A131 Grade A A131 Grade B shipbuilding steel plate

Source:Yusheng steel

Shipbuilding steel plate and sheet A131 Grade A and A131 Grade B are common strength steel plate for hull constructions.Steel Plate A131 Grade A owned the minimum yield strength at 235 Mpa and done low temperature impacting test at room temperature.Steel plate A131 Grade B owned the yield strength above 235 Mpa,but the Low temperature impacting test shall be done at zero centi degree.Our mill can roll these common shipbuilding steel sheet A131 Grade A and A131 Grade B under As rolled,TMCP or Normalized conditions.And the maximum rolling thickness shall reach 300mm and guarantee the steel properity,also can get the approved from nine international classification societies,such as ABS,LR,GL,CCS,NK,DNV,BV,RINA,KR.

 

For the wide heavy steel plates with Grade A131 Gr A and A131 Gr B,our engineers suggest that end users better to choose done Z-test when rolling,they can improved the steel properity in thickness direction.There are three class for choosing,such as Z15,Z25 and Z35.

 

Mechanical properties for A131 Grade A shipbuilding steel plate:

 

Yield strength (Mpa)

Tensile strength (Mpa)

Impacting Test

temperature ()

235

400-520

20

 

 

 

 

 

Chemical composition of cast analysis for A131 Grade A marine steel plate (Max %):

 

C

Si

Mn

P

S

0.21

0.50

Min. 2.5*C

0.035

0.035

 

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