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LR Grade B Marine Steel Plate Supplier

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 B, LR/B Shipbuilding Steel Plates Supplier and Manufacturer

LR grade B steel is a kind of hot rolled general tensile strength steel, LR B Shipbuilding steel plates also can beused for ship repairing, the offshore oil drilling platform, the platform pipe joints and other components.We are reputed and well known across the globe for their reliability and quality. These are easily available at very reasonableprice in market.

LR Grade B shipbuilding Steel Application:

LR B Shipbuilding steel plates can be used for ship repairing, the offshore oil drilling platform, the platform pipe joints and other components. LR B grades of steel plate are almost exclusively used in the Shipbuilding Industry for the construction of structural parts of ships, barges and marine equipment.

LR B Shipbuilding Steel Specification:

Thickness: 4mm to 260mm,
Width: 1200mm to 4000mm
Length: 3000mm to 18000mm.

Specification Parameters
Basic Information

LR GRADE B general Strength Chemical Composition

Grade

The Element Max (%)

C

Si

Mn

P

S

Al

N

LR GRADE B

0.21

0.35

0.80

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 B general strength property

Grade

Mechanical Property

Charpy V Impact Test

Thickness

Yield

Tensile

Elongation

Degree

Energy 1

Energy 2

LR GRADE B

mm

Min Mpa

Mpa

Min  %

0

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 B

DNV

GL

ABS

BV

CCS

NK

KR

RINA

NV B

GL-B

AB/B

BV/B

CCS/B

K B

R B

RI/B

Service Support
LR Grade B Marine Steel Plate Supplier

Technical Requirements & Additional Services for LR Grade B 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