British Standard : LB1  
Indian Standard : 
Nominal Composition : 76/9/0/15 
Tensile Strength (kg/mm2) : 17-23 
Elongation % on 2" : 4-10 
Brinell Hardness : 50-70 
Typical Uses : Bearings in mining machinery in corrosive water conditions and for unlined bearings under poor lubrication conditions 

British Standard : LB2  
Indian Standard : LTB 5 
Nominal Composition : 80/10/0/10 
Tensile Strength (kg/mm2) : 18/26 
Elongation % on 2" : 5-15 
Brinell Hardness : 55-85 
Typical Uses : Mill bearings, railway bearings and bearings for the oil industry 

British Standard : LB3  
Indian Standard : 
Nominal Composition : 85/10/0/5 
Tensile Strength (kg/mm2) : 18-26 
Elongation % on 2" : 5-12 
Brinell Hardness : 70-85 
Typical Uses : Bushes for chill cast, centrifugally cast and continuously cast. 

British Standard : LB4  
Indian Standard : LTB 3 
Nominal Composition : 85/5/0/10 
Tensile Strength (kg/mm2) : 15-18 
Elongation % on 2" : 8-12 
Brinell Hardness : 55-75 
Typical Uses : Mill bearings, railway bearings and bearings for the oil industry 

British Standard : LB5  
Indian Standard : LTB 6 
Nominal Composition : 75/5/0/20 
Tensile Strength (kg/mm2) : 15-18 
Elongation % on 2" : 6-10 
Brinell Hardness : 45-65 
Typical Uses : Linings for steel backed motors and aero engine bearings for use at higher temperatures than white metal linings