TA9-1 Titanium

Update : 2026-02-25

TA9-1 Titanium
TA9-1 is an alpha-phase titanium alloy with optimized palladium content, designed for enhanced corrosion resistance in harsh acidic and chloride environments. It retains the low density, good ductility, formability, and weldability of pure titanium, while delivering superior resistance to crevice corrosion and pitting. With stable mechanical properties and excellent service performance in reducing and oxidizing media, it is widely used in chemical processing, marine engineering, desalination, and offshore equipment for long-term reliability in corrosive conditions.
Equivalent Grade

Chinese Standard: TA9-1 / Ti-0.3Mo-0.8Ni

UNS R52250

W.Nr.: 3.7255

Standard● Sheet/Plate: GB/T 3621

Bar: GB/T 2965

Pipe/Tube: GB/T 3624

ASTM B265, ASTM B348, ASTM B338

Alloy TypeAlpha Titanium Alloy (Ti-Molybdenum-Nickel Alloy, Corrosion-Resistant Optimized Type)
StandardSheet, Bar, Pipe, Tube, Fittings, Flange, Welding Materials, Forgings, Heat Exchanger Tubes, Precision Corrosion-Resistant Pipe Fittings
Key Properties

● Corrosion resistance is better than TA9; added molybdenum and nickel significantly improve resistance to reducing acids (hydrochloric acid, sulfuric acid) and chloride-containing media

Stable mechanical properties at room and medium temperatures (≤350℃), good plasticity, excellent toughness, no stress corrosion cracking tendency

Good oxidation resistance, non-magnetic, excellent biocompatibility, and outstanding crevice corrosion resistance

Excellent processability, weldable, stampable, forgeable, corrosion resistance remains stable after welding, no additional heat treatment required

Applicable EnvironmentStrong reducing acid corrosion scenarios, high-chloride medium environment, chemical acid-resistant equipment, seawater desalination, chlor-alkali industry, nuclear power auxiliary, medical devices
Typical ApplicationsChemical Acid-Resistant Pipelines, Hydrochloric Acid/Sulfuric Acid Reaction Equipment, Heat Exchanger Tubes, Core Components Of Chlor-Alkali Equipment, Nuclear Power Auxiliary Pipelines, Medical Precision Corrosion-Resistant Components, Seawater Desalination Equipment Fittings, etc.


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