
| Grade | 
 | Chemical composition % MAX | ||||||||
| 
 | C | Si | P | S | N2 | 
 | ||||
| TH | ≤16 | >16≦32 | >32≦40 | >40 | 
 | 
 | 
 | 
 | 
 | |
| ST52-3 | 
 | 0.20 | 0.20 | 0.22 | 0.22 | ~ | 0.05 | 0.05 | 0.009 | 
 | 
| 
 | Mechanical properties MIN | |||||||||
| 
 | Yield strength (N/MM2) | Tensile strength (N/MM2) | ||||||||
| TH | ≤16 | >16≦40 | >40≦63 | >63≦80 | >80≦100 | >100 | <3 | >3≦100 | >100 | |
| 
 | 355 | 345 | 335 | 325 | 315 | ~ | 510-680 | 490-630 | ~ | |
Just like you, 70% customers choose long-term cooperation with BBN steel not only for our good product and service quality, good reputation in the international market, but also for our experienced one-stop raw material supply and further steel processing!
 
   
   
   
   
   
   
   
  Henan BEBON Iron&Steel co.,ltd.