Grade A Shipbuilding steel plate
Grade A marine steel sheet is used for hull structures and sills in shipbuilding.Grade A marine grade steel plate is a commonly used tensile strength steel with good toughness and high strength, strong corrosion resistance, machinability and weldability.
ASTM A131 Grade A steel plate can be used to fabricate hull structures weighing less than 10,000 tonnes, usually in coastal and inland waterway areas.
Grade A ship steel Specifications:
Thickness: 4mm to 260mm;
Width: 1200 mm to 4000 mm;
Length: 3000 mm to 18000 mm.
ship building steel plate Chemical Composition
| Grade |
C max |
Si max |
Mn |
P max |
S max |
|
Grade A |
0.21 |
0.50 |
≥ 2.5C |
0.035 |
0.035 |
steel used in shipbuilding mechanical property
| Grade |
Rm |
Re(MPa) min |
A% min |
Akv/J min |
||||||
|
Grade A |
400-520 |
235 |
22 |
E.T °C |
Thickness (mm) |
|||||
|
20 |
≤50 |
>50-70 |
>70-100 |
|||||||
|
L |
C |
L |
C |
L |
C |
|||||
|
- |
- |
34 |
24 |
41 |
27 |
|||||
shipbuilding plate Condition Of Delivery
Grade |
category |
The thickness of steel |
||||
|
≤12 |
>12.5-25 |
>25-35 |
>35-50 |
>50-100 |
||
|
Grade A |
Plate/sheet |
A(-) |
N(-),TM(-) |
|||
|
Profile steel |
- |
|||||
ship steel plate Comparison of grade
| ASTM A131M |
TOCT 5521 |
JIS G3106 |
BS LR |
GB712 |
|
Grade A |
A |
SM400A |
A |
A |
shipbuilding plate Products image
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