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                                   LR GRADE A STEEL PLATE

 

 

Gangsteelis specialized in supplying LRgeneral strength steel plate in LR Grade A. For more information of Grade A steel plate, please check them in following:

 

LR GRADE Ageneral Strength Chemical Composition

Grade

The Element Max (%)

C

Si

Mn

P

S

Al

N

LR GRADE A

0.21

0.50

2.5×C%

0.035

0.035

 

 

Nb

V

Ti

Cu

Cr

Ni

Mo

 

 

 

 

 

 

 

Crack Sensitivity:  Pcm = (C+Si/30+Mn/20+Cu/20+Ni/60+Cr/20+Mo/15+V/10+5B)%
Carbon Equivalent:  Ceq = 【C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15】%

 

 

 

LR GRADE Ageneral strength property

Grade

 

Mechanical Property

Charpy V Impact Test

Thickness

Yield

Tensile

Elongation

Degree

Energy 1

Energy 2

LR GRADE A

mm

Min Mpa

Mpa

Min  %

20

J

J

t≤50

235

400-520

22%

20

27

50<t≤70

235

400-520

22%

24

34

70<t≤100

235

400-520

22%

27

41

Note: Energy 1 is transverse impact test, Energy 2 is longitudinal

 

Boiler steel plates| Alloy steel plates| High strength plate| Carbon steel plate| Stainless steel plate

 

 

Equivalent steel grade of LR GRADE A

DNV

GL

ABS

BV

CCS

NK

KR

RINA

NV A

GL-A

AB/A

BV/A

CCS/A

K A

R A

RI/A

 

 

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