EN 10088-1 X2CrTi21 Introduce
EN 10088-1 X2CrTi21 is applicable to flat products; long products including bars and rods, wire and slabs; oxide-coated products; and corrosion-resistant products such as valves and fittings. It covers stainless steels of the following grades: austenitic, ferritic, martensitic, and duplex (a blend of austenitic and ferritic) as well as precipitation-hardening steels. The standard also designates several additional application requirements for these grades, such as temper rolling or cold processing, or additional heat treatment or surface modifications.
Smelting temperature:1297°C - 1737°C
Application:Stainless steels. List of stainless steels
EN 10088-1 X2CrTi21 Material Chemical Composition
The chemical composition of the EN 10088-1 X2CrTi21 steel are as follows:
| Element | Min | Max |
|---|---|---|
| Carbon (C) | - | 0.0300 |
| Manganese (Mn) | - | 1.0000 |
| PhOsphorus (P) | - | 0.0500 |
| Sulfur (S) | - | 0.0500 |
| Silicon (Si) | - | 1.0000 |
| Nickel (Ni) | - | 0.5000 |
| Chromium (Cr) | 19.0000 | 22.0000 |
| Molybdenum (Mo) | - | 0.5000 |
| Copper (Cu) | - | 0.5000 |
| Titanium (Ti) | - | 1.0000 |
| Aluminum (Al) | - | 0.0500 |
EN 10088-1 X2CrTi21 Material Mechanical Properties
EN 10088-1 X2CrTi21 steels are also highly heat resistant. This property is the result of the combination of elements in the alloy, as well as the specific heat treatments used in the fabrication of the steel. This property makes EN 10088-1 X2CrTi21 steels a great choice for applications where the steel must be subjected to high temperatures, such as components of a vehicle's exhaust system.
The mechanical properties of the EN 10088-1 X2CrTi21 steel are as follows:
| YieldRp0.2 | ≤ 375 (MPa) |
| TeileRm | ≤ 791 (MPa) |
| ImpactKV/Ku | 32(J) |
| ElongationA | 12% |
| Reduction in cross section on fractureZ | 21% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 144 |
EN 10088-1 X2CrTi21 Material Thermal Properties
The thermal performance parameters of the EN 10088-1 X2CrTi21 steel are as follows:
| Temperature (°C) | 31 | 928 | 926 |
| Modulus of elasticity (GPa) | - | 669 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 21 |
| Thermal conductivity (W/m·°C) | - | 31.3 | 42.2 |
| Specific thermal capacity (J/kg·°C) | - | 211 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.31 | - | - |
| Deity (kg/dm³) | - | - | 342 |
| Poisson’s coefficient, ν | - | - | 433 |
EN 10088-1 X2CrTi21 Material Machining Technology
The machining process for EN 10088-1 X2CrTi21 steel follows the same basic steps as other types of steel, but it can be more difficult due to the material's hardness and higher resistance to heat. First, the material must be cut, which may be done either by hand-held tools or by a machine. Hand tools such as hacksaws, files, and chisels can be used to achieve the desired shape or size. If using a machine, the appropriate feed rate and cutting tool must be determined in order to obtain the desired results.