83/3/9/5
Tensile Strength (kg/mm2)
17-22
Elongation % on 2"
12-15
Brinell Hardness
55-65
Typical Uses
Hardware fittings, plumbing fixtures
Name
Gun Metal
BS
LG1
Element
Min
Max
%
%
Copper
Rem
-
Tin
2.00
3.50
Zinc
7.50
9.50
Lead
4.00
6.00
Phosphorous
-
-
Nickel
-
2.00
Iron
-
-
Aluminium
-
0.01
Manganese
-
-
Antimony
-
-
Iron + Arsenic
-
-
Impurities
-
1.00