KR-A is a ship plate certified by Korea Classification Society.
KR/A ship plate is suitable for manufacturing ship hull structures, docks, oil production platforms, ocean pipelines, coastal power plants, dock facilities and other structural parts in ocean, coastal and inland navigation areas.
KR Marine Steel For Shipbuilding Grade:
General strength ship plating: A, B, D, E.
High-strength ship plates: AH32, AH36, AH40, DH32, DH36, DH40, EH32, EH36, EH40, FH36
KR A B D E Marine Steel For Shipbuilding Size:
Thickness: 3-80mm,
Width 1500-4000mm,
Length 4000-19000mm.
Certified by the world's nine major classification societies (CCS, ABS, VL, LR, BV, NK, KR, RINA, RS).
KR A B D E Ship Steel Plate production process:
Steel making - steel rolling - heat treatment - classification society inspection and certification
KR A B D E ship plate delivery status:
Annealing, hot rolling, normalizing, controlled rolling, TM (different thickness, different delivery status).
KR A B D E ship plate is a high-strength structural steel for ship hulls. Shipbuilding steel generally refers to steel for hull structures, which refers to steel used to manufacture hull structures produced in accordance with the requirements of classification society manufacturing specifications. It is often ordered, scheduled and sold as special steel. One ship contains ship plates, shaped steel, etc.
KR Grade A Shipbuilding Steel Plate Chemical Composition and Mechanical Property
| C max | Si max. | Mn min. | P max | S max | Cu max | Cr max | Ni max |
|
0.21 |
0.50 |
0.50 |
0.035 |
0.035 |
0.35 | 0.30 |
0.30 |
| Yield Strength (MPa) min. | Tensile Strength (MPa) | Elongation min. % |
| 235 | 400-520 | 22 |
KR Grade B Shipbuilding Steel Plate Chemical Composition and Mechanical Property
| C max | Si max. | Mn min. | P max | S max | Cu max | Cr max | Ni max |
|
0.21 |
0.35 |
0.80 |
0.035 |
0.035 |
0.35 | 0.30 |
0.30 |
| Yield Strength (MPa) min. | Tensile Strength (MPa) | Elongation min. % |
| 235 | 400-520 | 22 |
KR Grade D Shipbuilding Steel Plate Chemical Composition and Mechanical Property
| C max | Si max. | Mn min. | P max | S max | Cu max | Cr max | Ni max | Als min |
|
0.21 |
0.35 |
0.60 |
0.030 |
0.030 |
0.35 | 0.30 |
0.30 |
0.015 |
| Yield Strength (MPa) min. | Tensile Strength (MPa) | Elongation min. % |
| 235 | 400-520 | 22 |
KR Grade E Shipbuilding Steel Plate Chemical Composition and Mechanical Property
| C max | Si max. | Mn min. | P max | S max | Cu max | Cr max | Ni max | Als min |
|
0.18 |
0.35 |
0.70 |
0.025 |
0.025 |
0.35 | 0.30 |
0.30 |
0.015 |
| Yield Strength (MPa) min. | Tensile Strength (MPa) | Elongation min. % |
| 235 | 400-520 | 22 |
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