Accreditation Administration System:
Under Lloyd¡¯s Register of shipping,the common strength ship plates LR Grade A,LR Grade B,LR Grade D
and LR Grade E are mainly used to constructe ship bodies.Grade A with the low temperature impacting
test at room centidegree,Grade B is at 0¡æ,Grade D is at minus 20¡æ,and Grade E is at minus 40¡æ. Other
relative LR grades are LR Grade AH32,LR Grade AH36,LR Grade AH40,LR Grade DH36,LR Grade DH40,
LR Grade EH36,LR Grade eh40. Please find the comparasion table of these grades as bellows:
Property Data:
|
LR | |||||
|
Grade |
|
LR Grade A |
LR Grade B |
LR Grade D |
LR Grade E |
|
Chemical Composition % ¡Ü |
C |
0.21 |
0.21 |
0.21 |
0.18 |
|
Mn(¡Ý) |
2.5*C |
0.80 |
0.60 |
0.70 | |
|
P |
0.035 |
0.035 |
0.035 |
0.035 | |
|
S |
0.035 |
0.035 |
0.035 |
0.035 | |
|
Si |
0.50 |
0.35 |
0.10- 0.35 |
0.10- 0.35 | |
|
Al (acid) |
0.035 |
0.035 |
0.035 |
0.035 | |
|
Yield Strength (Mpa) |
235 |
235 |
235 |
235 | |
|
Tensile Strength (Mpa) |
400-520 |
400-520 |
400-520 |
400-520 | |
|
Impacting Test temperature (¡æ) |
20 |
0 |
-20 |
-40 | |
|
Mark |
LR/A |
LR/B |
LR/D |
LR/E | |
H:Heat Analysis. P:Product Analysis
For more technical data£¬please link£º
