MECHANICAL BRONZE

Name Pb20   corresponding alloys in foreign standardisation
Mark G Cu Sn 5 Pb 20 ASTM
B 505
-
Table UNI 7013-5°
Cu REST BS
1400
LB 5
Sn 4-6
Pb 19-23 DIN
1705
G Cu Pb20 Sn
Zn 1.5
Ni 2 ISO
1338
Cu Pb20 Sn5
Fe 0.15
Sb 0.75     
S 0.20    
P 0.01    
Mn 0.05    
Notes Totals impurities excluded  Zn-Ni-Sb-P<=0.5    
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
9.3 150-200 60-100 4-8 45-55

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