Accreditation Administration System:
According to the difference in yield and tensile strength,LR Grade AH32,LR Grade AH36
and LR Grade AH40 steel plates are mainly used in the temperature at zero centidegree water
surroundings.All these shipbuilding plates must be reviewed by LR ship inspector,and Mill
test certificate shall be endorse and stamped by them the same before delivery.Other grades
are LR Grade DH32,DH36,DH40,EH32,EH36,EH40,FH32,FH36,FH40.
Please find the details of property values in the below table:
Property Data:
|
Grade |
|
LR Grade AH32 |
LR Grade AH36 |
LR Grade AH40 |
|
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 |
AB/AH32 |
AB/DH32 |
AB/EH32 | |
For more technical data，please link：
