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 A70 D70 E70 F70 ship plate flaw detection requirements:
first detection, second detection, third detection.
KR A70 D70 E70 F70 shipbuilding steel plate density:
7.85/m3.
KR A70 D70 E70 F70 ship plate weight adjustment formula:
thickness * width * length * density.
KR A70 D70 E70 F70 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 A70 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. % |
| 690 | 770-940 | 14 |
KR Grade D70 Shipbuilding Steel Plate Chemical Composition and Mechanical Property
|
Grade |
Chemical Composition(%) |
||||
|
C |
Mn≥ |
Si |
P |
S |
|
|
KR D70 |
0.21 |
0.55 |
1.70 |
0.035 |
0.035 |
|
Grade |
Mechanical Property |
|
|||
|
Tensile Strength(MPa) |
Yield Strength(MPa) |
% Elongation in 2 in.(50mm) min |
Impacting Test Temperature(°C) |
|
|
|
KR D70 |
690 |
770-940 |
14-16 |
-20 |
|
KR Grade E70 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. % |
| 690 | 770-940 | 14 |
KR Grade F70 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. % |
| 690 | 770-940 | 14 |
GNEE Customer Visit
GNEE TEAM
GNEE Customer Office Visit
GNEE Exhibition
GNEE Sales Team
Hot Tags: kr a70 d70 e70 f70 hull ship plate, China kr a70 d70 e70 f70 hull ship plate manufacturers, suppliers, factory
