What is LR EH46 steel plate?

Dec 26, 2025 Pustite sporočilo

LR EH46 steel plate is a high-strength, low-temperature grade shipbuilding steel certified by Lloyd's Register (LR), known for excellent toughness, strength (Yield ~420 MPa, Tensile ~530-680 MPa), and good weldability, primarily used for hulls, offshore structures, and large vessels operating in harsh, cold marine environments. The 'E' signifies its suitability for low temperatures, 'H' denotes high strength, and '46' indicates its minimum yield strength in kg/mm², making it ideal for critical structural components needing impact resistance.

LR EH46 extra high Strength Chemical Composition

	C			P	S		N
LR EH46	0.20	0.55	1.70	0.030	0.030	0.015	0.020
		V
	0.02-0.05	0.03-0.10	0.02

LR EH46 extra high strength property

						Energy 1	Energy 2
LR EH46					-40	J	J
	t<=50	460	570-720	19%		31	46
	50＜t<=70	460	570-720	19%		31	46
	70＜t<=100	460	570-720	19%		31	46
Note: Energy 1 is transverse impact test, Energy 2 is longitudinal

Equivalent steel grade of LR/EH46

NV E460	GL-E460	AB/EQ47	BV/E460	CCS/E460	K E47	R E47	RI/E460

Standard: LR (Lloyd's Register) Shipbuilding Steel Standard.

Strength: Higher strength grade, offering superior performance over basic grades like LR Grade A or D.

Toughness: Excellent impact toughness, even at low temperatures (e.g., -40℃), crucial for marine safety.

Applications: Ship hulls, offshore platforms, drilling rigs, pipe joints, and other demanding marine engineering projects.

Composition & Properties: Carefully controlled chemistry (e.g., low Carbon, specific Silicon/Manganese) and heat treatment ensure its mechanical properties, with minimum elongation often around 18%.