Designation

Brand

Quality grade

Dimension(mm)

Stock size
（mm）

Executive technical standard

Hot rolled carbon structural medium Plate

Thickness6--25

GB/T 3274-2007

Q215

A、B

Mutual agreement

Thickness＞25，≤50

GB/T 3274-2007

Q235

A、B、C、D、E

Mutual agreement

Thickness＞50

Thickness 6-25：

Mutual agreement

SS330、SS400、SS490

Thickness 6--25

Width1700-2450

JIS G 3101-2004

Thickness＞25,≤40

Length4000-13000

Mutual agreement

A36M

Thickness 6--25

Thickness 26-120：

ASTMA36M-2001

Thickness＞25,≤40

Width 1500-2500

ASTMA36M-2001

Length 4000-13000

Mutual agreement

European standard: hot rolled unalloyed structural steel plate

S235(JR+AR,J0+AR,J2+N)

Thickness 6--40

EN10025-2：2004

S275(JR+AR,J0+AR,J2+N)

S355(JR+AR,J0+AR,J2+N)

Steel plate for boiler

Q245R

Thickness 6--25

GB 713-2008

Thickness＞25-50

Q345R

Thickness 6--22

Thickness＞22，≤50

Low alloy high strength structural steel plate

Q390、Q420

A、B、C、D、E

Thickness 6--25

GB/T3274-2007 

Mutual agreement

Thickness＞25-40

GB/T 3274-2007

Mutual agreement

Thickness 40-60

Mutual agreement

Q460

C

Thickness 6--25

GB/T 1591-2008

Mutual agreement

Low alloy high strength structural steel plate

AH60

C

Thickness 6--25

Q/AGJ01.017-2009

Mutual agreement

Hot rolled low alloy high strength structural medium plate

Q345

A、B、C、D、E

Thickness 6--22

Thickness 6-25：

GB/T 3274-2007

Width1700-2450

Mutual agreement

Thickness＞22，≤40

Length 4000-13000

GB/T 3274-2007

Thickness26-120：

Mutual agreement

Thickness＞40

Width 1500-2500

Mutual agreement

Hot rolled high-quality carbon structural steel plate

for plastic die      

SM45

Thickness 6--120

Length 4000-13000

YB/T 107-1997

Hot rolled structural steel plate for hull

A、B

Thickness：6--25

LR provision, BV provision,    DNV provision, ABS provision,   GL provision, CCS provision,    RINA provision, KR provision,   NK provision

Hot rolled structural steel plate for hull(high strength plate for hull)

AH32

LR provision, BV provision

DH32

Width：1600-2450

ABS provision

AH36

Length：4000-13000

KR provision

DH36

RINA provision

A32

D32

GL provision

A36

CCS provision

D36

Designation

Brand

Quality grade

Dimension(mm)

Stock size
（mm）

Executive technical standard

Q215

A、B

Thickness6--25

Width：   2170-3250   Length：   4000-18000

GB/T 3274-2007

Mutual agreement

Thickness＞25，≤50

GB/T 3274-2007

Q235

A、B、C、D、E

Mutual agreement

Hot rolled carbon structural medium Plate

Thickness＞50

Mutual agreement

SS330、SS400、SS490

Thickness6--25

JIS G 3101-2004

Thickness＞25-50

JIS G 3101-2004

Mutual agreement

Thickness＞50

Mutual agreement

A36M

Thickness6--25

ASTMA36M-2001

Thickness＞25-50

ASTMA36M-2001

Mutual agreement

European standard: hot rolled unalloyed structural steel plate

S235(JR+AR,J0+AR,J2+N)

Thickness6--50

EN10025-2：2004

S275(JR+AR,J0+AR,J2+N)

S355(JR+AR,J0+AR,J2+N,K2+N)

