High Tensile Brass  

British Standard : HTB1 
Indian Standard : Grade III 
Nominal Composition : 58/1/1/1/39 
Tensile Strength (kg/mm2) : 47-58 
Elongation % on 2" : 25-30 
Brinell Hardness : 100-150 
Typical Uses : Components highly stresses at normal temperatures. 
 
British Standard : HTB2  
Indian Standard : Grade II 
Nominal Composition : 58/1/2/3/36 
Tensile Strength (kg/mm2) : 59-69 
Elongation % on 2" : 15-30 
Brinell Hardness : 120-200 
Typical Uses : Marine castings and fittings hydraulic equipment, locomotive axle boxes, pump castings 

British Standard : HTB3  
Indian Standard : Grade I 
Nominal Composition : 58/2/2/4/34 
Tensile Strength (kg/mm2) : 75-80 
Elongation % on 2" : 12-18 
Brinell Hardness : 150-230 
Typical Uses : Heavy rolling mill housing nuts, spur and gear, wheels which are heavily loaded and slow moving 
 

Name
High Tensile Brass
BS
HTB1
HTB2
Element
Min
Max
Min
Max
 
%
%
%
%
Copper 57.00 - 55.00 -
Tin - 1.00 - 0.20
Zinc Rem - Rem -
Lead - 0.50 - 0.20
Phosphorous - - - -
Nickel 0.70 1.00 - 1.00
Iron 0.50 2.00 1.50 3.25
Aluminium 1.00 2.50 3.00 6.00
Maganese - 3.00 1.50 4.00
Antimony - - - -
Iron+Arsenic - - - -
Antimony - - - -
Silicon - 0.10 - 0.10
Bismuth - - - -
Maganesium - - - -
Sulphur Nicbium - - - -
Impurities - 0.20 - 0.20
 
 
 
 
 
Manufacturer and Exporter of Copper Alloy Ingots
 
 
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Manufacturer of High Grade Copper based Alloys and Ingots confirming to 
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