DNV E550 NV E550 E550 steel grade
2011年3月28日 by admin
DNV E550,NV E550,E550 steel grade, DNV Grade E550,E550 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 E550 steel grade.
NV E550 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 E550 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 E550 steel grade, please refer to the following:
NV E550 Chemical composition heat analysis
| Element | NV E550 Max % | Element | NV E550 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 | |
NV E550 Mechanical properties, longitudinal min impact energy
| Grade | Thickness | Yield Strength | Tensile Strength | Elongation | Impact Energy |
| (mm) | MPa (min) | MPa | % (min) | (KV J) (min) | |
| | | | | -40 degree | |
| NV E550 | 8-260 | 550 | 670-830 | 16 | 37J |
Note: the impact energy under less 150mm thickness
If you have any need in NV E550 steel plate, please feel free to contact us soon to get a competitive price.
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Tags: NV E550 DNV E550 DNV Grade E550
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