316Ti – Titanium-Stabilized Austenitic Steel: High-Temperature Corrosion Stabilizer

Overview

316Ti is a titanium-stabilized austenitic stainless steel, developed to address intergranular corrosion issues during high-temperature service and welding. By incorporating 0.20-0.70% titanium, it forms stable titanium carbides, which prevent the formation of chromium carbides and maintain the material's corrosion resistance even after prolonged exposure to temperatures between 425-815°C. It retains the same molybdenum, chromium, and nickel content as 316, ensuring superior pitting corrosion resistance in chloride environments. Non-magnetic, highly formable, and weldable, 316Ti is ideal for high-temperature corrosive environments where non-stabilized grades may suffer from sensitization.

Chemical Composition (wt%)

C ≤ 0.08, Si ≤ 1.00, Mn ≤ 2.00, P ≤ 0.045, S ≤ 0.030, Cr: 16.00-18.00, Ni: 10.00-14.00, Mo: 2.00-3.00, Ti: 0.20-0.70

Typical Mechanical Properties (Annealed Condition)

Tensile Strength (Rm): ≥ 520 MPa; Yield Strength (Rp0.2): ≥ 205 MPa; Elongation (A): ≥ 40%; Brinell Hardness (HB): ≤ 187

Core Advantages

Titanium stabilization prevents intergranular corrosion in high-temperature service and welded joints; excellent pitting and crevice corrosion resistance in chloride environments; non-magnetic; good formability and weldability; high-temperature stability (up to 800°C continuous service).

Applications

High-temperature heat exchangers, chemical reactors, steam pipelines, petrochemical processing equipment, and high-temperature corrosive environments requiring long-term stability.

Equivalent Grades

UNS S31635, STS316Ti, SUS316Ti, EN 1.4571, GB 06Cr17Ni12Mo2Ti

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.
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