EN 1.4878 Austenitic Stainless Steel – High-Temp Titanium-Stabilized Alloy

Description

EN 1.4878 is a titanium-stabilized austenitic stainless steel, corresponding to AISI 321, engineered for high-temperature applications requiring enhanced intergranular corrosion resistance. It contains 17.0-19.0% chromium, 9.0-12.0% nickel, and 0.15-0.40% titanium- which binds with carbon to prevent chromium carbide precipitation, ensuring resistance to sensitization even after welding. Unlike EN 1.4541, it offers superior high-temperature stability and creep strength, suitable for continuous service at temperatures up to 800°C. It is non-magnetic at room temperature, has good formability and weldability, and is widely used in aerospace, automotive, and industrial heating applications where high-heat performance and post-weld corrosion resistance are critical.

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 ≤ 0.030

Mechanical Properties

Tensile Strength ≥ 515 MPa, Yield Strength ≥ 205 MPa, Elongation ≥ 40%, Hardness ≤ 201 HB

Advantages

Titanium-stabilized for superior intergranular corrosion resistance; excellent high-temperature creep strength; non-magnetic; good weldability and formability; suitable for high-heat critical applications; post-weld corrosion stable.

Applications

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

Equivalent Grades

AISI 321, UNS S32100, GB 06Cr18Ni10Ti, SUS321

 

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.