NV A420 and DNV Grade A420 steel plate Supplier
Gangsteel supply NV A420 and DNV Grade A420 steel plate. We are NV A420 Extra high strength steel plates and DNV Grade A420 certification supplier.
Related Words: NV A420, DNV Grade A420
Adopt standard: DNV Extra high strength steel plate
DNV Extra High Grade:
NV A420 steel grade.
NV A420 is applied to extra high strength steels which are defined as steel with specified min yield stress of 420Mpa. The max yield is 690Mpa in NV A690.
NV A420 steel grade killed and find grain treated. Steel grade of strength levels up to and including 500Mpa supplied in Normalized, TM or QT condition. Steel grade of strength levels above 500Mpa supplied in TM or QT delivery condition.
Gangsteel is specialized in Super thickness steel grade. We have much experience in manufacture and exporting extra high strength steel grade.
NV A420 and DNV Grade A420 steel plate Chemical composition heat analysis
| Element | NV A420 Max % | Element | NV A420 max % |
| C | 0.21 | Ni | 0.40 |
| Mn | 1.70 | Mo | 0.08 |
| Si | 0.10-0.55 | Al | 0.020 min |
| S | 0.035 | Nb | 0.20-0.05 |
| P | 0.035 | V | 0.05-0.10 |
| Cu | 0.35 | Ti | 0.0007-0.05 |
| Cr | 0.20 | N |
NV A420 and DNV Grade A420 steel plate Mechanical properties,
| Grade | Thickness | Yield Strength | Tensile Strength | Elongation | Impact Energy |
| (mm) | MPa (min) | MPa | % (min) | (KV J) (min) | |
| 0 degree | |||||
| NV A420 | 8-260 | 420 | 530-680 | 18 | 28J |
Note: the impact energy under less 150mm thickness
If you have any need in NV A420 and DNV Grade A420 steel plate, please feel free to contact us soon to get a competitive price.