DNV A550,NV A550,A550 steel grade, DNV Grade A550,A550 steel plate
2011年3月28日 by admin
DNV A550,NV A550,A550 steel grade, DNV Grade A550,A550 steel plate
Adopt standard: DNV Extra high strength steel plate
DNV Extra High Grade:
| NV A420 | NV D420 | NV E420 | NV F420 |
| NV A460 | NV A500 | NV A550 | NV E420 |
| NV F420 | NV D460 | NV E460 | NV F460 |
| NV D500 | NV E500 | NV F500 | NV D550 |
| NV E550 | NV F550 | NV D620 | NV D690 |
| NV E690 | NV F690 | NV A620 | NV A690 |
NV A550 steel grade.
NV A550 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 A550 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.
For more information in NV A550 steel grade, please refer to the following:
NV A550 Chemical composition heat analysis
| Element | NV A550 Max % | Element | NV A550 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 A550 Mechanical properties, longitudinal min impact energy
| Grade | Thickness | Yield Strength | Tensile Strength | Elongation | Impact Energy |
| (mm) | MPa (min) | MPa | % (min) | (KV J) (min) | |
| | | | | 0 degree | |
| NV A550 | 8-260 | 550 | 670-830 | 16 | 37J |
Note: the impact energy under less 150mm thickness
If you have any need in NV A550 steel plate, please feel free to contact us soon to get a competitive price.
DNV A550,NV A550,A550 steel grade, DNV Grade A550, A550 steel plate
Tags: NV A550 A550 steel grade DNV Grade A550
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