LR D550 steel,LR grade D550,D550 plate
LR D550 is applied to extra high strength steels, which is defined as steel with specified min yield stress of 420Mpa. The max yield is 690Mpa
BEBON steel can supply LR grade D550 steel specification and price ,we are LR D550 steel suppliers and manufacturer ,if you need LR D550 steel exporter ,please contact us
LR D550 Chemical composition heat analysis
Grade |
The Element Max (%) |
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|
C |
Si |
Mn |
P |
S |
Al |
N |
|
|
LR D550 |
0.21 |
0.10-0.55 |
1.7 |
0.035 |
0.035 |
0.015-0.08 |
0.020 |
|
Nb |
V |
Ti |
Cu |
B |
Ni |
Mo |
|
|
0.02-0.05 |
0.04-0.10 |
0.02 |
0.005 |
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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 D550 |
mm |
Min Mpa |
Mpa |
Min % |
0 |
J |
J |
|
t≤50 |
550 |
670-830 |
16% |
37 |
55 |
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|
50＜t≤70 |
550 |
670-830 |
16% |
37 |
55 |
||
|
70＜t≤150 |
550 |
670-830 |
16% |
37 |
55 |
||
|
Note: Energy 1 is transverse impact test, Energy 2 is longitudinal |
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If you need LR D550 steel,LR grade D550,LR D550 plate, please feel free to contact us soon to get a competitive price.
Just like you, 70% customers choose long-term cooperation with BBN steel not only for our good product and service quality, good reputation in the international market, but also for our experienced one-stop raw material supply and further steel processing!
