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LR Grade E-LR/E Shipbuilding Steel Plates

Steel Standard:LR (Lloyd’s Register)

Rolling Type:Shipbuilding steel plate,Common strength ship plate

Thickness:3mm-300mm

Width:1200mm-4200mm

Length:3000mm-18000mm

Heat Treatment:As Rolled/Control-rolled/TMCP/Normalised

LR Grade E-LR/E Shipbuilding Steel Plates Supplier

LR grade E steel is a kind of hot rolled general tensile strength steel. The LR E grade steel plates have yield strength of 34,100 psi (235 MPa), and ultimate tensile strength of 58,000 – 75,500 psi (400-520 MPa). LR steels come 4 grades in ordinary-strength steel for shipbuilding and grade E is the highest one of them.

 

Grade E shipbuilding Steel Application

LR E steel plate are almost exclusively used in the Shipbuilding Industry for the construction of structural parts of ships, barges and marine equipment. LR E Shipbuilding steel plates also can be used for ship repairing, the offshore oil drilling platform, the platform pipe joints and other components. The grade E steel is certified by LR –Lloyd’s Register of Shipping.

Specification Parameters
Basic Information

LR GRADE E general Strength Chemical Composition

Grade

The Element Max (%)

C

Si

Mn

P

S

Al

N

LR GRADE E

0.18

0.10-0.35

0.70

0.035

0.035

0.015

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 E general strength property

Grade

Mechanical Property

Charpy V Impact Test

Thickness

Yield

Tensile

Elongation

Degree

Energy 1

Energy 2

LR GRADE E

mm

Min Mpa

Mpa

Min  %

-40

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

 

Equivalent steel grade of LR GRADE E

DNV

GL

ABS

BV

CCS

NK

KR

RINA

NV E

GL-E

AB/E

BV/E

CCS/E

K E

R E

RI/E

Service Support
LR Grade E-LR/E Shipbuilding Steel Plates

Technical Requirements & Additional Services for LR Grade D Steel Plate:

♦ High tension test
♦ Z-Test (Z15,Z25,Z35)
♦ Low temperature impacting test
♦ Ultrasonic test under ASTM A435,A577,A578
♦ Cetificated by ABS,LR,GL,BV,DNV,KR,NK,CCS,RINA
♦ Issued Orginal Mill test certificate under EN 10204 FORMAT 3.1/3.2
♦ Shot blasting and Painting,Cutting and welding as per end user’s demands