British Standard LG2
Indian Standard LTB2/Grade II
Nominal Composition 85/5/5/5
Tensile Strength (kg/mm2) 19-26
Elongation % on 2" 15-25
Brinell Hardness 65-75
Typical Uses

Valve bodies, pump bodies, elbows, pipes, taps, cocks and other hydraulic fittings where pressure tight fittings are important

Name Gun Metal
BS LG2
Element Min Max
  % %
Copper Rem -
Tin 4.00 6.00
Zinc 4.00 6.00
Lead 4.00 6.00
Phosphorous - 0.02
Nickel - 2.00
Iron - 0.25
Aluminium - 0.01
Manganese - -
Antimony - -
Iron + Arsenic - -
Impurities - 0.80