 Hot rolled high-quality carbon structural steel plate for plastic die

SM45

Thickness6--120

YB/T 107-1997

Steel plate for boiler        

Q245R

Thickness6--50

GB 713-2008

Q345R

Low alloy welded structural steel plate

SM490A

Thickness6--25

JIS G 3106-2008

Mutual agreement

Thickness＞25-40

JIS G 3106-2008

Mutual agreement

Hot rolled steel plate for skyscraper

Q235GJ series      （Q235GJZ series)   

B、C、D、E(Z15、Z25、Z35）

Thickness6-60

GB/T19879-2005

Q345GJ series （Q345GJZ series)                    

B、C、D、E(Z15、Z25、Z35）

Steel plate with through-thickness characteristics    

Q235 series       Q345 series

Z15、Z25、Z35（A、B、C、D、E）

Thickness15-60

GB/T5313-2010 GB/T3274-2007

Hot rolled low alloy high strength structural medium plate

Q345

A、B、C、D

Thickness6--25

GB/T 3274-2007

Mutual agreement

Thickness＞25，≤50

GB/T 3274-2007

Mutual agreement

Thickness＞50

Mutual agreement

Low alloy high strength structural steel plate

Q390、Q420

A、B、C、D、E

Thickness6--25

GB/T3274-2007 

Mutual agreement

Thickness＞25-60

GB/T3274-2007 

Mutual agreement

Q460

C

Thickness6--25

GB/T 1591-2008

Mutual agreement

Thickness＞25-40

GB/T 1591-2008

Mutual agreement

Low alloy high strength structural steel plate

AH60

C

Thickness6--25

Q/AGJ01.017-2009

Mutual agreement

Thickness＞25-40

Q/AGJ01.017-2009

Mutual agreement

Hot rolled structural steel plate for hull 

A、B、D

Thickness6-36

LR Provision, BV Provision, DNV Provision, ABS Provision, GL Provision, CCS Provision,  RINA Provision, KR Provision

Hot rolled structural steel plate for hull

AH32

Width：

LR Provision, BV Provision

DH32

2170-3250

ABS Provision

AH36

Length：

KR Provision

DH36

4000-18000

RINA Provision

A32、D32、A36、D36

DNV Provision, GL Provision

CCS Provision

Designation

Brand

Quality grade

Dimension(mm)

Stock size
（mm）

Executive technical standard

Structural steel plate for bridge         

Q235q

C、D、E

Thickness6-32

For steckel mill, Thickness6-8   Width1600-3000    Thickness>8-12 Width1600-3150    Thickness>12   Width1600-3250    Length4000-18000    For Medium plate mill, Thickness6-25  Width1700-2450    Thickness>25   Width1500-2500    Length4000-13000    

GB/T 714-2008

Q370q

C(Z15、Z25、Z35）、D(Z15、Z25、Z35）、E(Z15、Z25、Z35）

Q345q

Thickness6-32

Q420q

C(Z15、Z25、Z35）、D(Z15、Z25、Z35）、E(Z15、Z25、Z35）

Thickness6-30

GB/T 714-2008

Structural steel plate for bridge            

Q235q

C、D、E

Thickness6-50

GB/T 714-2008

Q345q、Q370q

C(Z15、Z25、Z35）、D(Z15、Z25、Z35）、E(Z15、Z25、Z35）

Thickness6-40(wherein the thickness of Q345qC and D is 6-50）

Q420q

GR345(GR50)

