LR Grade EH50 is a premium, high-strength, thermo-mechanically controlled processed (TMCP) or normalized steel plate, certified by the leading classification society Lloyd's Register (LR). The "EH" designation stands for "Exceptional High-Strength," and the "50" indicates a minimum yield strength of 500 MPa. This advanced steel is engineered for the most critical and demanding marine applications, offering an superior strength-to-weight ratio, exceptional toughness in harsh environments, and excellent weldability. It enables the construction of lighter, more fuel-efficient, and highly durable vessel hulls and offshore structures.
Chemical Composition
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LR EH50 extra high Strength Chemical Composition |
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Grade |
The Element Max (%) |
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|
C |
Si |
Mn |
P |
S |
Al |
N |
|
|
LR EH50 |
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 |
|
|
|
|
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Mechanical Property
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LR EH50 extra high strength property |
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Grade |
|
Mechanical Property |
Charpy V Impact Test |
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Thickness |
Yield |
Tensile |
Elongation |
Degree |
Energy 1 |
Energy 2 |
|
|
LR EH50 |
mm |
Min Mpa |
Mpa |
Min % |
-40 |
J |
J |
|
t≤50 |
500 |
610-770 |
18% |
33 |
50 |
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50＜t≤70 |
500 |
610-770 |
18% |
33 |
50 |
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70＜t≤100 |
500 |
610-770 |
18% |
33 |
50 |
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Note: Energy 1 is transverse impact test, Energy 2 is longitudinal |
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Other Name
LR Grade EH50 Shipbuilding steel plate,
LR Grade EH50 Ship steel plate,
LR Grade EH50 Marine steel plate,
LR Grade EH50 steel plate .
Additional Condition
UT(Ultrasonic examination), AR(As Hot Rolled only), TMCP(Thermal Mechanical Control Processing), N(Normalized), Q+T(Quenched and Tempered),Z Direction Test(Z15,Z25,Z35), Charpy V-Notch Impact Test, The Third Party Test (such as SGS Test), Coated or Shot Blasting and Painting.
