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LR GRADE AH55, LR AH55 STEEL PLATE
Gangsteel is specialized in supplying LR extra strength steel plate in LR Grade AH55. For more information of Grade AH55 steel plate, please check them in following:
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LR/AH55 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/AH55 |
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/AH55 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/AH55 |
mm |
Min Mpa |
Mpa |
Min % |
0 |
J |
J |
|
t≤50 |
550 |
670-830 |
18% |
37 |
55 |
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|
50＜t≤70 |
550 |
670-830 |
18% |
37 |
55 |
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|
70＜t≤100 |
550 |
670-830 |
18% |
37 |
55 |
||
|
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/AH55 |
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|
BV |
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|
NV A550 |
GL-A550 |
AB/AQ56 |
BV/A550 |
CCS/A550 |
K A56 |
R A56 |
RI/A550 |
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