EN 10028-3 P355NL2 Introduce
The EN 10028-3 standard is an important and widely adopted standard for steel products used in pressure vessels and day exchangers applications. It promotes standardization and consistency in the production and use of steel parts and components as well as reducing the risk of accidents. Additionally, it also reduces production time and cost and improves the quality of products by setting out standards for acceptable levels of inclusions, porosity, and surface finish.
Smelting temperature:1932°C - 1765°C
Application:Pressure flat steel products - Part 3: Weldable fine grain steel, normalized
EN 10028-3 P355NL2 Material Chemical Composition
The chemical composition of the EN 10028-3 P355NL2 steel are as follows:
| Element | Min | Max |
|---|---|---|
| Copper (Cu) | - | 0.3000 |
| Aluminum (Al) | 0.0200 | - |
| Molybdenum (Mo) | - | 0.0800 |
| Nickel (Ni) | - | 0.5000 |
| Chromium (Cr) | - | 0.3000 |
| PhOsphorus (P) | - | 0.0250 |
| Sulfur (S) | - | 0.0150 |
| Manganese (Mn) | 0.9000 | 1.7000 |
| Silicon (Si) | - | 0.5000 |
| Carbon (C) | - | 0.1800 |
EN 10028-3 P355NL2 Material Mechanical Properties
EN 10028-3 P355NL2 steel is also known for having excellent corrosion resistance. This is due to a few factors. Firstly, its chromium content helps to resist corrosion by forming a thin oxide film on its surface. Secondly, its relatively low carbon content also prevents the steel from rusting easily. Steel with a higher carbon content is more prone to corrosion.
The mechanical properties of the EN 10028-3 P355NL2 steel are as follows:
| YieldRp0.2 | ≤ 819 (MPa) |
| TeileRm | ≤ 999 (MPa) |
| ImpactKV/Ku | 14(J) |
| ElongationA | 14% |
| Reduction in cross section on fractureZ | 44% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 434 |
EN 10028-3 P355NL2 Material Thermal Properties
The thermal performance parameters of the EN 10028-3 P355NL2 steel are as follows:
| Temperature (°C) | 11 | 982 | 744 |
| Modulus of elasticity (GPa) | - | 722 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 22 |
| Thermal conductivity (W/m·°C) | - | 21.3 | 12.2 |
| Specific thermal capacity (J/kg·°C) | - | 243 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.43 | - | - |
| Deity (kg/dm³) | - | - | 422 |
| Poisson’s coefficient, ν | - | - | 122 |
EN 10028-3 P355NL2 Material Machining Technology
EN 10028-3 P355NL2 steel is a ferritic steel, part of the European standard steel series. It is often used in the manufacturing industry due to its properties, such as superior mechanical and thermal properties. Machining of this steel is becoming increasingly important due to its high strength and good machinability characteristics.