Q235B/Q355B Galvanized steel pipe
Q235B and Q355B are two common steel grades. Their applications in galvanized steel pipes have different characteristics and uses. If higher strength and better mechanical properties are required, Q355B is a better choice; if the strength requirements are not high and cost considerations are more, Q235B is more economical and applicable.

 
             
         
         
         
         
         
         
         
         
         
        
