NV F690 and DNV Grade F690 steel plate Supplier
Gangsteel supply NV F690 and DNV Grade F690 steel plate. We are NV F690 Extra high strength steel plates and DNV Grade F690 certification supplier.
Related Words: NV F690, DNV Grade F690
Adopt standard: DNV Extra high strength
steel plate
DNV Extra High Grade:
NV F690 steel grade.
NV F690 is applied to extra high strength steels, which is defined as steel with specified min yield stress of 420Mpa. The max yield is 690Mpa in NV A690.
NV F690 steel grade shall be killed and find grain treated. Steel grade of strength levels up to and including 500Mpa should be supplied in Normalized, TM or QT condition. Steel grade of strength levels above 500Mpa shall be 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 F690 and DNV Grade F690 steel plate Chemical composition heat analysis
| Element | NV F690 Max % | Element | NV F690 max % |
| C | 0.18 | Ni | 0.80 |
| Mn | 1.60 | Mo | 0.08 |
| Si | 0.10-0.55 | Al | 0.020 min |
| S | 0.025 | Nb | 0.20-0.05 |
| P | 0.025 | V | 0.05-0.10 |
| Cu | 0.35 | Ti | 0.0007-0.05 |
| Cr | 0.20 | N | 0.009 |
NV F690 and DNV Grade F690 steel plate Mechanical properties,
| Grade | Thickness | Yield Strength | Tensile Strength | Elongation | Impact Energy |
| (mm) | MPa (min) | MPa | % (min) | (KV J) (min) | |
| -60 degree | |||||
| NV F690 | 8-260 | 690 | 770-940 | 14 | 46J |
Note: the impact energy under less 150mm thickness
If you have any need in NV F690 and DNV Grade F690 steel plate, please feel free to contact us soon to get a competitive price. > <>$�w