DIN EN 1.4541 stainless steel (X6CrNiTi18-10) is a variant version of 1.4301. The addition of titanium stabilizes carbides without sensitization, because titanium forms more stable carbides than chromium. These carbides remove carbon from the solid solution and prevent the precipitation of chromium carbide. Therefore, this material is also called stabilized stainless steel. 1.4541 material has high corrosion resistance, good weldability and cold formability.
The following tables and lists give the stainless steel 1.4541 datasheet and specification including chemical composition, physical properties and mechanical properties, heat treatment, welding, etc.
DIN EN 1.4541 material chemical composition is listed in the following table based on cast analysis.
| Chemical Composition, % | ||||||||||
| Country (Region) | Standard | Steel Grade (Steel Number) | C, ≤ | Si, ≤ | Mn, ≤ | P, ≤ | S, ≤ | Cr | Ni | Ti |
| European Union | EN 10088-2; EN 10088-3 | X6CrNiTi18-10 (1.4541) | 0,08 | 1,00 | 2,00 | 0,045 | 0,015 | 17,0-19,0 | 9,0-12,0 | 5xC to 0,70 |
DIN 1.4541 stainless steel physical properties are given in the following lists, including density, thermal expansion, elastic modulus, thermal conductivity, specific heat capacity and electrical resistance.
Notes:
| Physical Properties | |
| Density, g/cm3 | 7,9 |
| Magnetic | No |
| Electrical resistivity, μΩ·m | 0,73 (20 ℃) |
| Specific heat capacity, J/(kg·K) | 500 (20 ℃) |
| Thermal conductivity, (W/m·K) | 15,0 (20 ℃) |
| Modulus of elasticity, Gpa | 200 (20 ℃) |
| 194 (100 ℃) | |
| 186 (200 ℃) | |
| 179 (300 ℃) | |
| 172 (400 ℃) | |
| 165 (500 ℃) | |
| Mean coefficient of thermal expansion, (10-6/K) | 16,0 (20-100 ℃) |
| 16,5 (20-200 ℃) | |
| 17,0 (20-300 ℃) | |
| 17,5 (20-400 ℃) | |
| 18,0 (20-500 ℃) | |
EN 1.4541 stainless steel mechanical properties 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 (t) in mm | Hardness (HB), ≤ | 0.2% yield strength (MPa), ≥ | 1% yield strength (MPa), ≥ | Tensile strength (MPa) | Elongation, % (long.) | Elongation, % (tr.) | Impact energy, KV2, J (long.), ≥ | Impact energy, KV2, J (tr.), ≥ | Resistance to intergranular corrosion (In the delivery & sensitized condition) |
| European Union | EN 10088-3 | X6CrNiTi18-10 (1.4541) | ≤160 | 215 | 190 | 225 | 500-700 | 40 | – | 100 | – | Yes |
160|
– |
30 |
– |
60 |
| ||||||||
| Mechanical properties (Solution annealed) | |||||||||||
| Country (Region) | Standard | Steel Grade (Steel Number) | Product Condition | Thickness (mm), ≤ | 0,2 % proof strength (Mpa), ≥ | 1% proof strength (MPa), ≥ | Tensile strength (MPa) | Elongation (%), ≥, (tr.) | Impact energy, KV2, J (long.), ≥ | Impact energy, KV2, J (tr.), ≥ | Resistance to intergranular corrosion (In the delivery & sensitized condition) |
| European Union | DIN EN 10088-2 | X6CrNiTi18-10 (1.4541) | cold rolled strip | 8 | 220 | 250 | 520-720 | 40 | – | – | Yes |
| hot rolled strip | 13,5 | 200 | 240 | 520-720 | 100 | 60 | |||||
| hot rolled plate | 75 | 200 | 240 | 500-700 | |||||||
Minimum values for yield strength of 1.4541 steel at elevated temperatures.
| Steel designation (Number) | 0,2% proof strength, MPa, ≥ | 1% proof strength, MPa, ≥ | Temperature (°C) | Heat treatment condition |
| X6CrNiTi18-10 (1.4541) | 175 | 205 | 100 | +AT (solution annealed) |
| 165 | 195 | 150 | ||
| 155 | 185 | 200 | ||
| 145 | 175 | 250 | ||
| 136 | 167 | 300 | ||
| 130 | 161 | 350 | ||
| 125 | 156 | 400 | ||
| 121 | 152 | 450 | ||
| 119 | 149 | 500 | ||
| 118 | 147 | 550 |
The following is material 1.4541 stainless steel heat treatment, such as hot forming, solution annealing.
For solution annealing of 1.4541 material, if the heat treatment is performed in a continuous furnace, it’s usually preferable to specify an upper limit of the temperature range or even exceed it, and cooling should be sufficiently rapidly to avoid precipitation.
| Hot forming | Solution annealing | ||||
| Standard | Designation (Steel number) | Temperature, ℃ | Type of cooling | Temperature, ℃ | Type of cooling |
| DIN EN 10088-2 | X6CrNiTi18-10 (1.4541) | 1150 to 850 | air | 1000 to 1100 | water, air |
| DIN EN 10088-3 | 1200 to 900 | 1020 to 1120 | |||
EN 1.4541 stainless steel has excellent weldability. All common welding processes can be used with or without filler metal. If filler metal is required, 1.4316 and 1.4551 are recommended. The maximum interpass temperature during welding is 200 °C. No pre-heating and post-weld heat treatment is required. Due to the addition of titanium, it has excellent resistance to intergranular corrosion and is not affected by the thickness of the workpiece.
The PREN value of 1.4541 steel is about 17-19. It still has the ability to resist intergranular corrosion after welding, but it is not suitable for long-term use in seawater to avoid causing pitting corrosion.
Equipment and parts for the food and chemical industry.
Material X6CrNiTi18-10, DIN 1.4541 stainless steel equivalent to US ASTM AISI SAE, ISO, European (German DIN, British BSI, France NF), Japanese JIS and Chinese GB standard (for reference).
| EN X6CrNiTi18-10 (1.4541) material equivalent grade | |||||||||
| European Union | US | ISO | China | Japan | |||||
| Standard | Steel Name (Material Number) | Standard | Grade (UNS) | Standard | Grade (ISO number ) | Standard | Grade (UNS) | Standard | Grade |
|
EN 10088-2; EN 10088-3 |
X6CrNiTi18-10 (1.4541) |
AISI; ASTM A240/A240M; ASTM A276/A276M; |
321 (UNS S32100) | ISO 15510 | X6CrNiTi18-10 (4541-321-00-I ) |
GB/T 1220; GB/T 3280 |
0Cr18Ni10Ti; 06Cr18Ni11Ti (new designation) (S32168) |
JIS G4303; JIS G4304; JIS G4305 |
SUS321 |