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Phosphorus Bronze
 
 Chemical Composition Physical Properties
 
 Chemical Composition
 
PB-1
 
Standard: BS 1400
 
Copper Alloys CU SN PB ZN FE NI P AL SI Impurities
PB 1 Rem. 10 Min 0.25 0.05 0.1 0.1 0.5 Min 0.01 0.02 0.6
 
PB-2
 
Standard: BS 1400
 
Copper Alloy Copper Alloys SN PB ZN FE NI P AL SI Impurities
PB 2 Rem. 11 - 13 0.5 0.3 0.15 0.5 0.15 Min 0.01 0.02 0.2
 
PB-4
 
Standard: BS 1400
 
Copper Alloys CU SN PB ZN FE NI P AL SI Impurities
PB-4 Rem. 9.5 Min 0.75 0.5   0.5 0.4 Min     0.5
 
Phosphorus Bronze IS:28-1985 Grade-1
 
Standard: IS: 28-1985
 
Copper Alloys CU SN PB ZN FE NI P AL SI SB Impurities
Phosphorus Bz (Grade-1) Rem. 6-8 0.25 0.5 0.3 0.7 0.3-0.5 0.01 0.02 0.1 1.2
 
Phosphorus Bronze IS:28-1985 Grade-2
 
Standard: IS: 28-1985
 
Copper Alloys CU SN PB ZN FE NI P AL SI Impurities
Phosphorus Bz (Grade-2) Rem. 10 Min 0.25 0.05 0.1 0.1 0.5 Min 0.01 0.02 0.6
 
Phosphorus Bronze IS:28-1985 Grade-3
 
Standard: IS: 28-1985
 
Copper Alloys CU SN PB ZN NI P Impurities
Phosphorus Bz (Grade-3) Rem. 6.5-8.5 2-5 2 1 0.3 Min 0.5
 
Phosphorus Bronze IS:28-1985 Grade-4
 
Standard: 28-1985
 
Copper Alloys CU SN PB ZN NI P Impurities
Phosphorus Bz (Grade-4) Rem. 9-11 0.25 0.05 0.25 0.15 0.8
 
Phosphorus Bronze IS:28-1985 Grade-5
 
Standard: 28-1985
 
Copper Alloys CU SN PB ZN FE NI P AL SI Impurities
Phosphorus Bz (Grade-5) Rem. 11-13.1 0.5 0.3 0.15 0.5 0.15 Min 0.01 0.02 0.2
 
 
 
 
 
 
 
 
 
 
 Physical Properties
 
Phosphorus Bronze        
Grade B.S. 
1400: 1985
Nominal 
Composition
2% PS
N/mm Min
Tensile Strength
N/mm Min
Elongation 
% Min
Brinell
Hardness Min
PB1 89/10/01 130 250 5 60
PB1 88/12 140 260 7 80
PB1 90/10 130 250 5 60
PB1 90.5/9.5 130 240 5 80
LPB-1 87/8/2/3 80 175 7 60
Pbc2 88/12 120 195 5 60
Pbc2b 88/12 145 295 5 80
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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