EN 10025-5 S355K2W Introduce
The EN 10025-5 S355K2W is a European technical specification that applies to hot-rolled products made from structural steels in all shapes and sizes. It also provides information on the weldability of the steel, physical and chemical properties and mechanical characteristics. The specification also includes a range of additional quality and performance requirements. It applies to both weldable and non-weldable structural steels and covers steel grades corresponding to all European standards.
Smelting temperature:1787°C - 1487°C
Application:Hot rolled structural steel products - Part 5: Technical conditions for improved atmospheric corrosion resistance of structural steel
EN 10025-5 S355K2W Material Mechanical Properties
Hardness measures the resistance to wear and scratching. The hardness of EN 10025-5 steel is typically between 235 and 440 Brinell.
The mechanical properties of the EN 10025-5 S355K2W steel are as follows:
| YieldRp0.2 | ≤ 296 (MPa) |
| TeileRm | ≤ 333 (MPa) |
| ImpactKV/Ku | 32(J) |
| ElongationA | 32% |
| Reduction in cross section on fractureZ | 42% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 411 |
EN 10025-5 S355K2W Material Thermal Properties
The thermal performance parameters of the EN 10025-5 S355K2W steel are as follows:
| Temperature (°C) | 44 | 482 | 729 |
| Modulus of elasticity (GPa) | - | 281 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 43 |
| Thermal conductivity (W/m·°C) | - | 12.3 | 13.2 |
| Specific thermal capacity (J/kg·°C) | - | 121 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.44 | - | - |
| Deity (kg/dm³) | - | - | 313 |
| Poisson’s coefficient, ν | - | - | 321 |
EN 10025-5 S355K2W Material Machining Technology
EN 10025-5 S355K2W steel is a popular material for machining due to its excellent properties and low cost. It can be machined using various techniques such as drilling, milling, turning, and grinding. In order to achieve good results and a high-quality finish, it is important to follow best practices such as selecting the correct tool material, using the appropriate speeds and feeds, and using coolants to reduce friction and heat.