EN 1.4541 Stainless Steel – Titanium-Stabilized High-Strength Austenitic Alloy

Overview

EN 1.4541 is a titanium-stabilized austenitic stainless steel, equivalent to AISI 321Ti, designed to deliver superior intergranular corrosion resistance and high-temperature strength. It contains 0.15-0.40% titanium, which binds with carbon to form stable carbides, preventing chromium depletion and sensitization during welding and high-temperature exposure. This grade features a balanced chromium-nickel composition, offering general corrosion resistance comparable to EN 1.4301, with enhanced creep strength and thermal stability at temperatures up to 850°C. Non-magnetic and highly weldable, it is the preferred choice for high-temperature welded components requiring long-term corrosion and structural integrity.

Chemical Composition (wt%)

C ≤ 0.08, Cr: 17.00-19.00, Ni: 9.00-12.00, Ti: 0.15-0.40, Mn ≤ 2.00, Si ≤ 1.00, P ≤ 0.045, S ≤ 0.015

Typical Mechanical Properties (Annealed Condition)

Tensile Strength (Rm): ≥ 515 MPa; Yield Strength (Rp0.2): ≥ 205 MPa; Elongation (A): ≥ 40%; Brinell Hardness (HB): ≤ 201

Core Advantages

Titanium stabilization eliminates sensitization and intergranular corrosion; superior high-temperature creep strength and thermal stability; non-magnetic; excellent weldability and formability; stable performance in thermal-cycling environments; good general corrosion resistance.

Applications

Aerospace components, automotive exhaust systems, boiler tubes, high-temperature heat exchangers, furnace components, and high-temperature welded structural parts.

Equivalent Grades

AISI 321Ti, UNS S32103, GB 06Cr18Ni10Ti, SUS321Ti

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.