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GL Grade AH36 steel plate and LR Grade EH36 steel plate
Source:Xin Steel Industry   Date:2021/09/29

GL Grade AH36 steel plate and LR Grade EH36 steel plate both are high tensile low temperature shipbuilding steel plates.GL Grade AH36 steel plate shall be done low temperature impact test at 0 Deg.C complying to Germanischer Lloyd (GL).LR Grade EH36 steel plate shall be done impact test at low temperature -40 Degree Centigrade.GL Grade AH36 steel plate and LR Grade EH36 steel plate have the same chemical composition and mechanical properties.


TMCP or Normalized heat treatment shall be done for GL Grade AH36 steel plate and LR Grade EH36 steel plate.Some shipyards demand shot blasting and painting comply to ISO SA2.5 standard when delivery of these GL Grade AH36 steel plate.The painting color can be choosed from Gray and red.EN 10204 3.2 mill certificate would be issued from steel mill and witness by GL and LR marine surveyor.


LR EH36 steel plate and GL AH36 steel plate in chemical composition and mechanical property:

 

LR EH36 and GL AH36

Chemical composition: Heat Analysis  Max%

Standard

Grade

C

Mn

P

S

Si

Al min

Nb

V

Ti

Cu

Cr

Ni

Mo

LR

EH36

0.18

0.9-1.6

0.035

0.035

0.1-0.5

0.015

0.02-0.05

0.05-0.1

0.02

0.35

0.2

0.4

0.08

GL

AH36

0.18

0.9-1.6

0.035

0.035

0.1-0.5

0.015

0.02-0.05

0.05-0.1

0.02

0.35

0.2

0.4

0.08

Mechanical Properties:

Thickness

Yield strength

Tensile strength

Mpa  Min.

Mpa

LR

EH36

All

355

490-620

GL

AH36

All

355

490-620