EN 10028-5 1.8821 Introduce
EN 10028-5 1.8821 is the standard for hot rolled flat products made of steels for pressure purposes. This particular EN norm sets the requirements for flat products of non-alloy steels like P355M, P355ML1, P355ML2, and P420M. Heat treatments are used to improve the strength and toughness of the steel, such as normalizing, annealing, solution treatment, and tempering. The chemical composition of EN 10028-5 1.8821 includes carbon, manganese, phosphorus, sulfur, chromium, nickel, and molybdenum. It is used in a variety of applications in the automotive, power and energy, marine, and fabrication industries.
Smelting temperature:1982°C - 1269°C
Application:Pressure flat steel products - Part 5: Weldable fine grain steel, thermomechanical rolling
EN 10028-5 1.8821 Material Chemical Composition
The chemical composition of the EN 10028-5 1.8821 steel are as follows:
| Element | Min | Max |
|---|---|---|
| Vanadium (V) | - | 0.1000 |
| Titanium (Ti) | - | 0.0500 |
| Silicon (Si) | - | 0.5000 |
| Sulfur (S) | - | 0.0200 |
| PhOsphorus (P) | - | 0.0250 |
| Nickel (Ni) | - | 0.5000 |
| (Nb+Ti+V) | - | 0.1500 |
| Niobium (Nb) | - | 0.0500 |
| Nitrogen (N) | - | 0.0150 |
| Molybdenum (Mo) | - | 0.2000 |
| Manganese (Mn) | - | 1.6000 |
| (Cr+Cu+Mo) | - | 0.6000 |
| (CEV) | - | 0.3900 |
| Carbon (C) | - | 0.1400 |
| Aluminum (Al) | 0.0200 | - |
EN 10028-5 1.8821 Material Mechanical Properties
EN 10028-5 1.8821 is a type of steel that belongs to the family of European steels. It is similar to EN 10025, but it is more corrosion resistant and can withstand higher temperatures. It is made up of a combination of low carbon steel and other alloying elements such as manganese, chromium and molybdenum. This combination of elements gives it greater strength and durability, making it an ideal choice for many applications.
The mechanical properties of the EN 10028-5 1.8821 steel are as follows:
| YieldRp0.2 | ≤ 493 (MPa) |
| TeileRm | ≤ 248 (MPa) |
| ImpactKV/Ku | 24(J) |
| ElongationA | 13% |
| Reduction in cross section on fractureZ | 32% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 341 |
EN 10028-5 1.8821 Material Thermal Properties
The thermal performance parameters of the EN 10028-5 1.8821 steel are as follows:
| Temperature (°C) | 21 | 672 | 995 |
| Modulus of elasticity (GPa) | - | 237 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 13 |
| Thermal conductivity (W/m·°C) | - | 11.3 | 22.2 |
| Specific thermal capacity (J/kg·°C) | - | 442 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.23 | - | - |
| Deity (kg/dm³) | - | - | 131 |
| Poisson’s coefficient, ν | - | - | 132 |
EN 10028-5 1.8821 Material Machining Technology
EN 10028-5 1.8821 steel is a ferritic steel that is suitable for precision machining applications. It is a good choice due to its relatively high corrosion resistance, ductility, and hardness. It is important to use the correct tooling and setup to effectively machine the steel and get the highest precision and quality. By keeping these factors in mind, EN 10028-5 1.8821 steel can be machined efficiently and cost-effectively.