EN 10083-2 C55 Introduce
EN 10083-2 C55 Steel is a family of non-alloy structural steels that conforms to the European standard EN 10083-2 C55. This type of steel is widely used in constructions, machine parts, and vehicles. It has both low tensile strength and good ductility, which makes it suitable for many different purposes. This type of steel has been developed to be highly resistant to corrosion, so it is an excellent material to use in structures and other applications that are exposed to the elements.
Smelting temperature:1794°C - 1799°C
Application:Quenched and tempered steel - Part 2: Technical delivery conditions for non-alloy steel
EN 10083-2 C55 Material Chemical Composition
The chemical composition of the EN 10083-2 C55 steel are as follows:
| Element | Min | Max |
|---|---|---|
| Molybdenum (Mo) | - | 0.1000 |
| Nickel (Ni) | - | 0.4000 |
| Chromium (Cr) | - | 0.4000 |
| PhOsphorus (P) | - | 0.0450 |
| Sulfur (S) | - | 0.0450 |
| Manganese (Mn) | 0.6000 | 0.9000 |
| Silicon (Si) | - | 0.4000 |
| Carbon (C) | 0.5200 | 0.6000 |
EN 10083-2 C55 Material Mechanical Properties
The mechanical properties of EN 10083-2 C55 steel are defined through a variety of tests, including tensile strength, yield strength, elongation, impact strength, and hardness. Tensile strength refers to a material's ability to resist fracture under tension, while yield strength is the amount of force necessary to cause the material to deform. Elongation measures the amount of strain the material can withstand before it fractures, and a harder material indicates better wear resistance.
The mechanical properties of the EN 10083-2 C55 steel are as follows:
| YieldRp0.2 | ≤ 187 (MPa) |
| TeileRm | ≤ 458 (MPa) |
| ImpactKV/Ku | 24(J) |
| ElongationA | 42% |
| Reduction in cross section on fractureZ | 42% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 223 |
EN 10083-2 C55 Material Thermal Properties
The thermal performance parameters of the EN 10083-2 C55 steel are as follows:
| Temperature (°C) | 31 | 556 | 745 |
| Modulus of elasticity (GPa) | - | 692 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 43 |
| Thermal conductivity (W/m·°C) | - | 32.3 | 32.2 |
| Specific thermal capacity (J/kg·°C) | - | 332 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.13 | - | - |
| Deity (kg/dm³) | - | - | 134 |
| Poisson’s coefficient, ν | - | - | 214 |
EN 10083-2 C55 Material Machining Technology
EN 10083-2 C55 steel is a high-strength quenched and tempered steel with excellent mechanical properties. It has a minimum yield strength of 900 MPa and a minimum tensile strength of 1150 MPa, giving it a good balance between strength and ductility. Furthermore, its excellent wear resistance, corrosion resistance and impact toughness make it suitable for a range of industrial and automotive applications.