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EN10225 Standard Shipbuilding Steel Plate

EN 10225 Offshore Platform Steel Plate Specifications :
Steel Standard: EN 10225
Rolling Type: Oil and offshore platform steel plate
Thickness: 6mm-300mm
Width: 1500mm-4200mm
Length: 3000mm-18000mm

Description

EN 10225 Offshore Platform Steel Plate Specifications :

Steel Standard: EN 10225

Rolling Type: Oil and offshore platform steel plate

Thickness: 6mm-300mm

Width: 1500mm-4200mm

Length: 3000mm-18000mm

Heat Treatment: Thermo-Mechanical Control Process (TMCP)

Grade:

S355G2+N S355G3+N S355G7+N S355G8+N
S355G9+N S355G10+N S355G5+M S355G6+M
S355G7+M S355G8+M S355G9+M S355G10+M
S420G1+M S420G2+M S420G1+QT S420G2+QT
S460G1+M S460G2+M S460G1+QT S460G2+QT

Density: 7.85 g/cm ³

Standard: EN 10225: 2009 Weldable structural steels for fixed offshore structures. Technical delivery conditions

EN10225 Grade S355G5+M Offshore Platform Steel Plate

EN10225 Grade S355G2+N Offshore Platform Steel Plate Chemical Composition and Mechanical Property

Grade

Steel No.

C
max

Si

Mn

P
max

S
max

Cr
max

Mo
max

Ni
max

Al(total)

Cu
max

N
max

Nb
max

Ti
max

V
max

Cr+Mo+Ni+Cu
max

Nb+V
max

Nb+V+Ti
max

S355G2+N

1.8801+N

0.2

0.5

0.90-1.65

0.035

0.03

0.3

0.1

0.5

0.02min

0.35

0.015

0.06

0.03

0.12

--

--

--

Grade

Steel No.

Tensile Strength
Rm2

Minimum Yield strength for thickness t(mm)

Minimum elongation A on gauge length

Minimum average CharpyV-notch
impact energy

Thickness macximum

Thickness t(mm)≤100

Thickness t(mm) >100

t≤16

16<t≤25

25<t≤40

40<t≤63

63<t≤100

100<t≤150

Temp.

Energy

Mpa

Mpa

Mpa

Mpa

Mpa

Mpa

Mpa

Mpa

%

J

mm

S355G2+N

1.8801+N

470 to 630

 

355

345

--

--

--

--

22

-20

50

20

 

EN10225 Grade S355G3+N Offshore Platform Steel Plate Chemical Composition and Mechanical Property

 

Grade

Steel

C

Si

Mn

Pmax

S

Cr

Mo

Ni

Al(total)

Cu

N

Nb

Ti

V

Cr+Mo+Ni+Cu

Nb+V
max

Nb+V+Ti

S355G3+N

1.8802+N

0.18

0.5
max

0.90-1.65

0.03

0.025

0.3

0.1

0.5

0.02min

0.35

0.015

0.06

0.03

0.12

--

--

--

Grade

Steel No.

Tensile Strength
Rm2

Minimum Yield strength for thickness t(mm)

Minimum elongation A on gauge length

Minimum average CharpyV-notch
impact energy

Thickness macximum

Thickness t(mm)≤100

Thickness t(mm) >100

t≤16

16<t≤25

25<t≤40

40<t≤63

63<t≤100

100<t≤150

Temp.

Energy

Mpa

Mpa

Mpa

Mpa

Mpa

Mpa

Mpa

Mpa

%

J

mm

S355G3+N

1.8802+N

470 to 630

 

355

345

345

--

--

--

22

-40

50

40

EN10225 Grade S355G8+N Offshore Platform Steel Plate Chemical Composition and Mechanical Property

Grade

Steel

C

Si

Mn

Pmax

S

Cr

Mo

Ni

Al(total)

Cu

N

Nb

Ti

V

Cr+Mo+Ni+Cu

Nb+V
max

Nb+V+Ti

S355G8+N

1.8810+N

0.14

0.15 to0.55

1.00 to1.65

0.02

0.01

0.25

0.08

0.5

0.015 to 0.055

0.3

0.01

0.04

0.025

0.06

0.9

0.06

0.08

Grade

Steel No.

