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Gangsteel is specialized in supplying LR extra strength steel plate in LR Grade AH69. For more information of Grade AH69 steel plate, please check them in following:
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LR/AH69 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/AH69 |
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】%
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LR/AH69 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/AH69 |
mm |
Min Mpa |
Mpa |
Min % |
0 |
J |
J |
|
t≤50 |
690 |
770-940 |
16% |
46 |
69 |
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|
50＜t≤70 |
690 |
770-940 |
16% |
46 |
69 |
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|
70＜t≤100 |
690 |
770-940 |
16% |
46 |
69 |
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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/AH69 |
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|
NV A690 |
GL-A690 |
AB/AQ70 |
BV/A690 |
CCS/A690 |
K A70 |
R A70 |
RI/A690 |
If you need more stock steel plates in shipbuilding steel plate, please click warehouse sizes.
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General Strength |
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High Strength |
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Extra Strength |
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