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Home > products> LR Grade A B D E Shipbuilding Steel Plate
LR Grade A B D E Shipbuilding Steel Plate image
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LR Grade A B D E Shipbuilding Steel Plate

Item : LR Shipbuilding Plate

Steel Grade : LR Grade A,LR Grade B,LR Grade D,LR Grade E

Thickness : 3mm to 150mm

Width : 1220mm to 4200m

Length : 5000mm to 18000mm

Relative steel grades : LR/A,LR/B,LR/D,LR/E,LR/A32,LR/A36,LR/A40, LR/D32,LR/D36,LR/D40,LR/E32,LR/E36,LR/E40,LR/F32,LR/F36,LR/F40

Main application : Used primarily in structural applications in marine and shipping industry for barges,ships,small vessels,support structures and various type of equipment with LR (Lloyd’s Register) certificate.

Surface Treatment : Coated,Shop primer painting

LR E shipbuilding plate property LR Grade B steel plate LR/A,Grade A STEEL PLATE LR A/B/D/E LR Grade A Shipbuilding Steel Plate

LR Grade A B D E Shipbuilding Steel Plate Supplier and Manufacturer

Lloyd’s Register Grades A, B, D, and E are normal-strength structural steels with a minimum specified yield strength of 34 ksi and specified minimum Charpy V-notch impact toughness properties.

LR Ship Class is a British Lloyd’s Register classification society. The Lloyd’s Register (LR) specification defines the requirements for normal strength, higher strength and high strength tempered steels used in the construction and repair of ships and other offshore structures.The main grades of the LR Ship Class are:  LR Class A, B, D, E, AH36, DH36, EH36, AH32, DH32, AH40, and so on.

Applications

Typical applications include ships and other structural applications.

 

Size and Dimensions

Thickness: 3 MM – 200 MM

Width: 1220 MM – 4200 MM

Length: 5000-18000mm

Customize: Available

 

 

Specification Parameters
Basic Information

Mechanical Properties

Tensile testing is performed in the transverse direction.

Grade
Thickness
(in)
Yield strength
(min ksi)
Tensile strength
(ksi)
Elongation A5 1)
(min %)
Grade A
0.1875 – 2.00
34
58 – 75
22
Grade B
0.1875 – 2.00
34
58 – 75
22
Grade D
0.1875 – 1.38
34
58 – 75
22
Grade E
0.1875 – 2.95
34
58 – 75
22

1) See Lloyd’s Register Rules for elongation requirements for alternative tensile specimens.

Impact Properties

Grade
Thickness
(in)
Test temperature(°F)
Min Longitudinal Average Energy 1)
(ft-lbs)
Min transverse average energy 1)
(ft-lbs)
Grade B
0.1001 – 2.00
32
20
15
Grade D
0.1875 – 1.38
-4
20
15
Grade E
0.1875 – 1.97
-40
20
15
Grade E
1.98 – 2.75
-40
25
18
Grade E
2.76 – 2.95
-40
30
20

1) Tests are to be taken in the longitudinal direction. Normally, transverse test specimens are not required unless otherwise specified in the order. Generally, impact tests are not required when material thickness is less than 0.236 in.

No more than one value below the specified minimum average energy but no less than 70% of the specified minimum average energy value.

Minimum average energy for full-size specimens. Refer to Lloyd’s Register Rules for sub-size specimen energy requirements.

Service Support
LR Grade A B D E Shipbuilding Steel Plate

Technical Requirements & Additional Services for LR 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

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