CCS FH40 steel plate is a structural steel plate for high-strength ships and offshore platforms. The impact temperature of CCS FH40 steel plate is - 60℃, and it has good low-temperature impact performance. Because of the complexity of the navigation environment of large ships, it is necessary to require ship steel to have good toughness. Especially in cold environments, it is necessary to have excellent low-temperature aging impact toughness, which requires a low ductile brittle transition temperature, which is also the technical key of Class F high-strength ship plates.
Chemical Composition( %)
|
Element |
CCS FH40 Max % |
Element |
CCS FH40 Max % |
|
C |
0.16 |
Ni |
0.40 |
|
Mn |
0.90-1.60 |
Mo |
0.08 |
|
Si |
0.50 |
Al |
0.0015 min |
|
S |
0.025 |
Nb |
0.20-0.05 |
|
P |
0.025 |
V |
0.05-0.10 |
|
Cu |
0.35 |
Ti |
0.02 |
|
Cr |
0.20 |
N |
0.009 |
Crack Sensitivity: Pcm = (C+Si/30+Mn/20+Cu/20+Ni/60+Cr/20+Mo/15+V/10+5B)%
Carbon Equivalent: Ceq = 【C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15】%
Mechanical Properties( Mpa)
|
Grade |
Thickness |
Yield Strength |
Tensile Strength |
Elongation |
Impact Energy |
|
(mm) |
MPa (min) |
MPa |
% (min) |
(KV J) (min) |
|
|
|
|
|
|
-60 degree |
|
|
CCS FH40 |
8-220 |
390 |
510-650 |
20 |
41J |
