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Grade A Shipbuilding steel plate

Grade A steel plate is used for shipbuiling's hull structure and platform. The shipbuilding steel plate grade A is the common tensile strength steel. It has good toughness properties and higher strength, strong corrosion-resistance,the processing properties,and welding properties.ASTM A131 Grade A steel plate  can be used in the manufacture of the ship's hull structure whose weight is below 10000 tons,and usually do navigation around coastal and river area.

Grade A shipbuiling steel plate specification:
Thickness: 4mm to 260mm,
Width: 1200mm to 4000mm
Length: 3000mm to 18000mm.

Grade A steel plate Chemical Composition


Grade

C max

Si max

Mn

P max

S max

Grade A

0.21

0.50

 ≥ 2.5C

0.035

0.035

Note: CE: C+1/6Mn 0.40%
Cu ≤ 0.35%,Ni ≤ 0.30%≤

Grade A steel plate Mechanical Property


Grade

Rm
(MPa)

Re(MPa) min

A% min

Akv/J min

Grade A

400-520

235

22

E.T °C

Thickness (mm)

20

50

>50-70

>70-100

L

C

L

C

L

C

-

-

34

24

41

27

 Note: In the list , Rm: tensile strength,Re: Yield strength,A%: elongation, E.T: experimental temperature,L: lengthways, C: crosswise.

Condition Of Delivery


Grade

category

The thickness of steel

≤12

>12.5-25

>25-35

>35-50

>50-100

Grade A

Plate/sheet

A(-)

N(-),TM(-)
CR(50)
AR*(50)

Profile steel

-

Note: 1. delivery condition: A =Any ; N=Normalized ; CR=Control Rolled ; TM=TMPC,Temperature - deformation control rolling; AR*= Can be hot rolled with the agreement of Classification Society ; CR*=Can be control rolled with the agreement of Classification Society .

2.The Figure in the ( ) means the sampling volume to do the impact test, the unit isTon.(-) means without impact test.Contrast in the different standard


ASTM A131M

TOCT 5521

JIS G3106

BS LR

GB712

Grade A

A

SM400A

A

A

As a Grade A ship steel supplier in China ,we keep more than 1000 tons Grade A ship steel spot every month, any need in Grade A ship steel, contact us!

Contact:
Tell: 0086-371-86151827, 0086-371-86011881
E-mail:bb@bebonchina.com


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Tags: mild shipbuilding steel grade A, grade A is a king of mild steel for shipbuilding, ABS/DNV/LR/GL/BV A shipbuilding steel
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