DIN 10028-7 X5CrNiN19-9 Introduce
DIN 10028-7 X5CrNiN19-9 applies to both normalized and quenched and tempered materials. The range of materials suitable for use includes high-tensile steels, steels with improved weldability, carbon-manganese steels, stainless and heat-resistant steels and creep-resistant steels. These materials are referred to as 'pressure vessel steels' and are suitable for use in a wide range of pressure vessel applications, including boilers, reactors and other vessels where pressure plays an important role.
Smelting temperature:1452°C - 1974°C
Application:Flat products made of steels for pressure purposes - part 7: stainless steels
DIN 10028-7 X5CrNiN19-9 Material Chemical Composition
The chemical composition of the DIN 10028-7 X5CrNiN19-9 steel are as follows:
Element | Min | Max |
---|---|---|
Silicon (Si) | - | 1.0000 |
Sulfur (S) | - | 0.0150 |
PhOsphorus (P) | - | 0.0450 |
Nickel (Ni) | 8.0000 | 11.0000 |
Nitrogen (N) | 0.1200 | 0.2200 |
Manganese (Mn) | - | 2.0000 |
Chromium (Cr) | 18.0000 | 20.0000 |
Carbon (C) | - | 0.0600 |
DIN 10028-7 X5CrNiN19-9 Material Mechanical Properties
DIN 10028-7 X5CrNiN19-9 steel also has outstanding thermal properties. The melting point of the alloy is approximately 2750°F (1510°C). At this temperature, the steel will begin to recrystallize and form a weaker structure that is more prone to fracture if subjected to a sudden shock. When heated, the alloy will become softer and more malleable. This makes it easier to work with and shape into various components.
The mechanical properties of the DIN 10028-7 X5CrNiN19-9 steel are as follows:
YieldRp0.2 | ≤ 821 (MPa) |
TeileRm | ≤ 748 (MPa) |
ImpactKV/Ku | 41(J) |
ElongationA | 42% |
Reduction in cross section on fractureZ | 11% |
As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
Brinell hardness (HBW) | 344 |
DIN 10028-7 X5CrNiN19-9 Material Thermal Properties
The thermal performance parameters of the DIN 10028-7 X5CrNiN19-9 steel are as follows:
Temperature (°C) | 42 | 863 | 458 |
Modulus of elasticity (GPa) | - | 373 | - |
Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 12 |
Thermal conductivity (W/m·°C) | - | 31.3 | 42.2 |
Specific thermal capacity (J/kg·°C) | - | 422 | - |
Specific electrical resistivity (Ω mm²/m) | 0.31 | - | - |
Deity (kg/dm³) | - | - | 211 |
Poisson’s coefficient, ν | - | - | 414 |
DIN 10028-7 X5CrNiN19-9 Material Machining Technology
DIN 10028-7 X5CrNiN19-9 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. The machining of DIN 10028-7 X5CrNiN19-9 steel is a complex and challenging process which involves turning, drilling and milling operations. The tools and cutting speeds used must be carefully selected in order to achieve the desired shape and finish on the workpiece.