- Introduction
 - Classification and code
 - Similar grades
 - For specification
 
| 
				 Grades  | 
			
				 Main purpose  | 
			
				 Base plate  | 
			
				 Corresponding substrate standard  | 
		
| 
				 SECC、SECD、SECE  | 
			
				 For stamping  | 
			
				 SPCC、CPCD、SPCE  | 
			
				 Q/BQB 402-2003  | 
		
| 
				 SECIF  | 
			
				 DC05(BSC2)  | 
			
				 Q/BQB 403-2003  | 
		|
| 
				 BLCE+Z, BLCE+ZN  | 
			
				 BLC  | 
			
				 Q/BQB 408-2003  | 
		|
| 
				 BLDE+Z, BLDE+ZN  | 
			
				 CLD  | 
		||
| 
				 BUSDE+Z, BUSDE+ZN  | 
			
				 BUSD  | 
		||
| 
				 BUFDE+Z, BUFDE+ZN  | 
			
				 BUFD  | 
		||
| 
				 BSUFDE+Z, BSUFDE+ZN  | 
			
				 BSUFD  | 
		||
| 
				 B170P1E+Z, B170P1E+ZN  | 
			
				 Cold Forming  | 
			
				 B170P1  | 
			
				 Q/BQB 411-2003  | 
		
| 
				 B210P1E+Z, B210P1E+ZN  | 
			
				 B210P1  | 
		||
| 
				 B250P1E+Z, B250P1E+ZN  | 
			
				 B250P1  | 
		||
| 
				 B180P2E+Z, B180P2E+ZN  | 
			
				 B180P2(BP340)  | 
		||
| 
				 B220P2E+Z, B220P2E+ZN  | 
			
				 B220P2(BP380)  | 
		||
| 
				 B140H1E+Z, B140H1E+ZN  | 
			
				 B140H1  | 
			
				 Q/BQB 416-2003  | 
		|
| 
				 B180H1E+Z, B180H1E+ZN  | 
			
				 B180H1  | 
		||
| 
				 B180H2E+Z, B180H2E+ZN  | 
			
				 B180H2(BH340)  | 
		||
| 
				 B340/590DPE+Z, B340/590DPE+ZN  | 
			
				 B340/590DP  | 
			
				 Q/BQB 418-2003  | 
		|
| 
				 B400/780DPE+Z, B400/780DPE+ZN  | 
			
				 B400/780DP  | 
		||
| 
				 B340LAE+Z, B340LAE+ZN  | 
			
				 B340LA  | 
			
				 Q/BQB 419-2003  | 
		|
| 
				 B410LAE+Z, B410LAE+ZN  | 
			
				 B410LA  | 
		
	Reference list of steel grades and  corresponding grades
Similar brand comparison table(1)- low carbon steel
| 
				 Standard No.  | 
			
