Steel grade  | 
                                                        
                                                             
                                                                Min. yield strength  | 
                                                        
                                                             
                                                                Tensile strength  | 
                                                        
                                                             
                                                                Min. elongation  | 
                                                    
|---|---|---|---|
Standard EN 10249-1  | 
                                                    |||
S 235 JRC  | 
                                                        235  | 
                                                        340 ~ 470  | 
                                                        26  | 
                                                    
S 275 JRC  | 
                                                        275  | 
                                                        410 ~ 560  | 
                                                        22  | 
                                                    
S 355 JOC  | 
                                                        355  | 
                                                        490 ~ 630  | 
                                                        22  | 
                                                    
Chinese Standard GB/T 29654-2013  | 
                                                    |||
Q235  | 
                                                        235  | 
                                                        370 ~ 500  | 
                                                        26  | 
                                                    
Q295  | 
                                                        295  | 
                                                        390 ~ 570  | 
                                                        23  | 
                                                    
Q345  | 
                                                        345  | 
                                                        480 ~ 630  | 
                                                        22  | 
                                                    
Q390  | 
                                                        390  | 
                                                        490 ~ 650  | 
                                                        20  | 
                                                    
Q420  | 
                                                        420  | 
                                                        520 ~ 680  | 
                                                        19  | 
                                                    
Q355NH  | 
                                                        355  | 
                                                        490 ~ 630  | 
                                                        22  | 
                                                    
                                        
        

