British Standard : SCB1  
Indian Standard : Grade I 
Nominal Composition : 75/25 
Tensile Strength (kg/mm2) : 17-20 
Elongation % on 2" : 20-40 
Brinell Hardness : 45-60 
Typical Uses : Valves, cocks, plumbing fittings, hardware and ornamental castings 

British Standard : SCB2  
Indian Standard : Grade II 
Nominal Composition : 70/30 
Tensile Strength (kg/mm2) : 17-20 
Elongation % on 2" : 12-25 
Brinell Hardness : 45-65 
Typical Uses : Marine fittings, castings for the electrical trade, brush holders 

British Standard : SCB3  
Indian Standard : Grade III 
Nominal Composition : 65/35 
Tensile Strength (kg/mm2) : 18-22 
Elongation % on 2" : 12-30 
Brinell Hardness : 45-65 
Typical Uses : Pipe fittings, gas fittings, door and furniture fittings, switchgear brush holders 

British Standard : SCB4  
Indian Standard : 
Nominal Composition : 60/40 
Tensile Strength (kg/mm2) : 25-31 
Elongation % on 2" : 20-40 
Brinell Hardness : 50-75 
Typical Uses : Pump bodies, bolts, nuts, end plates for heat exchange equipment and small machine parts 

British Standard : SCB5  
Indian Standard : 
Nominal Composition : 90/10 
Tensile Strength (kg/mm2) : 18-22 
Elongation % on 2" : 20-40 
Brinell Hardness : 45-65 
Typical Uses : Flanges, end plates and fittings for marine applications 

British Standard : SCB6  
Indian Standard : 
Nominal Composition : 85/15 
Tensile Strength (kg/mm2) : 17-18 
Elongation % on 2" : 20-40 
Brinell Hardness : 45-60 
Typical Uses : Flanges, end plates, fittings for marine applications and imitation jewellery