Thickness8-40

Technical agreement

 Hot rolled carbon structural steel Plate

Q235

AZ15、AZ25、AZ35、BZ15、BZ25、BZ35、CZ15、CZ25、CZ35、DZ15、DZ25、DZ35

Thickness15-30

GB/T 3274-2007
GB/T 5313-2010

Hot rolled low alloy structural steel plate           

 Q345、Q390、Q420  

AZ15、AZ25、AZ35、BZ15、BZ25、BZ35、CZ15、CZ25、CZ35、DZ15、DZ25、DZ35、EZ15、EZ25、EZ35

Thickness15-30

GB/T 3274-2007

Hot rolled low alloy structural steel plate           

Q390、Q420

AZ15、AZ25、AZ35、BZ15、BZ25、BZ35、CZ15、CZ25、CZ35、DZ15、DZ25、DZ35、EZ15、EZ25、EZ35

Thickness15-60

GB/T 3274-2007

Steel plate for building structure            

Q235GJ 、Q345GJ    

B(Z15、Z25、Z35）、C(Z15、Z25、Z35）、D(Z15、Z25、Z35）、E(Z15、Z25、Z35）

Thickness6-40

GB/T 19879-2005

Steel plate for building structure                     

Q390GJ、Q420GJ                                       Q460GJ

C(Z15、Z25、Z35）、D(Z15、Z25、Z35）、E(Z15、Z25、Z35）

Thickness6-60

GB/T 19879-2005

Steel plate for boiler and pressure vessel

Q245R、Q345R

6-60

For steckel mill, Thickness6-8   Width1600-3000    Thickness>8-12 Width1600-3150    Thickness>12   Width1600-3250    Length4000-18000    For Medium plate mill,Thickness6-25  Width1700-2450    Thickness>25   Width1500-2500    Length4000-13000

GB713-2008

Q370R

10-60

Steel plate for boiler and pressure vessel

Q345RZ15、Q345RZ25、Q345RZ35

15-50

GB713-2008

Low alloy steel plate for low temperature pressure vessel

16MnDR

6-60

GB3531-2008

European standard: normalized-as weldable structural steel plate with fine grain

S275N、S275NL、S355N、S355NL(含Z15、Z25、Z35)

6-60

EN10025-3:2004

Hot rolled low alloy high strength structural steel plate

Q345

A(Z15、Z25、Z35）、B(Z15、Z25、Z35）、C(Z15、Z25、Z35）、D(Z15、Z25、Z35）、E (Z15、Z25、Z35）

6-80

GB/T3274-2007

Hot rolled carbon structural medium Plate

Q235

A（Z15、Z25、Z35)、B（Z15、Z25、Z35)、C（Z15、Z25、Z35)、D（Z15、Z25、Z35)

6-100

GB/T3274-2007

Hot rolled structural steel plate for bridge            

Q345q、Q370q

C（Z15、Z25、Z35)、D（Z15、Z25、Z35)、E（Z15、Z25、Z35)

6-60

GB/T714-2008

Normal strength structural steel for hull

A、B、D、E

6-40

CCS

High strength structural steel for hull      

AH32/36、DH32/36、EH32/36

6-40

CCS

Low alloy high strength structural steel plate

Q460

D、E

Thickness6-40

GB/T 3274-2007

C

Thickness＞25-40

Low alloy high strength structural steel plate

Q460

D、E

Thickness6-60

GB/T 3274-2007   

C

Thickness＞40-60

Welded structural steel 

SM490A-H SM570-H

Thickness6-50

JIS G3106:2008 or Technical agreement

SM490A

Thickness＞40-50

JIS G3106:2008 or  Technical agreement

Hot rolled alloy structural medium plate

SS400B

Thickness6-60

For steckel mill, Thickness6-8   Width1600-3000    Thickness>8-12 Width1600-3150    Thickness>12   Width1600-3250    Length4000-18000    For Medium plate mill,Thickness6-25  Width1700-2450    Thickness>25   Width1500-2500    Length4000-13000    

Technical agreement

Alloyed high strength structural medium plate  

A36M-B

Thickness6-60

Technical agreement

Low alloy high strength structural heavy plate

Q345

A、B

Thickness＞40-80

GB/T 3274-2007   

Thickness＞50-80

C、D

Thickness＞40-50

GB/T 3274-2007   

Thickness＞50-60

Hot rolled carbon structural heavy plate 

Q235

A、B、C、D

Thickness＞50-100

GB/T 3274-2007