Phosphor bronze C5191, C5441 
 Alloy Sn P Pb Zn Cu + Sn + P 

 C5191 5.5-7.0 0.03-0.35 99.5 or above 

 C5441 3.0-4.5 0.01-0.50 3.5-4.5 1.5-4.5 99.5 or above 

 Mechanical properties 

 Alloy size range tensile strength N/mm2 Elongation% 

 C5191 1/2H 3 ~ 6mm less than 510 

 6 ~ 13mm less than 460 over 13 

 13 ~ 25mm less than 430 over 15 

 25 ~ 50mm less than 410 over 18 

 50 ~ 100mm less than 390 over 18 



 H 3 ~ 6mm less than 635 

 6 ~ 13mm less than 590 over 10 

 3 ~ 25mm less than 540 over 13 

 25 ~ 50mm less than 490 over 15 

 50 ~ 100mm less than 440 over 15 


 C5441 H 0.5 ~ 3mm less than 470 

 3 ~ 6mm less than 440 

 6 ~ 13mm less than 410 over 10 

 13 ~ 25mm less than 375 over 12 

 25 ~ 50mm less than 345 over 15 

 50 ~ 100mm less than 320 over 15 

 Hardness HRB 



 C5191 1/2H 70-85