				 Q/BQB 430-2003  | 
			
				 EN 10152-1993  | 
			
				 
					EN  | 
			
				 
					JIS  | 
			
				 
					JFS A3041-1998  | 
			
				 
					JFS A3021-1998  | 
			
				 GB/T 17675-1995  | 
			
				 
					ASTM A591-98  | 
		
| 
				 Grades  | 
			
				 
					BLCE+Z  | 
			
				 DC01+ZE  | 
			
				 -  | 
			
				 SECC  | 
			
				 -  | 
			
				 JEC 270C  | 
			
				 DX1  | 
			
				 CS  | 
		
| 
				 BLCE+ZN  | 
			
				 -  | 
			
				 DC01+ZN  | 
			
				 -  | 
			
				 JNC 270C  | 
			
				 -  | 
			
				 -  | 
		||
| 
				 
					BLDE+Z  | 
			
				 DC03+ZE  | 
			
				 -  | 
			
				 SECD  | 
			
				 -  | 
			
				 JEC 270D  | 
			
				 DX2  | 
			
				 DS  | 
		|
| 
				 BLDE+ZN  | 
			
				 -  | 
			
				 DC03+ZN  | 
			
				 -  | 
			
				 JNC 270D  | 
			
				 -  | 
			
				 -  | 
		||
| 
				 
					BUSDE+Z  | 
			
				 DC04+ZE  | 
			
				 -  | 
			
				 SECE  | 
			
				 -  | 
			
				 JEC 270E  | 
			
				 DX3  | 
			
				 DDS  | 
		|
| 
				 BUSDE+ZN  | 
			
				 -  | 
			
				 DC04+ZN  | 
			
				 -  | 
			
				 JNC 270E  | 
			
				 -  | 
			
				 -  | 
		||
| 
				 
					BUFDE+Z  | 
			
				 DC05+ZE  | 
			
				 -  | 
			
				 -  | 
			
				 -  | 
			
				 JEC 270F  | 
			
				 -  | 
			
				 EDDS  | 
		|
| 
				 BUFDE+ZN  | 
			
				 -  | 
			
				 DC05+ZN  | 
			
				 -  | 
			
				 JNC 270F  | 
			
				 -  | 
			
				 -  | 
		||
| 
				 BSUFDE+Z  | 
			
				 -  | 
			
				 DC06+ZN  | 
			
				 -  | 
			
				 -  | 
			
				 JEC 270G  | 
			
				 -  | 
			
				 -  | 
		|
| 
				 BSUFDE+ZN  | 
			
				 -  | 
			
				 DC06+ZN  | 
			
				 -  | 
			
				 JNC 270G  | 
			
				 -  | 
			
				 -  | 
			
				 -  | 
		
Similar brand comparison table(2)-High Strength Steel
| 
				 Standard No.  | 
			
				 Q/BQB 430-2003  | 
			
				 JFS A3021-1998  | 
			
				 JFS A3041-1998  | 
			
				 
					PrEN10268-2002  | 
		
| 
				 
					 Grades  | 
			
				 B170P1E+Z  | 
			
				 JEC 370P  | 
			
				 -  | 
			
				 -  | 
		
| 
				 B170P1E+ZN  | 
			
				 -  | 
			
				 JNC 370P  | 
			
				 -  | 
		|
| 
				 B210P1E+Z  | 
			
				 JEC 390P  | 
			
				 -  | 
			
				 -  | 
		|
| 
				 B210P1E+ZN  | 
			
				 -  | 
			
				 JNC 390P  | 
			
				 -  | 
		|
| 
				 B250P1E+Z  | 
			
				 JEC 440P  | 
			
				 -  | 
			
				 -  | 
		|
| 
				 B250P1E+ZN  | 
			
				 -  | 
			
				 JNC 440P  | 
			
				 -  | 
		|
| 
				 B180P2E+Z  | 
			
				 -  | 
			
				 -  | 
			
				 B180P  | 
		|
| 
				 B180P2E+ZN  | 
			
				 -  | 
			
				 -  | 
		||
| 
				 B220P2E+Z  | 
			
				 -  | 
			
				 -  | 
			
				 B220P  | 
		|
| 
				 B220P2E+ZN  | 
			
				 -  | 
			
				 -  | 
		||
| 
				 B140H1E+Z  | 
			
				 -  | 
			
				 -  | 
			
				 -  | 
		|
| 
				 B140H1E+ZN  | 
			
				 -  | 
			
				 JNC 270H  | 
			
				 -  | 
		|
| 
				 B180H1E+Z  | 
			
				 --  | 
			
				 -  | 
			
				 -  | 
		|
| 
				 B180H1E+ZN  | 
			
				 -  | 
			
				 JNC 340H  | 
			
				 -  | 
		|
| 
				 B180H2E+Z  | 
			
				 -  | 
			
				 -  | 
			
				 B180H  | 
		|
| 
				 B180H2E+ZN  | 
			
				 -  | 
			
				 JNC 340H  | 
		||
| 
				 B340/590DPE+Z  | 
			
				 -  | 
			
				 -  | 
			
				 -  | 
		|
| 
				 B340/590DPE+ZN  | 
			
				 -  | 
			
				 -  | 
			
				 -  | 
		|
| 
				 B400/780DPE+Z  | 
			
				 -  | 
			
				 -  | 
			
				 -  | 
		|
| 
				 B400/780DPE+ZN  | 
			
				 -  | 
			
				 -  | 
			
				 -  | 
		|
| 
				 B340LAE+Z  | 
			
				 -  | 
			
				 -  | 
			
				 B340LA  | 
		|
| 
				 B340LAE+ZN  | 
			
				 -  | 
			
				 -  | 
		||
| 
				 B410LAE+Z  | 
			
				 JEC 590P  | 
			
				 -  | 
			
				 B420LA  | 
		|
| 
				 B410LAE+ZN  | 
			
				 -  | 
			
				 JNC 590P  | 
		

