EN 10025-5 1.8958 Introduce
The EN 10025-5 is a European technical specification that provides technical specifications for the design and procurement of steel materials. It outlines five classes of steel—namely S235, S355, S420, S450 and S500—that have different levels of strength, toughness and weldability. These classes of steel are used for a variety of purposes, including the fabrication of construction materials, frames, columns, bridges and tanks.
Smelting temperature:1725°C - 1812°C
Application:Hot rolled structural steel products - Part 5: Technical conditions for improved atmospheric corrosion resistance of structural steel
EN 10025-5 1.8958 Material Chemical Composition
The chemical composition of the EN 10025-5 1.8958 steel are as follows:
| Element | Min | Max |
|---|---|---|
| Silicon (Si) | - | 0.4000 |
| Sulfur (S) | - | 0.0400 |
| PhOsphorus (P) | - | 0.0400 |
| Nickel (Ni) | - | 0.6500 |
| Nitrogen (N) | - | 0.0090 |
| Manganese (Mn) | 0.2000 | 0.6000 |
| Copper (Cu) | 0.2500 | 0.5500 |
| Chromium (Cr) | 0.4000 | 0.8000 |
| Carbon (C) | - | 0.1300 |
| Silicon (Si) | - | 0.4500 |
| Sulfur (S) | - | 0.0400 |
| PhOsphorus (P) | - | 0.0400 |
| Nitrogen (N) | - | 0.0100 |
| Manganese (Mn) | 0.1500 | 0.7000 |
| Copper (Cu) | 0.2000 | 0.6000 |
| Chromium (Cr) | 0.3500 | 0.8500 |
| Carbon (C) | - | 0.1600 |
EN 10025-5 1.8958 Material Mechanical Properties
Tensile strength measures the force required to break or permanently deform the steel. The tensile strength of EN 10025-5 1.8958 is 470 to 630 MPa for grades S235, S275 and S355.
The mechanical properties of the EN 10025-5 1.8958 steel are as follows:
| YieldRp0.2 | ≤ 392 (MPa) |
| TeileRm | ≤ 496 (MPa) |
| ImpactKV/Ku | 21(J) |
| ElongationA | 13% |
| Reduction in cross section on fractureZ | 43% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 441 |
EN 10025-5 1.8958 Material Thermal Properties
The thermal performance parameters of the EN 10025-5 1.8958 steel are as follows:
| Temperature (°C) | 32 | 358 | 873 |
| Modulus of elasticity (GPa) | - | 137 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 33 |
| Thermal conductivity (W/m·°C) | - | 42.3 | 11.2 |
| Specific thermal capacity (J/kg·°C) | - | 311 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.32 | - | - |
| Deity (kg/dm³) | - | - | 421 |
| Poisson’s coefficient, ν | - | - | 142 |
EN 10025-5 1.8958 Material Machining Technology
Turning is a machining process in which a cutting tool is moved in a rotary motion against a stationary piece of material. It is typically used to create precision components such as cylinders, cones and shapes with an inner or outer diameter. When working with EN 10025-5 1.8958 steel, high-speed steel (HSS) or carbide tools are generally used.