Tensile Strength
Rm2

Minimum Yield strength for thickness t(mm)

Minimum elongation A on gauge length

Minimum average CharpyV-notch
impact energy

Thickness macximum

Thickness t(mm)≤100

Thickness t(mm) >100

t≤16

16<t≤25

25<t≤40

40<t≤63

63<t≤100

100<t≤150

Temp.

Energy

Mpa

Mpa

Mpa

Mpa

Mpa

Mpa

Mpa

Mpa

%

J

mm

S355G8+N

1.8810+N

470 to 630

460-620

355

355

345

335

325

320

22

-40

50

150

EN10225 Grade S355G10+N Offshore Platform Steel Plate Chemical Composition and Mechanical Property

Grade

Steel

C

Si

Mn

Pmax

S

Cr

Mo

Ni

Al(total)

Cu

N

Nb

Ti

V

Cr+Mo+Ni+Cu

Nb+V
max

Nb+V+Ti

S355G10+N

1.8813+N

0.12

0.15 to0.55

1.65
max

0.015

0.05

0.2

0.08

0.7

0.015 to 0.055

0.3

0.01

0.03

0.025

0.06

--

0.06

0.08

Grade

Steel No.

Tensile Strength
Rm2

Minimum Yield strength for thickness t(mm)

Minimum elongation A on gauge length

Minimum average CharpyV-notch
impact energy

Thickness macximum

Thickness t(mm)≤100

Thickness t(mm) >100

t≤16

16<t≤25

25<t≤40

40<t≤63

63<t≤100

100<t≤150

Temp.

Energy

Mpa

Mpa

Mpa

Mpa

Mpa

Mpa

Mpa

Mpa

%

J

mm

S355G10+N

1.8813+N

470 to 630

460-620

355

355

345

335

325

320

22

-40

50

150

EN10225 Grade S355G9+N Offshore Platform Steel Plate Chemical Composition and Mechanical Property

Grade

Steel

C

Si

Mn

Pmax

S

Cr

Mo

Ni

Al(total)

Cu

N

Nb

Ti

V

Cr+Mo+Ni+Cu

Nb+V
max

Nb+V+Ti

S355G9+N

1.8811+N

0.12

0.15 to0.55

1.65
max

0.02

0.01

0.2

0.08

0.7

0.015 to 0.055

0.3

0.01

0.03

0.025

0.06

--

0.06

0.08

Grade

Steel No.

Tensile Strength
Rm2

Minimum Yield strength for thickness t(mm)

Minimum elongation A on gauge length

Minimum average CharpyV-notch
impact energy

Thickness macximum

Thickness t(mm)≤100

Thickness t(mm) >100

t≤16

16<t≤25

25<t≤40

40<t≤63

63<t≤100

100<t≤150

Temp.

Energy

Mpa

Mpa

Mpa

Mpa

Mpa

Mpa

Mpa

Mpa

%

J

mm

S355G9+N

1.8811+N

470 to 630

460-620

355

355

345

335

325

320

22

-40

50

150

EN10225 Grade S355G6+M Offshore Platform Steel Plate Chemical Composition and Mechanical Property

Grade

Steel

C

Si

Mn

Pmax

S

Cr

Mo

Ni

Al(total)

Cu

N

Nb

Ti

V

Cr+Mo+Ni+Cu

Nb+V
max

Nb+V+Ti

S355G6+M

1.8805+M

0.14

0.5
max

1.6
max

0.03

0.025

--

0.2

0.3

0.02min

--

0.015

0.05

0.05

0.1

--

--

--

Grade

Steel No.

Tensile Strength
Rm2

Minimum Yield strength for thickness t(mm)

Minimum elongation A on gauge length

Minimum average CharpyV-notch
impact energy

Thickness macximum

Thickness t(mm)≤100

Thickness t(mm) >100

t≤16

16<t≤25

25<t≤40

40<t≤63

63<t≤100

100<t≤150

Temp.

