EN10225 Grade S420G2+QT Offshore Platform Steel Plate

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