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GL AH36TM

GL AH36TM  GL AH36TM  GL AH36TM

GL AH36TM  shipbuilding  steel  plate  and  sheet

GL AH36TM  Steel Description:
The steel for shipbuilding and oil platform---AH36TM, is the high tensile strength steel.
It is the Hull structural steel,with it's good toughness properties, higher strength,strong corrosion-resistance,the processing properties,and welding properties.This kind of steel can be used in the manufacture of the ocean ship's hull structure whose weight is above 10000 tons.
GL AH36TM Steel Application :
GL AH36TM is with good mechanical properties, welding performance, process performance. GL AH36TM is mainly used to manufacture  the ship hull structure of ocean, coastal and inland sea areas , shipyards, oil platforms, pipelines in the ocean, coastal power plants, port facilities and other structural parts.

GL AH36TM Steel chemical composition by [%]:

Grade

C max

Si max

Mn

P max

S max

Als min

Ti max

Cu max

Cr
max

Ni
max

Mo
max

Nb

V

GL
AH36TM

0.18

0.50

0.90-1.60

0.035

0.035

0.015

0.02

0.35

0.20

0.40

0.08

0.02-0.05

0.05-0.10

Note: Generally speaking CE will be ≤ 0.40%. If the delivery condition is TMPC, the CE will be : ≤ 0.38% (thickness ≤ 50mm),≤0.40%( when the thickness >50-100).
Ceq% =(C+Mn)/6+(Cr+Mo+V)/5+(Ni+Cu)/15.

As for AH36TM, if the thickness is under 12.5mm, the minimum Mn  is about 0.7%. Besides, aluminum, niobium or vanadium in which one or several elements of grain refinement elements should be added to AH36TM Steel.

GL AH36TM Steel  Mechanical properties:

Grade

Rm
(MPa)

Re(MPa) min

A% min

Akv/J min

GL
AH36
TM

490-630

355

21

E.T °C

Thickness (mm)

0

≤ 50

>50-70

>70-100

L

C

L

C

L

C

34

24

41

27

50

34

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

GL AH36TM Steel  Delivery state:

Grade

Fine grains elements

category

The thickness of steel

≤ 12

>12.5-20

>20-25

>25-35

>35-50

>50-100

GL
AH36TM

Nb+V or V

Plate/
sheet

A(50)

N(50),CR(50),TM(50)

N(50),CR(25),TM(50)

Profile steel

N(50),CR(50),TM(50),AR*(25)

-

Al or Al+Ti

Plate/
sheet

A(50)

AR*(25)

-

N(50),CR(50),TM(50)

N(50),CR(25),TM(50)

Profile steel

A(50)

N(50),CR(50),TM(50),AR*(25)

-

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 is Ton.(-) means without impact test.

Contrast in the different standard

ASTM A131M

TOCT 5521

BS LR

GB712

AH36

A36

AH36

A36

Shipbuilding steel,generally speaking,a hull structure steel , is to manufacture hull as the requirements of  register of shipping. Shipbuilding steel includes four grades,that is A,B,C,D. Grade A means impact test at 20°C; Grade B is impact test at 0°C; Grade C means impact test at -20°C; Grade D is impact test at -40°C. GL AH36TM shipbuilding plate has low alloy content, grain refinement elements like V, Ti, Nb, etc. Welding performance is superior. If you are interested in the steel,please contact us at any time.

 

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