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LR DH55 STEEL PLATE
Gangsteel is specialized in supplying LRextra strength steel plate in LR Grade DH55. For more information of Grade DH55 steel plate, please check them in following:
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LR DH55 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 DH55 |
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 |
|
|
|
|
|
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 DH55 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 DH55 |
mm |
Min Mpa |
Mpa |
Min % |
-20 |
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 |
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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 DH55 |
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|
NV D550 |
GL-D550 |
AB/DQ56 |
BV/D550 |
CCS/D550 |
K D56 |
R D56 |
RI/D550 |
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