Tel:86 371 86151827   E-mail: [email protected]
BBN Steel Co.,Ltd
ba
Product Categories
Hull structure use GL marine grade steel plates

Hull structure use GL marine grade steel plates

Hull structure use GL marine grade steel plates

Thickness: 3-150mm
Width: 1220-4200mm
Length: 5000-18000mm Note:coil thickness≤25mm

Pageviews:

GL marine grade steel plates are hull structure steel intended primarily for use in ship construction. Therefore, GL marine grade steel plates are also called LR hull structural steel plates or LR shipbuilding steel plates. GL marine grade steel plates can be divided into general strength GL marine grade steel plates and higher strength GL marine grade steel plates, based on the minimum yield point.

The general strength GL marine grade steel plates mainly cover below steel grades:
GL grade A, GL grade B, GL grade D, GL grade E.

The higher strength GL marine grade steel plates mainly cover below steel grades:
GL grade AH32, AH36, AH40, DH32, DH36, DH40, EH32, EH36, EH40, FH32, FH36, FH40.

Chemical composition of ordinary-strength GL marine grade steel plates:


Element

GL grade A

GL grade B

GL grade D

GL grade E

 

Deoxidation and Thickness (t) in mm

 

t>2.0 in [50mm]

t>2.0 in [50mm]

t>1.0 in [50mm]

 

C

0.21

0.21

0.21

0.18

Mn min

2.5XC

0.6

0.6

0.7

Si

0.5

0.35

0.10-0.35

0.10-0.35

P

0.035

0.035

0.035

0.035

S

0.035

0.035

0.035

0.035

Ni

-

-

-

 

Cr

-

-

-

-

Mo

-

-

-

-

Cu

-

-

-

-

C+Mn/6

0.4

0.4

0.4

0.4


Chemical composition of higher-strength GL marine grade steel plates:


Element

Chemical composition (heat analysis% max)

 

AH/DH/EH32 AH/DH/EH36
and AH/DH/EH40

FH32/36/40

C

0.18

0.16

Mn

0.90-1.60

0.90-1.60

Si

0.10-0.50

0.10-0.50

P

0.035

0.025

S

0.035

0.025

Al min

0.015

0.015

Cb

0.02-0.05

0.02-0.05

V

0.05-0.10

0.05-0.10

Ti

0.02

0.02

Cu

0.35

0.35

Cr

0.20

0.20

Ni

0.40

0.40

Mo

0.08

0.08

N

-

0.009


Mechanical properties of ordinary-strength and higher-strength GL marine grade steel plates:


Grade

Tensile Strength ksi [Mpa]

Yield Strength min ksi [Mpa]

Elongation in 8 in [200mm] %

Elongation in 2 in [50mm] min %

Ordinary strength

58-75 [400-520]

34 [235]

21

24

A B D E

Higher strength

 

AH32 DH32 EH32 FH32

64-85 [440-590]

46 [315]

19

22

AH36 DH36 EH36 FH36

71-90 [490-620]

51 [355]

19

22

AH40 DH40 EH40 FH40

74-94 [510-650]

57 [390]

19

22

GL marine grade steel plates are as popular as ABS marine grade steel plates, LR marine grade steel plates, BV marine grade steel plates, CCS marine grade steel plates in the international market. Besides, we also cooperated with other classification societies such as RINA, NK, KR, RMRS, etc. to meet diversified classification society certificates requirements of the customers’ projects.

Previous:LR marine grade steel plates for shipbui Next:CCS marine grade steel plates for ship

Related Products

Contact Us
Henan BBN Steel Co.,Ltd
Address: XICHENG SCIENCE & TECHNOLOGY BUILDING HIGH-TECH DEVELOPMENT ZONE, ZHENGZHOU, CHINA
Tel: +86-371-86151827
E-mail: [email protected]
Copyright © Henan BBN Steel Co.,Ltd
  • facebook
  • twitter
  • google
  • linkedin
  • pinterest
  • skype