NV A620 Ultra-High Strength Ship Steel Plate
1. NV A620 ultra-high strength ship steel plate used for fixed offshore structure from
HZZ Iron & Steel Co.,Ltd.
2. Application Standard:
NV A620 ship steel plate is accordance with DNV specification.
This standard specifies requirements for weldable structural steels to be used in
fabrication of fixed offshore structures.
3. Dimension specification:
Thickness: 8-300mm, the width: 1500-4000mm, length: 6000-18000
4. Chemical Composition
|
Steel Grade
|
Chemical Composition(%)(max)
|
|
C
|
Si
|
Mn
|
P
|
S
|
N
|
Al
|
|
NV A620
|
0.21
|
0.10-0.55
|
1.70
|
0.035
|
0.035
|
0.020
|
0.020-0.085
|
5. Mechanical Property
|
Steel Grade
|
Tensile Property(N/mm2)
|
Average Impact Value(min J)
|
Impact Temperature(°C)
|
|
Tensile Strength
|
Yield Point
|
T≤150
|
|
Longitudinal
|
Transverse
|
|
NV A620
|
720-890
|
620
|
62
|
41
|
0
|
6. Delivery Condition:
The delivery condition of NV A620 ultra-high strength ship steel plate is
Q+T(quenched and tempered)
7. Technical Requirement:
The technical condition of NV A620 ultra-high strength ship steel plate contains impact rest and tensile test, other
test should be accordance with the clients'requirements, including UT(ultrasonic test), Z test, bend test, hardness
test and so on.
8. If you need any further informations about NV A620 ultra-high strength steel plate, please feel free to contact us.
