DIN EN 1.4305 Stainless Steel Material X8CrNiS18-9
DIN EN 1.4305 stainless steel (material pitting or cavity may occur. X8CrNiS18-9 steel forms short chips during cutting and is therefore particularly suitable for machining. Due to the material properties, this stainless steel is also known as free-cutting steel.
Compared to material 1.4301, DIN 1.4305 V2A has higher sulfur content and contains 1.0% copper.
1.4305 Material Properties
The following technical sheet and specifications summarize the properties of the DIN EN 1.4305 standard, such as chemical composition, physical and mechanical properties, heat treatment, welding, etc.
Chemical composition
The following table lists the chemical composition of 1.4305 stainless steel based on casting analysis.
| Chemical composition, % | ||||||||||
| Standard | Steel grade (steel number) | C, ≤ | Yes, ≤ | Mn, ≤ | P, ≤ | s | Cr | No | N, ≤ | Cu, ≤ |
| EN 10088-2; EN 10088-3 |
X8CrNiS18-9 (1.4305) | 0.10 | 1.00 | 2.00 | 0.045 | 0.15-0.35 | 17.0-19.0 | 8.0-10.0 | 0.10 | 1.00 |
Physical properties
Grades:
- 1g/cm3 = 1kg/dm3 = 1000kg/m3;
- 1 μΩ·m = 1 Ω·mm²/m
- 1 GPa = 1kN/mm2
| Physical properties | |
| Density, g/cm3 (Kg/m3) | 7.9 (7900) |
| Magnetic | No |
| Specific heat capacity, J/(Kg·K) | 500 (20ºC) |
| Electrical resistivity, μΩ·m | 0.73 (20ºC) |
| Modulus of elasticity, GPa | 210 (20ºC) |
| 194 (100°C) | |
| 186 (200°C) | |
| 179 (300ºC) | |
| 172 (400°C) | |
| 165 (500°C) | |
| Thermal conductivity, (W/m·K) | 15.0 (20°C) |
| Average coefficient of thermal expansion, (10 -6 /K) | 16.0 (20-100°C) |
| 16.5 (20-200°C) | |
| 17.0 (20-300°C) | |
| 17.5 (20-400°C) | |
| 18.0 (20-500°C) | |
Mechanical properties
Material 1.4305 mechanical properties of stainless steel at room temperature in the solution annealed condition and resistance to intergranular corrosion.
| Mechanical properties (solution annealed) | |||||||||
| Country (Region) | Standard | Steel grade (steel number) | Diameter (d) or Thickness | ||||||
