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RINA (Registro Italiano Navale) steel plates are categorized into various grades based on their strength and application, ensuring they meet the rigorous demands of marine and structural engineering. Under General Strength, grades such as RI/A, RI/B, RI/D, and RI/E are commonly utilized, providing adequate toughness and weldability for standard shipbuilding applications. These grades are suitable for hull structures, decks, and bulkheads, making them essential for various marine constructions.
In the High Strength category, grades like RI/A32, RI/D32, RI/E32, and RI/F32 offer enhanced strength and toughness for more demanding applications. This includes critical ship components and structural elements that require additional durability. Higher grades, such as RI/A36, RI/D36, RI/E36, and RI/F36, continue this trend, providing increased strength for harsher marine environments. The Extra Strength category features robust grades like RI/A500, RI/D500, RI/E500, and RI/F500, which are designed for extreme conditions and heavy-duty applications. These grades are essential in offshore structures and vessels where reliability and performance are paramount.
Further extending this range are the RI/A550, RI/D550, RI/E550, and RI/F550 grades, providing superior strength and performance for the most challenging environments. The lineup continues with the RI/A620, RI/D620, RI/E620, and RI/F620 grades, which offer ultra-high strength suitable for critical marine applications and large-scale structures. Lastly, RI/A690, RI/D690, RI/E690, and RI/F690 are among the strongest, ensuring safety and durability in the most demanding conditions. Overall, RINA steel plates are crucial in enhancing the structural integrity and longevity of marine constructions.
Grade | Category | Description |
---|---|---|
RI/A | General Strength | Standard structural grade for shipbuilding |
RI/B | General Strength | Improved strength over RI/A |
RI/D | General Strength | Increased toughness for colder environments |
RI/E | General Strength | Higher toughness for extreme conditions |
RI/A32 | High Strength | High-strength steel for marine applications |
RI/D32 | High Strength | High strength with additional toughness |
RI/E32 | High Strength | Enhanced toughness for severe conditions |
RI/F32 | High Strength | Strengthened grade for critical components |
RI/A36 | High Strength | Suitable for more demanding structural components |
RI/D36 | High Strength | Commonly used in shipbuilding |
RI/E36 | High Strength | Combines strength and toughness for harsh conditions |
RI/F36 | High Strength | High durability in high-stress areas |
RI/A40 | High Strength | The strongest in the A series |
RI/D40 | High Strength | Offers maximum strength for demanding applications |
RI/E40 | High Strength | Designed for extreme environments |
RI/F40 | High Strength | Highest strength in the F series |
RI/A420 | High Strength | Ultra-high strength for demanding applications |
RI/D420 | High Strength | Equivalent to A420 with enhanced toughness |
RI/E420 | High Strength | Suitable for critical marine components |
RI/F420 | High Strength | Combines high strength and excellent toughness |
RI/A460 | High Strength | Very high strength for severe service conditions |
RI/D460 | High Strength | Strength and toughness for critical components |
RI/E460 | High Strength | Suitable for extreme conditions |
RI/F460 | High Strength | High durability in harsh environments |
RI/A500 | Extra Strength | High-strength for heavy-duty applications |
RI/D500 | Extra Strength | Very high strength for demanding structural needs |
RI/E500 | Extra Strength | Suitable for extreme marine conditions |
RI/F500 | Extra Strength | Excellent strength and toughness for critical use |
RI/A550 | Extra Strength | Ultra-high strength for severe applications |
RI/D550 | Extra Strength | Very high strength for extreme conditions |
RI/E550 | Extra Strength | Critical components in harsh environments |
RI/F550 | Extra Strength | Superior strength and toughness |
RI/A620 | Extra Strength | For the most demanding structural applications |
RI/D620 | Extra Strength | Ultra-high strength for large marine components |
RI/E620 | Extra Strength | Designed for critical offshore structures |
RI/F620 | Extra Strength | High strength for extreme conditions |
RI/A690 | Extra Strength | Highest strength in the A series |
RI/D690 | Extra Strength | Very high strength for demanding applications |
RI/E690 | Extra Strength | Maximum durability and toughness for critical use |
RI/F690 | Extra Strength | Exceptional performance in severe environments |