Stainless Steel 317Ti Plates are a high-alloy austenitic stainless steel product designed for improved corrosion resistance in high-temperature environments. The addition of titanium makes this grade unique, enhancing its resistance to sensitization and intergranular corrosion, especially after welding or prolonged exposure to elevated temperatures. These plates are widely used in chemical processing, petrochemical, and marine industries for their outstanding mechanical and anti-corrosive properties.
In this article, we explore the composition, key features, applications, and benefits of Stainless Steel 317Ti Plates.
Chemical Composition of Stainless Steel 317Ti
Element Content (%)
Chromium (Cr) 18.0 – 20.0
Nickel (Ni) 11.0 – 15.0
Molybdenum (Mo) 3.0 – 4.0
Manganese (Mn) ≤ 2.0
Silicon (Si) ≤ 1.0
Carbon (C) ≤ 0.08
Phosphorus (P) ≤ 0.045
Sulfur (S) ≤ 0.030
Titanium (Ti) ≥ 5x(C%+N%) min
Iron (Fe) Balance
The higher content of molybdenum and nickel compared to standard stainless steels improves resistance to chemical attack, while titanium stabilizes the material during thermal exposure.
Key Features of Stainless Steel 317Ti Plates
Excellent Corrosion Resistance
These plates offer superior resistance to general and localized corrosion, especially in acidic and chloride-rich environments. The molybdenum content significantly improves pitting and crevice corrosion resistance.
Enhanced High-Temperature Strength
Titanium addition prevents the formation of chromium carbide during heat exposure, allowing the material to retain strength and corrosion resistance at high temperatures.
Weldability and Fabrication
Stainless Steel 317Ti Plates are easy to weld using standard techniques such as TIG, MIG, and SMAW. Post-weld annealing is generally not necessary, reducing fabrication costs.
Creep and Stress Rupture Resistance
The grade performs well under prolonged exposure to elevated temperatures and pressure, making it suitable for heat exchanger and pressure vessel applications.
Long Service Life
Due to its robust physical and mechanical properties, 317Ti plates offer long-term performance even in harsh industrial conditions.
Mechanical Properties
Property Value
Density 8.0 g/cm³
Melting Point 1398–1446 °C
Tensile Strength ≥ 515 MPa
Yield Strength ≥ 205 MPa
Elongation ≥ 35%
Hardness (Brinell) ≤ 217 HB
Applications of Stainless Steel 317Ti Plates
Due to their unique properties, 317Ti plates are used in a wide variety of demanding applications:
Chemical Processing Equipment
Reactors, tanks, and pipelines for handling acidic substances.
Petrochemical and Refinery Units
Ideal for heat exchangers, flue gas scrubbers, and boiler components.
Marine Environments
Excellent for offshore platforms, seawater cooling systems, and shipbuilding due to resistance to chloride-induced corrosion.
Pulp and Paper Industry
Used in digesters and bleaching equipment exposed to harsh chemicals.
Food Processing and Pharmaceuticals
Suitable for high-hygiene and corrosion-resistant requirements.
Power Generation
Utilized in superheaters, reheaters, and pressure vessels in power plants.
Advantages of Stainless Steel 317Ti Plates
Superior corrosion resistance in aggressive environments.
Enhanced stability at high temperatures due to titanium stabilization.
Reduced risk of intergranular corrosion after welding.
Good formability and weldability.
Longevity and reliability in service.
Conclusion
Stainless Steel 317Ti Plates are a high-performance solution for industries requiring strong corrosion resistance and durability under high-temperature conditions. Their chemical composition, mechanical integrity, and ability to withstand harsh environments make them a valuable material in sectors like chemical processing, marine, and energy. When reliability and performance are essential, 317Ti stainless steel plates offer both strength and value.
Whether you're sourcing for chemical reactors, heat exchangers, or marine components, Stainless Steel 317Ti Plates are a smart and sustainable investment in long-term industrial success.
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