EN 1.4571 Austenitic Stainless Steel – Titanium-Stabilized High-Temp Alloy

Description

EN 1.4571 is a titanium-stabilized austenitic stainless steel, corresponding to AISI 316Ti, designed to enhance high-temperature stability and intergranular corrosion resistance. It contains the same chromium, nickel, and molybdenum content as EN 1.4401, with the addition of 0.10-0.20% titanium- which binds with carbon to prevent chromium carbide precipitation at elevated temperatures, eliminating sensitization. Unlike EN 1.4401 and EN 1.4404, EN 1.4571 offers superior creep resistance and intergranular corrosion resistance at temperatures up to 800°C, making it ideal for high-temperature applications in chemical and petrochemical industries. It remains non-magnetic at room temperature, has good formability and weldability, and retains the chloride resistance of the 316 series.

Chemical Composition (wt%)

C ≤ 0.08, Cr: 16.00-18.50, Ni: 10.00-14.00, Mo: 2.00-3.00, Ti: 0.10-0.20, Mn ≤ 2.00, Si ≤ 1.00, P ≤ 0.045, S ≤ 0.030

Mechanical Properties

Tensile Strength ≥ 520 MPa, Yield Strength ≥ 205 MPa, Elongation ≥ 40%, Hardness ≤ 215 HB

Advantages

Titanium-stabilized to prevent sensitization; superior high-temperature creep and intergranular corrosion resistance vs. EN 1.4401; excellent chloride corrosion resistance; non-magnetic; good weldability and formability; ideal for high-heat corrosive applications.

Applications

High-temperature chemical reactors, petrochemical piping, heat exchangers, furnace components, and industrial systems requiring high-heat stability and corrosion resistance.

Equivalent Grades

AISI 316Ti, UNS S31635, GB 06Cr17Ni12Mo2Ti, SUS316Ti

 

Stainless Steel Suppliers

If you have project requirements for stainless steel, we welcome your order. GNEE has a large inventory of popular products for you to choose from. It can be processed into various practical product forms, including plates, coils, tubes, bars, wires, etc. For detailed chemical composition information and free samples, please contact our factory immediately. We offer competitive prices and excellent service.Email: info@gneestainless.com

 

Testing and Documentation: Factory test certificate, EN 10204 3.1, chemical report, mechanical report, destructive testing report, non-destructive testing report, PMI test report, visual inspection report, third-party inspection report, NABL certified laboratory report.
Packaging: Wooden crate packaging, bubble wrap packaging, steel strapping, or packaging according to customer requirements.