EN 10028-7 1.4959 Introduce
EN 10028-7 1.4959 is made in a range of grades and specifications, dependent on the application and manufacture that it will be used for. The three grades are P235, P355 and P460. The 'P' stands for pressure and specifies the minimum yield strength of the steel, for example P235 is for steel of minimum yield strength 235MPa, P355 for 355MPa and so on. Other properties such as chemical composition and mechanical properties are defined in the standard.
Smelting temperature:1659°C - 1446°C
Application:Flat products made of steels for pressure purposes - part 7: stainless steels
EN 10028-7 1.4959 Material Chemical Composition
The chemical composition of the EN 10028-7 1.4959 steel are as follows:
| Element | Min | Max |
|---|---|---|
| Carbon (C) | 0.0500 | 0.1000 |
| Manganese (Mn) | - | 1.5000 |
| PhOsphorus (P) | - | 0.0150 |
| Sulfur (S) | - | 0.0100 |
| Silicon (Si) | - | 0.7000 |
| Nickel (Ni) | 30.0000 | 34.0000 |
| Chromium (Cr) | 19.0000 | 22.0000 |
| Copper (Cu) | - | 0.5000 |
| Titanium (Ti) | 0.2500 | 0.6500 |
| Aluminum (Al) | 0.2000 | 0.6500 |
| Nitrogen (N) | - | 0.0300 |
| Cobalt (Co) | - | 0.5000 |
| Aluminum (Al) | 0.2500 | 0.6500 |
| (Ni+Co) | 30.0000 | 34.0000 |
EN 10028-7 1.4959 Material Mechanical Properties
Before discussing the mechanical properties of EN 10028-7 1.4959, it is important to understand the chemical composition of this steel grade. EN 10028-7 1.4959 steel is an alloy containing chromium (Cr), Manganese (Mn), Nickel (Ni), Molybdenum (Mo), and Silicon (Si). It also contains trace amounts of other elements such as Copper (Cu) and Phosphorus (P). The chemical composition of EN 10028-7 1.4959 steel is specified in EN 10028-7 1.4959.
The mechanical properties of the EN 10028-7 1.4959 steel are as follows:
| YieldRp0.2 | ≤ 419 (MPa) |
| TeileRm | ≤ 585 (MPa) |
| ImpactKV/Ku | 42(J) |
| ElongationA | 22% |
| Reduction in cross section on fractureZ | 41% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 421 |
EN 10028-7 1.4959 Material Thermal Properties
The thermal performance parameters of the EN 10028-7 1.4959 steel are as follows:
| Temperature (°C) | 31 | 219 | 146 |
| Modulus of elasticity (GPa) | - | 699 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 31 |
| Thermal conductivity (W/m·°C) | - | 24.3 | 24.2 |
| Specific thermal capacity (J/kg·°C) | - | 434 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.34 | - | - |
| Deity (kg/dm³) | - | - | 222 |
| Poisson’s coefficient, ν | - | - | 331 |
EN 10028-7 1.4959 Material Machining Technology
Steel is an essential material used in many industries and applications, and it is important to understand how to machine it correctly. EN 10028-7 1.4959 steel is a special grade of steel used in pressure vessels and boilers, and machining it correctly is vital to ensure a successful result.