Energy

Mpa

Mpa

Mpa

Mpa

Mpa

Mpa

Mpa

Mpa

%

J

mm

S355G6+M

1.8805+M

470 to 610

 

355

345

345

--

--

--

22

-40

50

40

EN10225 Grade S355G5+M Offshore Platform Steel Plate Chemical Composition and Mechanical Property

Grade

Steel

C

Si

Mn

Pmax

S

Cr

Mo

Ni

Al(total)

Cu

N

Nb

Ti

V

Cr+Mo+Ni+Cu

Nb+V
max

Nb+V+Ti

S355G5+M

1.8804+M

0.14

0.5
max

1.6
max

0.035

0.03

--

0.2

0.3

0.02min

--

0.015

0.05

0.05

0.1

--

--

--

Grade

Steel No.

Tensile Strength
Rm2

Minimum Yield strength for thickness t(mm)

Minimum elongation A on gauge length

Minimum average CharpyV-notch
impact energy

Thickness macximum

Thickness t(mm)≤100

Thickness t(mm) >100

t≤16

16<t≤25

25<t≤40

40<t≤63

63<t≤100

100<t≤150

Temp.

Energy

Mpa

Mpa

Mpa

Mpa

Mpa

Mpa

Mpa

Mpa

%

J

mm

S355G5+M

1.8804+M

470 to 610

 

355

345

--

--

--

--

22

-20

50

20

EN10225 Grade S355G8+M Offshore Platform Steel Plate Chemical Composition and Mechanical Property

Grade

Steel

C

Si

Mn

Pmax

S

Cr

Mo

Ni

Al(total)

Cu

N

Nb

Ti

V

Cr+Mo+Ni+Cu

Nb+V
max

Nb+V+Ti

S355G8+M

1.8810+M

0.14

0.15 to0.55

1.00 to1.65

0.02

0.01

0.25

0.08

0.5

0.015 to 0.055

0.3

0.01

0.04

0.025

0.06

0.9

0.06

0.08

Grade

Steel No.

Tensile Strength
Rm2

Minimum Yield strength for thickness t(mm)

Minimum elongation A on gauge length

Minimum average CharpyV-notch
impact energy

Thickness macximum

Thickness t(mm)≤100

Thickness t(mm) >100

t≤16

16<t≤25

25<t≤40

40<t≤63

63<t≤100

100<t≤150

Temp.

Energy

Mpa

Mpa

Mpa

Mpa

Mpa

Mpa

Mpa

Mpa

%

J

mm

S355G8+M

1.8810+M

470 to 630

--

355

355

345

335

325

--

22

-40

50

100

EN10225 Grade S355G7+M Offshore Platform Steel Plate Chemical Composition and Mechanical Property

Grade

Steel

C

Si

Mn

Pmax

S

Cr

Mo

Ni

Al(total)

Cu

N

Nb

Ti

V

Cr+Mo+Ni+Cu

Nb+V
max

Nb+V+Ti

S355G7+M

1.8808+M

0.14

0.15 to0.55

1.00 to1.65

0.02

0.01

0.25

0.08

0.5

0.015 to 0.055

0.3

0.01

0.04

0.025

0.06

0.9

0.06

0.08

Grade

Steel No.

Tensile Strength
Rm2

Minimum Yield strength for thickness t(mm)

Minimum elongation A on gauge length

Minimum average CharpyV-notch
impact energy

Thickness macximum

Thickness t(mm)≤100

Thickness t(mm) >100

t≤16

16<t≤25

25<t≤40

40<t≤63

63<t≤100

100<t≤150

Temp.

