Accreditation Administration System:
LR FH40 would be mainly used for building crane project in many shipyards,also would be
used in building ice breaker owning to its minus 60 centidegreeimpacting test when rolling.
Relative Grades:LR A|LR B|LR D|LR E|LR AH32|LR AH36|LR AH40|LR DH32|LR DH36|LR DH40
|LR EH32|LR EH36|LR EH40|LR FH32|LR FH36|LR FH40
Property Data:
LR Grade T: 8-300MM LR AH40 LR DH40 LR EH40 LR FH40 Chemical Composition % ≤ C 0.18 0.16 Mn 0.9-1.60 P 0.035 0.025 S 0.035 0.025 Si 0.50 Al (acid) ≥ 0.015 Nb 0.02-0.05 V 0.03-0.10 Ti 0.02 Ni 0.40 0.80 Cu 0.35 Cr 0.20 Mo 0.08 N 0.009 Mechanical Property ≥ Yield Strength (Mpa) 390 390 390 390 Tensile Strength (Mpa) 510-650 510-650 510-650 510-650 Impacting Test temperature (℃) 0 -20 -40 -60 Mark LR/A40 LR/D40 LR/E40 LR/F40
H:Heat Analysis. P:Product Analysis
NOTE:For Grade FH40 plates, there is not just limited in impacting test but have more
striction in some elements in chemical composition.Else,for the marking on the steel
plates, LR/F40 is stand for LR FH40.
For more technical data，please link:
