Grade 1.4571

1.4571 – The Stainless Steel for Maximum Corrosion Resistance in Aggressive Environments

1.4571, also known as AISI 316Ti, is an austenitic stainless steel specifically developed for demanding environments with high corrosion exposure. Stabilized with titanium, 1.4571 combines the outstanding corrosion resistance of molybdenum-alloyed steels with enhanced resistance to intergranular corrosion. This makes it a preferred choice in the chemical industry, plant engineering, and maritime applications.

Key Properties of 1.4571

Excellent Corrosion Resistance

Thanks to its molybdenum content (approx. 2–2.5%) and titanium stabilization, 1.4571 offers exceptional resistance to pitting, crevice, and general corrosion, especially in chloride-containing and acidic environments.

Titanium Stabilization

Titanium prevents the formation of chromium carbides at grain boundaries and protects the material from intergranular corrosion, even after welding.

Excellent Heat Resistance

1.4571 is heat-resistant up to approx. 500 °C in oxidizing environments and suitable for thermally stressed applications.

Versatile Applications

This alloy combines mechanical strength, weldability, and corrosion resistance, making it suitable for various industrial sectors.

Technical Specifications and Advantages

• Material number: 1.4571 (X6CrNiMoTi17-12-2) according to DIN EN 10088-1
• Alloying elements:
• Chromium (approx. 16–18%), Nickel (approx. 10–14%), Molybdenum (approx. 2–2.5%), Titanium (approx. 5× carbon content), remainder iron
• Tensile strength: 500–700 MPa
• Delivery condition: Available as sheets, bars, tubes, profiles, and cut-to-size parts
• Surface finishes: Mill finish, ground, polished, or coated

Typical Applications of 1.4571

Chemical Industry

Used for tanks, reactors, and pipelines exposed to aggressive chemicals such as acids and alkalis.

Maritime Applications

Due to its resistance to saltwater and chloride-rich environments, 1.4571 is ideal for offshore structures, shipbuilding, and port infrastructure.

Plant and Equipment Construction

Used in heat exchangers, boilers, and exhaust systems exposed to high temperatures and chemical stress.

Food and Pharmaceutical Industry

Suitable for hygienic production environments with strict corrosion and cleanliness requirements.

Architecture and Construction

Ideal for facades, railings, and roof structures that must be both durable and visually appealing.

Conclusion

1.4571 is the perfect choice for applications requiring maximum corrosion resistance and stability. Whether in the chemical industry, maritime environments, or thermally demanding processes – 1.4571 offers reliability and longevity. Contact us to learn more about 1.4571 or to receive a tailored quote for your specific requirements.

Frequently Asked Questions (FAQ) about 1.4571