Sep 08, 2025 Leave a message

What is ASTM A131 Grade FH40 Shipbuilding Steel Plate

A131 FH40 Shipbuilding Steel Plate for shipbuiling&platform.The Shipbuilding steel plate grade FH40 is the high tensile strength steel.FH40 shipbuilding steel is the Hull structural steel,with it's good toughness properties, higher strength,strong corrosion-resistance,the processing properties,and welding properties.ASTM A131 FH40 ship plate can be used in the manufacture of the ship's hull structure whose weight is more than 10000 tons.

 

ASTM A131 Grade FH40 Shipbuilding Steel Plate Chemical Composition and Mechanical Property

 

 

 

Grade

C %

Si %

Mn %

P %

S %

Al(acid soluble),min%

Cb

V

Ti

Cu

Cr

Ni

Mo

N

ASTM A131 FH40

0.16

0.10-0.50

0.90-1.60

0.025

0.025

0.015

0.02-0.05

0.05-0.10

0.02

0.35

0.20

0.40

0.08

0.009

 

Grade

Yield Strength (Mpa)

Tensile Strength
(MPa)

Elongation in8 in.[200mm]
(%)

Elongation in8 in.[200mm]
(%)

Impact Energy
(J)

Test Temperature(°C)

ASTM A131 FH40

≥390

510-650

≥19

≥22

37

-60

 

Equivalent steel grade of A131 FH40

DNV

GL

LR

BV

CCS

NK

KR

RINA

NV F40

GL-F40

LR/FH40

BV/FH40

CCS/F40

K F40

R F40

RI/F40

 

ASTM A131 Grade FH40 Offshore platform Steel plate Application

 

 

ASTM A131 Grade FH40 Shipbuilding steel plate is mainly used to Shipbuilding Project and Ocean Offshore Structural Project.

 

ASTM A131 Grade FH40 Shipbuilding Steel Plate Other Name

 

 

ASTM A131 Grade FH40 Shipbuilding steel plate, ASTM A131 Grade FH40 Ship steel plate, ASTM A131 Grade FH40 Marine steel plate, ASTM A131 Grade FH40 steel plate .

Additional Condition

 

 

UT(Ultrasonic examination), AR(As Hot Rolled only), TMCP(Thermal Mechanical Control Processing), N(Normalized), Q+T(Quenched and Tempered),Z Direction Test(Z15,Z25,Z35), Charpy V-Notch Impact Test, The Third Party Test (such as SGS Test), Coated or Shot Blasting and Painting.

 

Technical Requirements & Additional Services for A131GrFH40 steel plate

 

 

High tension test
Z-Test (Z15,Z25,Z35)
Low temperature impacting test
Ultrasonic test under ASTM A435,A577,A578
Cetificated by ABS,LR,GL,BV,DNV,KR,NK,CCS,RINA
Issued Orginal Mill test certificate under EN 10204 FORMAT 3.1/3.2
Shot blasting and Painting,Cutting and welding as per end user's demands

 

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