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Ship Hull Structural Steel

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Ship Hull Structural Steel Price, please free to contact us.

Ship Hull Structural Steel

Delivery Standard of Ship Hull Structural Steel

Classification Society Certificate Grade Specification Thickness*width*length (mm)
China Classification society
A 、B 、D、AH32 、DH32、AH36 、DH36
3~25*900~2130*2000~ 16000
American  Bureau  of  Shipping
AB/A 、AB/B 、AB/D 、AB/E
≤25*900~2130*2000~ 16000
LR British Corporation
LR-A 、LR-B 、LR-D 、LR-E
≤25*900~2130*2000~ 16000
Bureau Veritas
BV-A、BV-B
≤12*900~2130*2000~ 16000

Length: in accordance with the length of the sheet,0-10mm

Profile: sheet flatness ≤6mm within 1000mm. The stress shall be released through high straightening force and high deformation force.

Width: 0-6mm for the sheet with side trimmed, the width shall be controlled by the mill for the sheet without side trimmed.

Mechanical Property of Ship Hull Structural Steel

Mechanical Property
Steel Grade
Thickness (mm)
Y.S., σs MPa
T.S., σb MPa
Elongation, δ %
Impact Temperature (C)
Impact energy, Akv J
Longitudinal
Transverse
A
2-22
235
400-520
≥22
20
-
-
B
0
27
20
D
2-22
≥235
400-520
≥22
-20
≥27
≥20
DH32
2-22
≥315
440-570
≥22
-20
≥31
≥22
DH36
2-22
≥355
490-630
≥21
-20
≥34
≥24

Product Precision

Thickness: the thickness deviation of the sheet shall conform to the higher precision requirement in table 5 of GB/T 709.

Product Precision
Nominal thickness
Higher precision PT.B
Nominal width
600 -1200
>1200 -1500
>1500 -1800
>1800
0.8 -1.5
± 0.10
± 0.12
-
-
>1.5 - 2.0
± 0.13
± 0.14
± 0.14
-
>2.0 - 2.5
± 0.14
± 0.15
± 0.17
± 0.20
>2.5 - 3.0
± 0.15
± 0.17
± 0.19
± 0.21
>3.0 - 4.0
± 0.17
± 0.18
± 0.21
± 0.22
>4.0 - 5.0
± 0.19
± 0.21
± 0.22
± 0.23
>5.0 - 6.0
± 0.21
± 0.22
± 0.23
± 0.25
>6.0 - 8.0
± 0.23
± 0.24
± 0.25
± 0.28
>8.0 - 10.0
± 0.26
± 0.26
± 0.27
± 0.32
>10.0 - 12.5
± 0.28
± 0.29
± 0.30
± 0.36
>12.5 - 15.0
± 0.30
± 0.31
± 0.33
± 0.39
>15.0 - 25.4
± 0.32
± 0.34
± 0.37
± 0.42

For the strip(continuous rolled) with minimum yield strength Re≥345MPa, the thickness deviation shall be increased by 10%.

Length: in accordance with the length of the sheet,0- 10mm.

Width: 0-6mm for the sheet with side trimming, the width shall be controlled by the mill for the sheet without side trimming.

Profile: sheet unflatness, ≤6mm within 1000mm.

The stress shall be released through high straightening force and high deformation force.

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