Energy

Mpa

Mpa

Mpa

Mpa

Mpa

Mpa

Mpa

Mpa

%

J

mm

S355G7+M

1.8808+M

470 to 630

--

355

355

345

335

325

--

22

-40

50

100

EN10225 Grade S355G10+M Offshore Platform Steel Plate Chemical Composition and Mechanical Property

Grade

Steel

C

Si

Mn

Pmax

S

Cr

Mo

Ni

Al(total)

Cu

N

Nb

Ti

V

Cr+Mo+Ni+Cu

Nb+V
max

Nb+V+Ti

S355G10+M

1.8813+M

0.12

0.15 to0.55

1.65
max

0.015

0.05

0.2

0.08

0.7

0.015 to 0.055

0.3

0.01

0.03

0.025

0.06

--

0.06

0.08

Grade

Steel No.

Tensile Strength
Rm2

Minimum Yield strength for thickness t(mm)

Minimum elongation A on gauge length

Minimum average CharpyV-notch
impact energy

Thickness macximum

Thickness t(mm)≤100

Thickness t(mm) >100

t≤16

16<t≤25

25<t≤40

40<t≤63

63<t≤100

100<t≤150

Temp.

Energy

Mpa

Mpa

Mpa

Mpa

Mpa

Mpa

Mpa

Mpa

%

J

mm

S355G10+M

1.8813+M

470 to 630

--

355

355

345

335

325

--

22

-40

50

100

EN10225 Grade S355G9+M Offshore Platform Steel Plate Chemical Composition and Mechanical Property

Grade

Steel

C

Si

Mn

Pmax

Cr

Mo

Ni

Al(total)

Cu

N

Nb

Ti

V

Cr+Mo+Ni+Cu

Nb+V
max

Nb+V+Ti

S355G9+M

1.8811+M

0.12

0.15 to0.55

1.65
max

0.02

0.2

0.08

0.7

0.015 to 0.055

0.3

0.01

0.03

0.025

0.06

--

0.06

0.08

Grade

Steel No.

Tensile Strength
Rm2

Minimum Yield strength for thickness t(mm)

Minimum elongation A on gauge length

Minimum average CharpyV-notch
impact energy

Thickness macximum

Thickness t(mm)≤100

Thickness t(mm) >100

t≤16

16<t≤25

25<t≤40

40<t≤63

63<t≤100

100<t≤150

Temp.

Energy

Mpa

Mpa

Mpa

Mpa

Mpa

Mpa

Mpa

Mpa

%

J

mm

S355G9+M

1.8811+M

470 to 630

--

355

355

345

335

325

--

22

-40

50

100

EN10225 Grade S420G2+M Offshore Platform Steel Plate

EN10225 Grade S420G2+M Offshore Platform Steel Plate Chemical Composition and Mechanical Property

Grade

Steel

C

Si

Mn

Pmax

Cr

Mo

Ni

Al(total)

Cu

N

Nb

Ti

V

Cr+Mo+Ni+Cu

Nb+V
max

Nb+V+Ti

S420G2+M

1.8857+M

0.14

0.15 to0.55

1.65
max

0.02

0.25

0.25

0.7

0.015 to 0.055

0.3

0.01

0.04

0.025

0.08

0.9

0.9

0.11

Grade

Steel No.

Tensile Strength for thickness(mm)
Rm2

Minimum Yield strength for thickness t(mm)

Minimum elongation A on gauge length

Minimum average CharpyV-notch
impact energy

Thickness macximum

t≤40

40<t≤63

t≤16

16<t≤40

40<t≤63

63<t≤80

80<t≤100

Temp.

Energy

Mpa

Mpa

Mpa

Mpa

Mpa

Mpa

Mpa

%

J

mm

S420G2+M

1.8857+M

500 to 660

480 to 640

420

400

390

380

380

19

-40

60

100

EN10225 Grade S420G1+M Offshore Platform Steel Plate Chemical Composition and Mechanical Property

Grade

Steel

C

Si

Mn

Pmax

S

Cr

Mo

Ni

Al(total)

Cu

N

Nb

Ti

V

Cr+Mo+Ni+Cu

Nb+V
max

Nb+V+Ti

S420G1+M

1.8830+M

0.14

0.15 to0.55

1.65
max

0.02

0.01

0.25

0.25

0.7

0.015 to 0.055

0.3

0.01

0.04

0.025

0.08

0.9

0.9

0.11

Grade

Steel No.

