DIN 10028-7 X3CrNi17 Introduce
The steel industry is one of the largest in the world. It produces materials used in a variety of industries, and its products are used in the construction of buildings, bridges and other structures. Steel standards are the guidelines that dictate the quality and characteristics of steel products that are sold and traded in the market. One such standard is the DIN 10028-7, which describes the requirements for hot-rolled and forged steels used in the manufacture of pressure vessels.
Smelting temperature:1117°C - 1141°C
Application:Flat products made of steels for pressure purposes - part 7: stainless steels
DIN 10028-7 X3CrNi17 Material Chemical Composition
The chemical composition of the DIN 10028-7 X3CrNi17 steel are as follows:
| Element | Min | Max |
|---|---|---|
| Chromium (Cr) | 16.0000 | 18.0000 |
| PhOsphorus (P) | - | 0.0400 |
| Sulfur (S) | - | 0.0150 |
| Manganese (Mn) | - | 1.0000 |
| Silicon (Si) | - | 1.0000 |
| Carbon (C) | - | 0.0500 |
DIN 10028-7 X3CrNi17 Material Mechanical Properties
Tensile strength is the measure of a materials ability to withstand tensile forces before it breaks. DIN 10028-7 X3CrNi17 steel has a very high tensile strength. This is because of its composition, which is composed of high-strength alloys such as carbon, manganese, and chromium. This high strength allows for the material to be used in many applications, such as in load-bearing structures and machinery parts. The steel has a tensile strength range of 550 MPa (80000 psi) up to 800 MPa (116000 psi).
The mechanical properties of the DIN 10028-7 X3CrNi17 steel are as follows:
| YieldRp0.2 | ≤ 249 (MPa) |
| TeileRm | ≤ 319 (MPa) |
| ImpactKV/Ku | 21(J) |
| ElongationA | 34% |
| Reduction in cross section on fractureZ | 43% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 442 |
DIN 10028-7 X3CrNi17 Material Thermal Properties
The thermal performance parameters of the DIN 10028-7 X3CrNi17 steel are as follows:
| Temperature (°C) | 24 | 964 | 633 |
| Modulus of elasticity (GPa) | - | 794 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 31 |
| Thermal conductivity (W/m·°C) | - | 32.3 | 21.2 |
| Specific thermal capacity (J/kg·°C) | - | 331 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.22 | - | - |
| Deity (kg/dm³) | - | - | 142 |
| Poisson’s coefficient, ν | - | - | 341 |
DIN 10028-7 X3CrNi17 Material Machining Technology
DIN 10028-7 X3CrNi17 steel is a ferritic stainless steel which is often used as a piping material in industries such as the food, dairy, pharmaceutical and chemical industries. This alloy has a variety of unique mechanical and chemical properties that make it suitable for a number of applications. Steel of this classification is composed of chromium (19-23 wt%), molybdenum (3-5 wt%), nitrogen (0.1-0.5 wt%) and nickel (7-11 wt%). This steel is available in a range of shapes, sizes and grades and is used as a machining material in a number of different industries.