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Home > products> LR AH42, DH42, EH42 Marine Steel Plate

LR AH42, DH42, EH42 Marine Steel Plate

Steel Standard:LR AH42/DH42/EH42

Rolling Type:Shipbuilding steel plate,High tension ship plate

Thickness:3mm-250mm

Width:1200mm-4200mm

Length:3000mm-18000mm

Heat Treatment:TMCP/Normalised

LR Grade EH42 Shipbuilding Steel Plate LR Ship Steel Plate Suppliers and Manufacturers Marine steel plate from China Manufacturers LR Grade AH42,LR AH42 STEEL PLATE LR Grade EH42 Shipbuilding Steel Plate

Introduction
Parameters
Service

LR AH42, DH42, EH42 Marine Steel Plate Supplier and Manufacturer

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, AH42, DH42, EH42, AH32, DH32, AH36, and so on.

Specification Parameters

Basic Information

LR Grade AH42 Shipbuilding Steel Plate Chemical Composition

LR/AH42 extra high Strength Chemical Composition
Grade	The Element Max (%)
Grade	C	Si	Mn	P	S	Al	N
LR/AH42	0.21	0.55	1.70	0.035	0.035	0.015	0.020
	Nb	V	Ti	Cu	Cr	Ni	Mo
	0.02-0.05	0.03-0.10	0.02

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 AH42 Shipbuilding Steel Property

LR/AH42 extra high strength property
Grade		Mechanical Property			Charpy V Impact Test
Grade	Thickness	Yield	Tensile	Elongation	Degree	Energy 1	Energy 2
LR/AH42	mm	Min Mpa	Mpa	Min %	0	J	J
	t≤50	420	530-680	20%		28	42
	50＜t≤70	420	530-680	20%		28	42
	70＜t≤100	420	530-680	20%		28	42
Note: Energy 1 is transverse impact test, Energy 2 is longitudinal

LR DH42, LR/DH42 LR DH42 Z15, LR DH42 Z25,LR DH42 Z35 chemical composition in shipbuilding steel plate

Grade

C max

max

P max

S max

Als

N max

Nb max

max

DH42

0.21

0.10-0.55

1.7

0.035

0.015-0.08

0.20

0.02-0.05

0.04-0.10

0.02

0.005

LR DH42, LR/DH42, LR DH42 Z15, LR DH42 Z25, LR DH42 Z35 Mechanical Property

Grade

Mechanical Property

Charpy V Impact Test

Yield Min Mpa

Tensile

Mpa

Elongation

Min %

Degree

Energy 1 (J)

Energy 2(J)

DH42

420

530-680

18%

-20

LR EH42 extra high Strength Chemical Composition

LR EH42 extra high Strength Chemical Composition
Grade	The Element Max (%)
Grade	C	Si	Mn	P	S	Al	N
LR EH42	0.20	0.55	1.70	0.030	0.030	0.015	0.020
	Nb	V	Ti	Cu	Cr	Ni	Mo
	0.02-0.05	0.03-0.10	0.02

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 EH42 Mechanical Property

LR EH42 extra high-strength property
Grade		Mechanical Property			Charpy V Impact Test
Grade	Thickness	Yield	Tensile	Elongation	Degree	Energy 1	Energy 2
LR EH42	mm	Min Mpa	Mpa	Min %	-40	J	J
	t≤50	420	530-680	20%		28	42
	50＜t≤70	420	530-680	20%		28	42
	70＜t≤100	420	530-680	20%		28	42
Note: Energy 1 is transverse impact test, Energy 2 is longitudinal

Service Support

LR AH42, DH42, EH42 Marine Steel Plate

We also supply other LR shipbuilding steel materials:

LR grade A	LR grade B	LR grade D	LR grade E
LR AH32	LR DH32	LR EH32	LR FH32
LR AH36	LR DH36	LR EH36	LR FH36
LR AH40	LR DH40	LR EH40	LR FH40

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LR AH42, DH42, EH42 Marine Steel Plate

LR AH42, DH42, EH42 Marine Steel Plate Supplier and Manufacturer

LR Grade AH42 Shipbuilding Steel Plate Chemical Composition

LR Grade AH42 Shipbuilding Steel Property

LR DH42, LR/DH42 LR DH42 Z15, LR DH42 Z25,LR DH42 Z35 chemical composition in shipbuilding steel plate

LR DH42, LR/DH42, LR DH42 Z15, LR DH42 Z25, LR DH42 Z35 Mechanical Property

LR EH42 extra high Strength Chemical Composition

LR EH42 Mechanical Property