1.4541
1.4541 (321) is a titanium-stabilised austenitic stainless steel – intergranular-resistant even at higher temperatures, without molybdenum.
Application & properties
1.4541 (321) is a titanium-stabilised austenitic stainless steel – intergranular-resistant even at higher temperatures, without molybdenum.
- Exhaust and heat-exchanger construction
- Chemical and process plants at higher temperatures
- Welded apparatus and piping
Chemical composition
Typical values in wt.-% per EN standard (heat analysis).
| Element | Content (%) |
|---|---|
| C | ≤ 0.08 |
| Si | ≤ 1.00 |
| Mn | ≤ 2.00 |
| Cr | 17.0–19.0 |
| Ni | 9.0–12.0 |
| Ti | 5×C–0.70 |
Mechanical properties
Typical values at room temperature per EN standard.
| Property | Value |
|---|---|
| Yield strength Rp0.2 | ≥ 200 MPa |
| Tensile strength Rm | 500–720 MPa |
| Elongation A | ≥ 40 % |
Standards, equivalents & product forms
| Topic | Detail |
|---|---|
| Standards | EN 10216-5, EN 10088 |
| ASME/ASTM equivalent | ~ AISI 321 |
| Material no. | 1.4541 |
| Short name / aka | X6CrNiTi18-10 · AISI 321 |
We supply 1.4541 as pipes, flanges and fittings – seamless or welded, on request with an EN 10204 3.1 / 3.2 mill certificate.
Frequently asked questions about 1.4541
What is the difference between 1.4541 and 1.4571?
Both are titanium-stabilised; 1.4571 (316Ti) additionally contains molybdenum and is thus more chloride-resistant, while 1.4541 (321) is molybdenum-free.
What is 1.4541 typically used for?
For higher-temperature welded applications such as exhaust lines and heat exchangers.
Request 1.4541?
Grade, standard, size, pressure rating and quantity are enough – on request with an EN 10204 3.1 / 3.2 mill certificate. Your quote usually the same day.
All data are typical values per the relevant EN standards for first orientation – without warranty. The applicable standard and the mill certificate of the delivery are decisive.