EN 10028-7 X8NiCrAlTi32-21 Introduce
The properties of EN 10028-7 X8NiCrAlTi32-21 make it suitable for many different applications. Its strength is ideal for many types of pressure vessels, while its ductility and flexibility allow it to be used in a wide variety of products, from domestic appliances to aircrafts. Its corrosion and temperature resistance also make it popular in the petrochemical, power and gas industries and its low maintenance costs make it a popular choice in many commercial and industrial environments. In addition to its versatility, EN 10028-7 X8NiCrAlTi32-21 is also renowned for its sustainability. Recycling and reuse of steel is heavily practiced to reduce energy costs, emissions, and help promote sustainability. This recycling process does not reduce the strength or quality of the steel, making it a top choice for environmentally conscious customers.
Smelting temperature:1181°C - 1712°C
Application:Flat products made of steels for pressure purposes - part 7: stainless steels
EN 10028-7 X8NiCrAlTi32-21 Material Chemical Composition
The chemical composition of the EN 10028-7 X8NiCrAlTi32-21 steel are as follows:
| Element | Min | Max |
|---|---|---|
| Cobalt (Co) | - | 0.5000 |
| Nitrogen (N) | - | 0.0300 |
| Copper (Cu) | - | 0.5000 |
| Titanium (Ti) | 0.2500 | 0.6500 |
| Aluminum (Al) | 0.2000 | 0.6500 |
| Nickel (Ni) | 30.0000 | 34.0000 |
| Chromium (Cr) | 19.0000 | 22.0000 |
| PhOsphorus (P) | - | 0.0150 |
| Sulfur (S) | - | 0.0100 |
| Manganese (Mn) | - | 1.5000 |
| Silicon (Si) | - | 0.7000 |
| Carbon (C) | 0.0500 | 0.1000 |
| (Ni+Co) | 30.0000 | 34.0000 |
| Aluminum (Al) | 0.2500 | 0.6500 |
EN 10028-7 X8NiCrAlTi32-21 Material Mechanical Properties
The tensile strength of a material is another important mechanical property and is defined as the maximum stress that can be applied before the material begins to deform plastically. The tensile strength of EN 10028-7 X8NiCrAlTi32-21 is usually much higher than its yield strength, ranging from 600MPa to 830MPa depending on the thickness of the material.
The mechanical properties of the EN 10028-7 X8NiCrAlTi32-21 steel are as follows:
| YieldRp0.2 | ≤ 965 (MPa) |
| TeileRm | ≤ 589 (MPa) |
| ImpactKV/Ku | 32(J) |
| ElongationA | 34% |
| Reduction in cross section on fractureZ | 14% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 342 |
EN 10028-7 X8NiCrAlTi32-21 Material Thermal Properties
The thermal performance parameters of the EN 10028-7 X8NiCrAlTi32-21 steel are as follows:
| Temperature (°C) | 22 | 481 | 593 |
| Modulus of elasticity (GPa) | - | 487 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 14 |
| Thermal conductivity (W/m·°C) | - | 23.3 | 42.2 |
| Specific thermal capacity (J/kg·°C) | - | 312 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.24 | - | - |
| Deity (kg/dm³) | - | - | 123 |
| Poisson’s coefficient, ν | - | - | 112 |
EN 10028-7 X8NiCrAlTi32-21 Material Machining Technology
Another challenge with machining EN 10028-7 X8NiCrAlTi32-21 steel is its ability to work-harden. When exposed to high temperatures, this steel can build up stress and become more brittle. This can make it harder to the machine and can increase the risk of tool breakage and other issues.