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Marine Sheet Product Description
RINA steel is a hot rolled normal tensile strength steel. RINA shipbuilding steel of general strength is divided into three strengths and four quality grades A, B, D and E. Class A is one of them. Grade A steel plates have a yield strength of 235 MPa and an ultimate tensile strength of 400-520 MPa.
RINA grade A steel refers to the impact force at 20 ° C; RINA grade B steel refers to the impact force at 0 ° C; RINA grade D steel refers to the impact force at -20 ° C; RINA grade E steel Refers to impact force at -40°C.
ship steel plate
RINA Steel Plate Grade Product Details
Chemical Composition:
| Steel grade | C | Si | Mn | P | S | Als |
| Grade A | ≤0.21 | ≤0.50 | ≥2.5C | ≤0.035 | ≤0.035 | - |
| Grade B | ≤0.21 | ≤0.35 | 0.8-1.2 | ≤0.035 | ≤0.035 | - |
| Grade D | ≤0.21 | ≤0.35 | 0.6-1.2 | ≤0.035 | ≤0.035 | ≥0.015 |
| Grade E | ≤0.18 | ≤0.35 | 0.7-1.2 | ≤0.035 | ≤0.035 | ≥0.015 |
Mechanical Properties:
| Steel grade | Yield point/MPa | Tensile point /MPa | Elongation/% | Temperature/° C | V-type impact test | ||
| Akv/J | |||||||
| ≤50MM | 50-70MM | 70-100MM | |||||
| Grade A | 235 | 400-520 | ≥22 | 20 | - | 34/24 | 41/27 |
| Grade B | 235 | 400-520 | ≥22 | 0 | 27/20 | 34/24 | 41/27 |
| Grade D | 235 | 400-520 | ≥22 | -20 | 27/20 | 34/24 | 41/27 |
| Grade E | 235 | 400-520 | ≥22 | -40 | 27/20 | 34/24 | 41/27 |
marine sheet
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