Grade 1.4541

1.4541 – The Heat-Resistant Stainless Steel for Demanding Applications

1.4541, also known as AISI 321, is an austenitic stainless steel designed for applications that require high heat resistance and corrosion resistance. Stabilized with titanium, 1.4541 offers excellent resistance to intergranular corrosion, even after welding. These properties make it ideal for use in the chemical industry, equipment manufacturing, and aerospace.

Key Properties of 1.4541

Heat Resistance up to 850 °C

1.4541 maintains its mechanical properties and corrosion resistance at temperatures up to 850 °C, making it ideal for thermal applications.

Titanium Stabilization

The addition of titanium prevents the precipitation of chromium carbides at grain boundaries and protects the material from intergranular corrosion.

Good Corrosion Resistance

1.4541 offers reliable resistance to moisture, humidity, and weak acids.

Excellent Weldability

Thanks to titanium stabilization, 1.4541 is very weldable and does not require post-weld heat treatment.

Technical Specifications and Advantages

• Material number: 1.4541 (X6CrNiTi18-10) according to DIN EN 10088-1
• Alloying elements:
• Chromium (approx. 17–19%), Nickel (approx. 9–12%), Titanium (approx. 5 times the carbon content), remainder iron
• Tensile strength: 500–700 MPa
• Delivery forms: Available as sheets, bars, tubes, profiles, and cut-to-size products
• Surface finishes: Mill finish, ground, polished, or coated

Typical Applications of 1.4541

Chemical Industry

Ideal for manufacturing systems and pipelines used in moderately aggressive environments.

Equipment Manufacturing

Perfect for building heat exchangers, boilers, and exhaust systems exposed to high temperatures and corrosive conditions.

Aerospace Industry

Used in aerospace components that must withstand thermal stress.

Automotive Industry

Used in exhaust systems and other parts exposed to high temperatures and corrosive exhaust gases.

Food and Pharmaceutical Industry

Due to its hygienic properties and heat resistance, 1.4541 is also used in production systems and containers.

Conclusion

1.4541 is the ideal stainless steel for applications requiring both high heat resistance and protection against intergranular corrosion. Especially in the chemical industry, equipment manufacturing, and thermal environments, 1.4541 stands out for its stability and durability. Contact us to learn more about 1.4541 or to receive a tailored offer for your specific requirements.

Frequently Asked Questions (FAQ) about 1.4541