British Standard : G2  
Indian Standard : Grade II 
Nominal Composition : 88 / 8 / 4 
Tensile Strength (kg/mm2) : 25 - 32 
Elongation % on 2" : 15 - 25 
Brinell Hardness : 70 - 90 
Typical Uses : Pressure tight bearings, bushes, pumps and pump fittings, valves, valve bodies, and valve guides under corrosive marine conditions. 

British Standard : G3  
Indian Standard : 
Nominal Composition : 85 / 7 / 2.5 / 5.5 
Tensile Strength (kg/mm2) : 28 - 34 
Elongation % on 2" : 18 -25 
Brinell Hardness : 70 - 90 
Typical Uses : Cast components such as actuating nuts, valve, pump and similar components at normal temperatures under corrosive conditions 

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 

British Standard : LG2  
Indian Standard : LTB 2 / 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 

British Standard : LG3  
Indian Standard : Grade I 
Nominal Composition : 86 / 7 / 5 / 2 
Tensile Strength (kg/mm2) : 22 - 31 
Elongation % on 2" : 12 - 25 
Brinell Hardness : 70 - 85 
Typical Uses : Pump and valve parts, steam valves, oil pumps, bushes of medium strength 

British Standard : LG4  
Indian Standard : LTB 1 
Nominal Composition : 88 / 7 / 2 / 3 
Tensile Strength (kg/mm2) : 25 - 32 
Elongation % on 2" : 18 - 25 
Brinell Hardness : 70 - 85 
Typical Uses : Railway bearings, engine components, tractor parts and pressure components