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LR Gr A, LR GRADE A STEEL PLATE
Gangsteel is specialized in supplying LR general strength steel plate in LR Grade A. For more information of Grade A steel plate, please check them in following:
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LR/A general Strength Chemical Composition |
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|
Grade |
The Element Max (%) |
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|
C |
Si |
Mn |
P |
S |
Al |
N |
|
|
LR/A |
0.21 |
0.50 |
2.5×C% |
0.035 |
0.035 |
|
|
|
Nb |
V |
Ti |
Cu |
Cr |
Ni |
Mo |
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|
|
|
|
|
|
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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/A general 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/A |
mm |
Min Mpa |
Mpa |
Min % |
20 |
J |
J |
|
t≤50 |
235 |
400-520 |
22% |
20 |
27 |
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|
50＜t≤70 |
235 |
400-520 |
22% |
24 |
34 |
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|
70＜t≤100 |
235 |
400-520 |
22% |
27 |
41 |
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|
Note: Energy 1 is transverse impact test, Energy 2 is longitudinal |
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Boiler steel plates | Alloy steel plates | High strength plate| Carbon steel plate | Stainless steel plate
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Equivalent steel grade of LR/A |
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|
BV |
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|
NV A |
GL-A |
AB/A |
BV/A |
CCS/A |
K A |
R A |
RI/A |
If you need more stock steel plates in shipbuilding steel plate, please click warehouse sizes.
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