Bronze
   
 
Tin Bronze
Phosphorus Bronze
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Leaded Bronze
Manganese Bronze
Silicon Bronze
   
Gunmetal
   
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Cupro Iron
Cupro Manganese
Cupro Nickel
Phosphorus Copper
 
Leaded Bronze
 
 Chemical Composition Physical Properties
 
 Chemical Composition
 
LB-1
 
Standard: BS 1400
 
Copper Alloys CU SN PB ZN NI P SI Impurities
LB-1 Rem. 8-10 13-17 1 2 0.1 0.02 0.3
 
LB-2
 
Standard: BS 1400
 
Copper Alloys CU SN PB ZN FE NI P AL SI SB Impurities
LB-2 Rem. 9-11 8.5-11 1 0.15 2 0.1 0.01 0.02 0.5 0.5
 
LB-4
 
Standard: BS 1400
 
Copper Alloys CU SN PB ZN NI P SI SB Impurities
LB-4 Rem. 4-6 8-10 2 2 0.1 0.02 0.5 0.5
 
AB-5
 
Standard: JIS
 
Copper Alloys CU SN PB ZN NI P SI SB Impurities
LB-5 Rem. 4-6 18-23 1 2 0.1 0.01 0.5 0.3
 
LTB-3
 
Standard: IS 318-1981
 
Copper Alloys CU SN PB ZN FE NI AL SI SB Impurities
LTB-3 Rem. 6-8 9-11 0.75 0.35 2 0.01 0.02 0.5 0.8
 
LTB-4
 
Standard: IS 318-1981
 
Copper Alloys CU SN PB ZN FE NI AL SI SB Impurities
LTB-4 Rem. 6-8 14-16 0.75 0.35 2   0.02 0.5 0.8
 
LTB-5
 
Standard: IS 318-1981
 
Copper Alloys CU SN PB ZN FE NI AL SI SB Impurities
LTB-5 Rem. 9-11 8.5-11 1 0.35 2 0.01 0.02 0.5 0.8
 
LTB-6
 
Standard: IS 318-1981
 
Copper Alloys CU SN PB ZN FE NI AL SI SB Impurities
LTB-6 Rem. 4-6 18-23 1 0.35 2   0.01 0.5 0.8
 
 
 
 
 
 
 
 
 
 
 
 
 Physical Properties
 
Leaded Bronze          
Grade B.S. 
1400: 1985
Nominal 
Composition
2% PS
N/mm Min
Tensile Strength
N/mm Min
Elongation 
% Min
Brinell
Hardness Min
LPB-1 76/9/0/15        
LB2 80/10/0/10 80 180 8 60
LB3/LBC3 85/10/0/5 100 195 10 65
LB4 85/5/0/10 60 160 7 55
LB5 75/5/0/20 70 150 5 45
LBC3 79/10/1/10 80 180 8 60
LBC4 78/7/0/15 80 170 8 60
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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