Accreditation Administration System:
Application in the deep ocean surrondings, LR Grade DH36 and LR Grade DH40 plates mainly
be the main body structural parts of vessels,ships and break bulkers building. Under the
various requirements of pressure strength,DH Class has DH32,DH36 and DH40. LR DH40 owned
the highest yield strength at 390Mpa.
For our customers’ easily and clearly understanding,now we draft the below table for your
check their difference.
Property Data:
|
Grade |
|
LR Grade DH32 |
LR Grade DH36 |
LR Grade DH40 |
|
Chemical Composition % ≤ |
C |
0.18 |
0.18 |
0.18 |
|
Mn |
0.90-1.60 |
0.90-1.60 |
0.90-1.60 | |
|
Si |
0.10-0.50 |
0.10-0.50 |
0.10-0.50 | |
|
P |
0.035 |
0.035 |
0.035 | |
|
S |
0.035 |
0.035 |
0.035 | |
|
Al (acid)≥ |
0.015 |
0.015 |
0.015 | |
|
Nb |
0.02-0.05 |
0.02-0.05 |
0.02-0.05 | |
|
V |
0.05-0.10 |
0.05-0.10 |
0.05-0.10 | |
|
Ti |
0.02 |
0.02 |
0.02 | |
|
Cu |
0.35 |
0.35 |
0.35 | |
|
Cr |
0.20 |
0.20 |
0.20 | |
|
Ni |
0.40 |
0.40 |
0.40 | |
|
Mo |
0.08 |
0.08 |
0.08 | |
|
Tensile Strength (Mpa) ≥ |
440-590 |
490-620 |
510-650 | |
|
Yield Strength (Mpa) ≥ |
315 |
355 |
390 | |
|
Mark on steel plate |
LR/DH32 |
LR/DH36 |
LR/DH40 | |
For more technical data，please link：
