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Gangsteel is specialized in supplying RINA extra high strength steel plate in RINA Grade D420. For more information of Grade D420 steel plate, please check them in following:
RI/D420 extra high Strength Chemical Composition in Tempering and Quenching
|
Element |
RINA D420 Max % |
Element |
RINA D420 Max % |
|
C |
0.20 |
Ni |
0.40 |
|
Mn |
1.70 |
Mo |
0.08 |
|
Si |
0.10-0.55 |
Al |
0.020 min |
|
S |
0.030 |
Nb |
0.20-0.05 |
|
P |
0.030 |
V |
0.05-0.10 |
|
Cu |
0.35 |
Ti |
0.0007-0.05 |
|
Cr |
0.20 |
N |
|
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】%
RI/D420 extra high strength property in Tempering and Quenching
|
Grade |
Thickness |
Yield Strength |
Tensile Strength |
Elongation |
Impact Energy |
|
(mm) |
MPa (min) |
MPa |
% (min) |
(KV J) (min) |
|
|
|
|
|
|
-20 degree |
|
|
8-260 |
420 |
530-680 |
18 |
28J |
Note: the impact energy under less 150mm thickness; longitudinal min impact energy
Boiler steel plates| Alloy steel plates| High strength plate| Carbon steel plate| Stainless steel plate
|
Equivalent steel grade of RI/D420 |
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If you need more stock steel plates in shipbuilding steel plate, please click warehouse sizes.
The related steel grade: RI/A420, RI/E420, RI/F420
Gangsteel is specialized in supplying RINA normal strength steel plate in RINA Grade A.RI/A,RINA GRADE A,RI-A
Gangsteel is specialized in supplying RINA high strength steel plate in RINA Grade DH36.RI/DH36,RINA GRADE DH36
Gangsteel is specialized in supplying RINA high strength steel plate in RINA Grade AH36.RI/AH36,RINA GRADE AH36
Gangsteel is specialized in supplying RINA high strength steel plate in RINA Grade FH32.
