KR high-strength hull structure steel is divided into strength grades according to its minimum yield strength, and each strength grade is divided into A, D, E, and F 4 grades according to its impact toughness.
A, D, E, and F respectively represent the impact toughness that they can achieve at 0°, -20°, -40°, and -60° respectively.
KR A63 D63 E63 F63 ship plate flaw detection requirements:
first detection, second detection, third detection.
KR A63 D63 E63 F63 shipbuilding steel plate density:
7.85/m3.
KR A63 D63 E63 F63 ship plate weight adjustment formula:
thickness * width * length * density.
KR A63 D63 E63 F63 marine grade steel plate regular size:
8-80mm*2000-2500mm*8000-10000mm
GNEE STEEL has the ability to take orders for whole ships of all strengths, all specifications, and all civilian ship types. It can supply steel plates for up to 400,000-ton oil tankers and 24,000 TEU container ships, achieving a 'one-stop solution' to customer needs.
KR Grade A63 Shipbuilding Steel Plate Chemical Composition and Mechanical Property
| C max | Si max | Mn | P max | S max | N max. |
|
0.21 |
0.55 | 1.70 |
0.030 |
0.030 |
0.020 |
| Yield Strength (MPa) min. | Tensile Strength (MPa) | Elongation min. % |
| 620 | 720-890 | 15 |
KR Grade D63 Shipbuilding Steel Plate Chemical Composition and Mechanical Property
| C max | Si max | Mn | P max | S max | N max. |
|
0.20 |
0.55 | 1.70 |
0.025 |
0.025 |
0.020 |
| Yield Strength (MPa) min. | Tensile Strength (MPa) | Elongation min. % |
| 620 | 720-890 | 15 |
KR Grade E63 Shipbuilding Steel Plate Chemical Composition and Mechanical Property
| C max | Si max | Mn | P max | S max | N max. |
|
0.20 |
0.55 | 1.70 |
0.025 |
0.025 |
0.020 |
| Yield Strength (MPa) min. | Tensile Strength (MPa) | Elongation min. % |
| 620 | 720-890 | 15 |
KR Grade F63 Shipbuilding Steel Plate Chemical Composition and Mechanical Property
| C max | Si max | Mn | P max | S max | N max. |
|
0.18 |
0.55 | 1.60 |
0.020 |
0.020 |
0.020 |
| Yield Strength (MPa) min. | Tensile Strength (MPa) | Elongation min. % |
| 620 | 720-890 | 15 |
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