Tensile Strength for thickness(mm)
Rm2

Minimum Yield strength for thickness t(mm)

Minimum elongation A on gauge length

Minimum average CharpyV-notch
impact energy

Thickness macximum

t≤40

40<t≤63

t≤16

16<t≤40

40<t≤63

63<t≤80

80<t≤100

Temp.

Energy

Mpa

Mpa

Mpa

Mpa

Mpa

Mpa

Mpa

%

J

mm

S420G1+M

1.8830+M

500 to 660

480 to 640

420

400

390

380

380

19

-40

60

100

EN10225 Grade S420G2+QT Offshore Platform Steel Plate Chemical Composition and Mechanical Property

Grade

Steel

C

Si

Mn

Pmax

S

Cr

Mo

Ni

Al(total)

Cu

N

Nb

Ti

V

Cr+Mo+Ni+Cu

Nb+V
max

Nb+V+Ti

S420G2+QT

1.8857+QT

0.14

0.15 to0.55

1.65
max

0.02

0.007

0.25

0.25

0.7

0.015 to 0.055

0.3

0.01

0.04

0.025

0.08

0.9

0.9

0.11

Grade

Steel No.

Tensile Strength for thickness(mm)
Rm2

Minimum Yield strength for thickness t(mm)

Minimum elongation A on gauge length

Minimum average CharpyV-notch
impact energy

Thickness macximum

t≤40

40<t≤63

t≤16

16<t≤40

40<t≤63

63<t≤80

80<t≤100

Temp.

Energy

Mpa

Mpa

Mpa

Mpa

Mpa

Mpa

Mpa

%

J

mm

S420G2+QT

1.8857+QT

500 to 660

480 to 640

420

400

390

380

380

19

-40

60

100

EN10225 Grade S420G1+QT Offshore Platform Steel Plate Chemical Composition and Mechanical Property

Grade

Steel

C

Si

Mn

Pmax

S

Cr

Mo

Ni

Al(total)

Cu

N

Nb

Ti

V

Cr+Mo+Ni+Cu

Nb+V
max

Nb+V+Ti

S420G1+QT

1.8830+QT

0.14

0.15 to0.55

1.65
max

0.02

0.01

0.25

0.25

0.7

0.015 to 0.055

0.3

0.01

0.04

0.025

0.08

0.9

0.9

0.11

Grade

Steel No.

Tensile Strength for thickness(mm)
Rm2

Minimum Yield strength for thickness t(mm)

Minimum elongation A on gauge length

Minimum average CharpyV-notch
impact energy

Thickness macximum

t≤40

40<t≤63

t≤16

16<t≤40

40<t≤63

63<t≤80

80<t≤100

Temp.

Energy

Mpa

Mpa

Mpa

Mpa

Mpa

Mpa

Mpa

%

J

mm

S420G1+QT

1.8830+QT

500 to 660

480 to 640

420

400

390

380

380

19

-40

60

100

EN10225 Grade S420G1+M Offshore Platform Steel Plate

EN10225 Grade S460G2+M Offshore Platform Steel Plate Chemical Composition and Mechanical Property

Grade

Steel

C

Si

Mn

Pmax

S

Cr

Mo

Ni

Al(total)

Cu

N

Nb

Ti

V

Cr+Mo+Ni+Cu

Nb+V
max

Nb+V+Ti

S460G2+M

1.8887+M

0.14

0.15 to0.55

1.65
max

0.02

0.007

0.25

0.25

0.7

0.015 to 0.055

0.3

0.01

0.04

0.025

0.08

0.9

0.9

0.11

Grade

Thickness
ranges(mm)

