RINA Grade F620
shipbuilding steel plate Product Introduction
The RINA FH620/F620 marine steel plates are a specialized grade of steel designed to meet the rigorous demands of the shipping industry. These plates exhibit excellent mechanical properties, chemical composition, and heat treatment characteristics, making them suitable for various marine applications.
In terms of chemical composition, the RINA FH620/F620 steel plates are composed of carbon, silicon, manganese, phosphorus, sulfur, chromium, nickel, molybdenum, and copper, among other elements. The precise balance of these elements ensures high strength, toughness, and corrosion resistance.
Regarding mechanical properties, the steel plates exhibit excellent tensile strength, yield strength, and elongation. These properties, coupled with good toughness and impact resistance, enable the plates to withstand the extreme loads and dynamic forces encountered in marine environments.
The heat treatment state of RINA FH620/F620 steel plates is carefully controlled to optimize their performance. Typically, these plates undergo normalizing or quenching and tempering processes to achieve the desired mechanical properties. This heat treatment also enhances the steel's resistance to fatigue and stress corrosion cracking.
shipbuilding steel plate Product Details
RINA Grade F620 Mechanical properties
| Yield Rp0.2 (MPa) |
Tensile Rm (MPa) |
Impact KV/Ku (J) |
Elongation A (%) |
Reduction in cross section on fracture Z (%) |
As-Heat-Treated Condition | Brinell hardness (HBW) |
|---|---|---|---|---|---|---|
| 929 (≥) | 523 (≥) | 11 | 21 | 22 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 134 |
RINA Grade F620 Physical properties
The physical properties of RINA Grade F620 steel incorporate high quality, low weight, solidness, ductility and protection from erosion.
| Temperature (°C) |
Modulus of elasticity (GPa) |
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and | Thermal conductivity (W/m·°C) |
Specific thermal capacity (J/kg·°C) |
Specific electrical resistivity (Ω mm²/m) |
Density (kg/dm³) |
Poisson's coefficient, ν |
|---|---|---|---|---|---|---|---|
| 22 | - | - | 0.23 | - | |||
| 345 | 986 | - | 24.3 | 433 | - | ||
| 665 | - | 24 | 22.2 | 132 | 341 |
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