MECHANICAL BRONZE

Name BS PB 30   corresponding alloys in foreign standardisation
Mark BS PB 30 ASTM
B 505
-
Table UNI 1698
Cu 64-68 BS
1400
-
Sn 2.5-3.5
Pb 28-32 DIN
1705
G Cu Pb22 Sn
Zn 0.1
Ni 1 ISO
1338
-
Fe 0.2
Sb 0.2     
S -    
P -    
Mn 0.05    
Notes Cu + Sn +Pb >=97.5    
mechanical features
volumetric mass Kg/dm3 traction breakage load R N/mm2 permanent deformation limit load Rn(0.2)N/mm2 lengthening
A
%
Brinell 
hardness
HB
9.8 - - - 30-55

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