≤16

16<t≤25

25<t≤40

40<t≤63

63<t≤80

80<t≤100

S460G2+M

Minimum Yield strength
Mpa

460

440

420

415

405

400

Tensile Strength
Mpa

540 to 700

530 to 690

520 to 680

515 to 675

505 to 665

500 to 660

Minimum elongation A on gauge length
%

17

17

17

17

17

17

Minimum average CharpyV-notch
impact energy value

60J at -40℃

Charpy V-notch mid-thickness verifications are also required for thickness over 40 mm.
1 Mpa=1N/mm2

EN10225 Grade S460G1+M Offshore Platform Steel Plate Chemical Composition and Mechanical Property

Grade

Steel

C

Si

Mn

Pmax

S

Cr

Mo

Ni

Al(total)

Cu

N

Nb

Ti

V

Cr+Mo+Ni+Cu

Nb+V
max

Nb+V+Ti

S460G1+M

1.8878+M

0.14

0.15 to0.55

1.65
max

0.02

0.01

0.25

0.25

0.7

0.015 to 0.055

0.3

0.01

0.04

0.025

0.08

0.9

0.9

0.11

Grade

Thickness
ranges(mm)

≤16

16<t≤25

25<t≤40

40<t≤63

63<t≤80

80<t≤100

S460G1+M

Minimum Yield strength
Mpa

460

440

420

415

405

400

Tensile Strength
Mpa

540 to 700

530 to 690

520 to 680

515 to 675

505 to 665

500 to 660

Minimum elongation A on gauge length
%

17

17

17

17

17

17

Minimum average CharpyV-notch
impact energy value

60J at -40℃

Charpy V-notch mid-thickness verifications are also required for thickness over 40 mm.
1 Mpa=1N/mm2

EN10225 Grade S460G2+QT Offshore Platform Steel Plate Chemical Composition and Mechanical Property

Grade

Steel

C

Si

Mn

Pmax

S

Cr

Mo

Ni

Al(total)

Cu

N

Nb

Ti

V

Cr+Mo+Ni+Cu

Nb+V
max

Nb+V+Ti

S460G2+QT

1.8887+QT

0.14

0.15 to0.55

1.65
max

0.02

0.007

0.25

0.25

0.7

0.015 to 0.055

0.3

0.01

0.04

0.025

0.08

0.9

0.9

0.11

Grade

Thickness
ranges(mm)

≤16

16<t≤25

25<t≤40

40<t≤63

63<t≤80

80<t≤100

S460G2+QT

Minimum Yield strength
Mpa

460

440

420

415

405

400

Tensile Strength
Mpa

540 to 700

530 to 690

520 to 680

515 to 675

505 to 665

500 to 660

Minimum elongation A on gauge length
%

17

17

17

17

17

17

Minimum average CharpyV-notch
impact energy value

60J at -40℃

Charpy V-notch mid-thickness verifications are also required for thickness over 40 mm.
1 Mpa=1N/mm2

EN10225 Grade S460G1+QT Offshore Platform Steel Plate Chemical Composition and Mechanical Property

Grade

Steel

C

Si

Mn

Pmax

S

Cr

Mo

Ni

Al(total)

Cu

N

Nb

Ti

V

Cr+Mo+Ni+Cu

Nb+V
max

Nb+V+Ti

S460G1+QT

1.8878+QT

0.14

0.15 to0.55

1.65
max

0.02

0.01

0.25

0.25

0.7

0.015 to 0.055

0.3

0.01

0.04

0.025

0.08

0.9

0.9

0.11

Grade

Thickness
ranges(mm)

≤16

16<t≤25

25<t≤40

40<t≤63

63<t≤80

80<t≤100

S460G1+QT

Minimum Yield strength
Mpa

460

440

420

415

405

400

Tensile Strength
Mpa

540 to 700

530 to 690

520 to 680

515 to 675

505 to 665

500 to 660

Minimum elongation A on gauge length
%

17

17

17

17

17

17

Minimum average CharpyV-notch
impact energy value

60J at -40℃

Charpy V-notch mid-thickness verifications are also required for thickness over 40 mm.
1 Mpa=1N/mm2

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